http://www.collembola.org/key/fkopittr.htm - Last updated on 2017.09.09 by Frans Janssens
Checklist of the Collembola: Pictorial key to common surface dwelling species of Collembola from Opitter, Limburg, Belgium

This key is still under construction. Note that missing figures will be provided as soon as possible. Currently, the key is in the feasibility study phase to find out how to integrate in the checklist in a modular way a key that has been generated with DELTA.

Frans Janssens, Department of Biology, University of Antwerp, BE-2020 Antwerp, Belgium
Marie Louise Huskens, Opitterkiezel 223 bus 0.1, BE-3960 Opitter, Belgium

Preamble

This experimental and macrophotographically illustrated key is intended to key out the most common surface dwelling species of Collembola from Opitter, Limburg, Belgium, based on habitus inspection of alive specimens in the field using at most a magnification of 5 times.

All illustrations courtesy of Marie Louise Huskens.

Rationale

The rationale for taxa used and not used as well as subtaxonomic classification for some taxa is to be provided.

Key

Note that no distinction between subtaxa and taxa is made in the key.

   
1(0).   Body shape elongate (fig.1); trunk segments separate..... 2
        Body shape subglobular (fig.2); trunk segments fused.... 31
 

Fig.1.
 

Fig.2.
 
2(1).   Thorax with constricted neck (fig.3)..... Proisotoma minuta
        Thorax without neck......................................... 3
 

Fig.3.
 
3(2).   Antennae longer than head; first thoracic tergite absent
          (fig.4a); legs long; trunk segmentation outline smooth
          (fig.1)................................................ 4
        Antennae shorter than head; first thoracic tergite present but
          quite narrow (fig.4b); legs short; trunk segmentation
          outline bumpy (fig.5)................................. 25
 

Fig.4.
 

Fig.5.
 
4(3).   Third antennal segment distinctly longer than other antennal
          segments (fig.6)....................................... 5
        Third antennal segment not distinctly longer than other
          antennal segments......................................... 6
 

Fig.6.
 
5(4).   Body colour purplish black with banded pattern (fig.7).....
           ........................................ Tomocerus vulgaris
        Body colour uniform bluish (fig.8)......... Tomocerus minor
 

Fig.7.
 

Fig.8.
 
6(4).   Fourth abdominal segment as long as third abdominal segment
          (fig.9)................................................ 7
        Fourth abdominal segment longer than third abdominal segment
          (fig.10)............................................... 16
 

Fig.9.
 

Fig.10.
 
7(6).   Body colour uniform......................................... 8
        Body colour with longitudinal pattern...................... 11
 
8(7).   Body with pigmentation...................................... 9
        Body without pigmentation, white (fig.11)...................
           ...................................... Parisotoma notabilis
 

Fig.11.
 
9(8).   Body colour greenish (fig.12)............... Isotoma viridis
        Body colour purplish....................................... 10
 

Fig.12.
 
10(9).  Antennae bluish (fig.13)............... Isotomurus fucicolus
        Antennae purplish (fig.14).............. Vertagopus arboreus
 

Fig.13.
 

Fig.14.
 
11(7).  Body with middorsal and dorsolateral stripes............... 12
        Body with only middorsal stripe (fig.15)....................
           ................................... Isotomurus unifasciatus
 

Fig.15.
 
12(11). Middorsal stripe from neck to second abdominal segment
          (fig.16)............................. Isotomurus palustris
        Middorsal stripe from neck to sixth abdominal segment...... 13
 

Fig.16.
 
13(12). Middorsal stripe iregular.................................. 14
        Middorsal stripe uniformly broad (fig.17)...................
           ....................................... Isotomurus plumosus
 

Fig.17.
 
14(13). Fourth abdominal segment with 2 pale dots at anterior margin
          (fig.18)............................................... 15
        Fourth abdominal segment with crown-shaped patch (fig.19)...
           ...................................... Isotomurus maculatus
 

Fig.18.
 

Fig.19.
 
15(14). Abdominal segments with irregular median patch (fig.20).....
           ................................ Isotomurus pseudopalustris
        Abdominal segments with triangular median patch (fig.21)....
           ................. Isotomurus pseudopalustris forma gervaisi
 

Fig.20.
 

Fig.21.
 
16(6).  Fourth abdominal segment longer than 2 times third abdominal
          segment.................................................. 17
        Fourth abdominal segment maximum 2 times third abdominal
          segment (fig.22)....................................... 21
 

Fig.22.
 
17(16). Scales absent.............................................. 18
        Scales present (fig.23)........................ Lepidocyrtus
 

Fig.23.
 
18(17). Thorax not with distinct white band........................ 19
        Thorax with distinct white band (fig.24)....................
           ..................................... Entomobrya albocincta
 

Fig.24.
 
19(18). Fourth abdominal segment with transverse band.............. 20
        Fourth abdominal segment without transverse band (fig.25)...
           ....................................... Entomobrya nicoleti
 

Fig.25.
 
20(19). Fourth abdominal segment with 1 transverse band (fig.26)....
           ..................................... Entomobrya corticalis
        Fourth abdominal segment with 2 irregular transverse bands
          (fig.27)......................... Entomobrya multifasciata
 

Fig.26.
 

Fig.27.
 
21(16). Scales absent.............................................. 22
        Scales present............................................. 24
 
22(21). Body with longitudinal stripes............................. 23
        Body with transverse bands (fig.22)....... Orchesella cincta
 
23(22). Head dark (fig.28)............... Orchesella flavescens male
        Head pale (fig.29)............. Orchesella flavescens female
 

Fig.28.
 

Fig.29.
 
24(21). Body pigment absent (fig.30)............ Heteromurus nitidus
        Body pigment present (fig.31)............. Heteromurus major
 

Fig.30.
 

Fig.31.
 
25(3).  Body pigment absent; eyes absent........................... 26
        Body pigment present; eyes present......................... 27
 
26(25). Body narrow, wormlike (fig.32).................. Mesaphorura
        Body not wormlike (fig.33).............. Protaphorura armata
 

Fig.32.
 

Fig.33.
 
27(25). Sixth abdominal segment in dorsal aspect pointed (fig.34)...
           ........................................................ 28
        Sixth abdominal segment in dorsal aspect rounded (fig.35)...
           ........................................... Podura aquatica
 

Fig.34.
 

Fig.35.
 
28(27). Body with short and long setae............................. 29
        Body with short setae only................................. 30
 
29(28). Fourth abdominal segment with seta p1 longer than p2
          (fig.36) (fig.37)................. Ceratophysella armata
        Fourth abdominal segment with seta p1 shorter than p2
          (fig.38) (fig.39)............ Ceratophysella denticulata
 

Fig.36.
 

Fig.37.
 

Fig.38.
 

Fig.39.
 
30(28). Skin with dull look.............................. Hypogastrura
        Skin with shiny leather look (fig.34)............... Xenylla
 
31(1).  Antennae longer than head.................................. 32
        Antennae shorter than head (fig.40).... Megalothorax minimus
 

Fig.40.
 
32(31). Fourth antennal segment distinctly shorter than third antennal
          segment (fig.41)....................................... 33
        Fourth antennal segment longer than third antennal segment. 35
 

Fig.41.
 
33(32). Eyepatch background colour black........................... 34
        Eyepatch background colour reddish (fig.42).................
           .................................... Calvatomina nr superba
 

Fig.42.
 
34(33). Body colour uniform brown-reddish (fig.43).. Dicyrtoma fusca
        Body colour yellow with patchy ornamentation (fig.44).......
           ........................................ Dicyrtomina ornata
 

Fig.43.
 

Fig.44.
 
35(32). Trunk dorsally with many macrosetae........................ 36
        Trunk without distinct macrosetae.......................... 38
 
36(35). Body colour brownish....................................... 37
        Body colour greenish (fig.45)............ Sminthurus viridis
 

Fig.45.
 
37(36). Body pigmentation spotted (fig.46)..... Allacma fusca female
        Body pigmentation uniform (fig.47)....... Allacma fusca male
 

Fig.46.
 

Fig.47.
 
38(35). Antennae modified with clasping mechanism (fig.48)..........
           ............................... Sminthurides aquaticus male
        Antennae unmodified........................................ 39
 

Fig.48.
 
39(38). Body colour not whitish.................................... 40
        Body colour whitish (fig.49).. Sminthurides aquaticus female
 

Fig.49.
 
40(39). Trunk with lateral longitudinal pigment (fig.50)............
           ............................. Sminthurides malmgreni female
        Trunk without lateral longitudinal pigment................. 41
 

Fig.50.
 
41(40). Fourth antennal segment not subdivided (fig.51a)......... 42
        Fourth antennal segment subdivided (fig.51b) (fig.52).....
           ....................... Deuterosminthurus pallipes repandus
 

Fig.51.
 

Fig.52.
 
42(41). Body colouration uniform................................... 43
        Body colouration with pigmentation pattern................. 46
 
43(42). Body black (fig.53)...................... Sminthurinus niger
        Body golden yellow (fig.54).............................. 44
 

Fig.53.
 

Fig.54.
 
44(43). Trunk with dorsal pattern.................................. 45
        Trunk without dorsal pattern (fig.54)... Sminthurinus aureus
 
45(44). Dorsal pattern orange transverse reticulate (fig.55)........
           ..................... Sminthurinus aureus forma reticulatus
        Dorsal pattern posteriorly black comma-shaped (fig.56)......
           ....................... Sminthurinus aureus forma maculatus
 

Fig.55.
 

Fig.56.
 
46(42). Abdominal pigmentation dorsally reticulate (fig.57).........
           .................................. Sminthurinus reticulatus
        Abdominal pigmentation with lateral white spot (fig.58).....
           ................................... Sminthurinus trinotatus

Fig.57.
 

Fig.58.
 


Differential diagnoses

Allacma fusca female
Antennae longer than head. Body colour brownish. Body pigmentation spotted (fig.46). Body shape subglobular (fig.2). Fourth antennal segment longer than third antennal segment. Trunk dorsally with many macrosetae. Trunk segments fused.

Allacma fusca male
Antennae longer than head. Body colour brownish. Body pigmentation uniform (fig.47). Body shape subglobular (fig.2). Fourth antennal segment longer than third antennal segment. Trunk dorsally with many macrosetae. Trunk segments fused.

Calvatomina nr superba
Antennae longer than head. Body shape subglobular (fig.2). Eyepatch background colour reddish (fig.42). Fourth antennal segment distinctly shorter than third antennal segment (fig.41). Trunk segments fused.

Ceratophysella armata
Antennae shorter than head. Body pigment present. Body shape elongate (fig.1). Body with short and long setae. Eyes present. First thoracic tergite present but quite narrow (fig.4b). Fourth abdominal segment with seta p1 longer than p2 (fig.36) (fig.37). Legs short. Sixth abdominal segment in dorsal aspect pointed (fig.34). Thorax without neck. Trunk segmentation outline bumpy (fig.5). Trunk segments separate.

Ceratophysella denticulata
Antennae shorter than head. Body pigment present. Body shape elongate (fig.1). Body with short and long setae. Eyes present. First thoracic tergite present but quite narrow (fig.4b). Fourth abdominal segment with seta p1 shorter than p2 (fig.) (fig.39). Legs short. Sixth abdominal segment in dorsal aspect pointed (fig.34). Thorax without neck. Trunk segmentation outline bumpy (fig.5). Trunk segments separate.

Deuterosminthurus pallipes repandus
Antennae unmodified. Antennae longer than head. Body colour not whitish. Body shape subglobular (fig.2). Fourth antennal segment subdivided (fig.51b) (fig.52). Fourth antennal segment longer than third antennal segment. Trunk without lateral longitudinal pigment. Trunk without distinct macrosetae. Trunk segments fused.

Dicyrtoma fusca
Antennae longer than head. Body colour uniform brown-reddish (fig.43). Body shape subglobular (fig.2). Eyepatch background colour black. Fourth antennal segment distinctly shorter than third antennal segment (fig.41). Trunk segments fused.

Dicyrtomina ornata
Antennae longer than head. Body colour yellow with patchy ornamentation (fig.44). Body shape subglobular (fig.2). Eyepatch background colour black. Fourth antennal segment distinctly shorter than third antennal segment (fig.41). Trunk segments fused.

Entomobrya albocincta
Antennae longer than head. Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Fourth abdominal segment longer than third abdominal segment (fig.10). Fourth abdominal segment longer than 2 times third abdominal segment. Legs long. Scales absent. Third antennal segment not distinctly longer than other antennal segments. Thorax with distinct white band (fig.24). Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Entomobrya corticalis
Antennae longer than head. Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Fourth abdominal segment longer than third abdominal segment (fig.10). Fourth abdominal segment longer than 2 times third abdominal segment. Fourth abdominal segment with transverse band. Fourth abdominal segment with 1 transverse band (fig.26). Legs long. Scales absent. Third antennal segment not distinctly longer than other antennal segments. Thorax not with distinct white band. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Entomobrya multifasciata
Antennae longer than head. Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Fourth abdominal segment longer than third abdominal segment (fig.10). Fourth abdominal segment longer than 2 times third abdominal segment. Fourth abdominal segment with transverse band. Fourth abdominal segment with 2 irregular transverse bands (fig.27). Legs long. Scales absent. Third antennal segment not distinctly longer than other antennal segments. Thorax not with distinct white band. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Entomobrya nicoleti
Antennae longer than head. Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Fourth abdominal segment longer than third abdominal segment (fig.10). Fourth abdominal segment longer than 2 times third abdominal segment. Fourth abdominal segment without transverse band (fig.25). Legs long. Scales absent. Third antennal segment not distinctly longer than other antennal segments. Thorax not with distinct white band. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Heteromurus major
Antennae longer than head. Body pigment present (fig.31). Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Fourth abdominal segment longer than third abdominal segment (fig.10). Fourth abdominal segment maximum 2 times third abdominal segment (fig.22). Legs long. Scales present. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Heteromurus nitidus
Antennae longer than head. Body pigment absent (fig.30). Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Fourth abdominal segment longer than third abdominal segment (fig.10). Fourth abdominal segment maximum 2 times third abdominal segment (fig.22). Legs long. Scales present. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Hypogastrura
Antennae shorter than head. Body pigment present. Body shape elongate (fig.1). Body with short setae only. Eyes present. First thoracic tergite present but quite narrow (fig.4b). Legs short. Sixth abdominal segment in dorsal aspect pointed (fig.34). Skin with dull look. Thorax without neck. Trunk segmentation outline bumpy (fig.5). Trunk segments separate.

Isotoma viridis
Antennae longer than head. Body with pigmentation. Body colour uniform. Body colour greenish (fig.12). Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Fourth abdominal segment as long as third abdominal segment (fig.9). Legs long. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Isotomurus fucicolus
Antennae bluish (fig.13). Antennae longer than head. Body with pigmentation. Body colour uniform. Body colour purplish. Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Fourth abdominal segment as long as third abdominal segment (fig.9). Legs long. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Isotomurus maculatus
Antennae longer than head. Body colour with longitudinal pattern. Body shape elongate (fig.1). Body with middorsal and dorsolateral stripes. First thoracic tergite absent (fig.4a). Fourth abdominal segment as long as third abdominal segment (fig.9). Fourth abdominal segment with crown-shaped patch (fig.19). Legs long. Middorsal stripe iregular. Middorsal stripe from neck to sixth abdominal segment. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Isotomurus palustris
Antennae longer than head. Body colour with longitudinal pattern. Body shape elongate (fig.1). Body with middorsal and dorsolateral stripes. First thoracic tergite absent (fig.4a). Fourth abdominal segment as long as third abdominal segment (fig.9). Legs long. Middorsal stripe from neck to second abdominal segment (fig.16). Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Isotomurus plumosus
Antennae longer than head. Body colour with longitudinal pattern. Body shape elongate (fig.1). Body with middorsal and dorsolateral stripes. First thoracic tergite absent (fig.4a). Fourth abdominal segment as long as third abdominal segment (fig.9). Legs long. Middorsal stripe uniformly broad (fig.17). Middorsal stripe from neck to sixth abdominal segment. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Isotomurus pseudopalustris
Abdominal segments with irregular median patch (fig.20). Antennae longer than head. Body colour with longitudinal pattern. Body shape elongate (fig.1). Body with middorsal and dorsolateral stripes. First thoracic tergite absent (fig.4a). Fourth abdominal segment as long as third abdominal segment (fig.9). Fourth abdominal segment with 2 pale dots at anterior margin (fig.18). Legs long. Middorsal stripe iregular. Middorsal stripe from neck to sixth abdominal segment. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Isotomurus pseudopalustris forma gervaisi
Abdominal segments with triangular median patch (fig.21). Antennae longer than head. Body colour with longitudinal pattern. Body shape elongate (fig.1). Body with middorsal and dorsolateral stripes. First thoracic tergite absent (fig.4a). Fourth abdominal segment as long as third abdominal segment (fig.9). Fourth abdominal segment with 2 pale dots at anterior margin (fig.18). Legs long. Middorsal stripe iregular. Middorsal stripe from neck to sixth abdominal segment. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Isotomurus unifasciatus
Antennae longer than head. Body colour with longitudinal pattern. Body shape elongate (fig.1). Body with only middorsal stripe (fig.15). First thoracic tergite absent (fig.4a). Fourth abdominal segment as long as third abdominal segment (fig.9). Legs long. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Lepidocyrtus
Antennae longer than head. Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Fourth abdominal segment longer than third abdominal segment (fig.10). Fourth abdominal segment longer than 2 times third abdominal segment. Legs long. Scales present (fig.23). Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Megalothorax minimus
Antennae shorter than head (fig.40). Body shape subglobular (fig.2). Trunk segments fused.

Mesaphorura
Antennae shorter than head. Body narrow, wormlike (fig.32). Body pigment absent. Body shape elongate (fig.1). Eyes absent. First thoracic tergite present but quite narrow (fig.4b). Legs short. Thorax without neck. Trunk segmentation outline bumpy (fig.5). Trunk segments separate.

Orchesella cincta
Antennae longer than head. Body shape elongate (fig.1). Body with transverse bands (fig.22). First thoracic tergite absent (fig.4a). Fourth abdominal segment longer than third abdominal segment (fig.10). Fourth abdominal segment maximum 2 times third abdominal segment (fig.22). Legs long. Scales absent. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Orchesella flavescens female
Antennae longer than head. Body shape elongate (fig.1). Body with longitudinal stripes. First thoracic tergite absent (fig.4a). Fourth abdominal segment longer than third abdominal segment (fig.10). Fourth abdominal segment maximum 2 times third abdominal segment (fig.22). Head pale (fig.29). Legs long. Scales absent. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Orchesella flavescens male
Antennae longer than head. Body shape elongate (fig.1). Body with longitudinal stripes. First thoracic tergite absent (fig.4a). Fourth abdominal segment longer than third abdominal segment (fig.10). Fourth abdominal segment maximum 2 times third abdominal segment (fig.22). Head dark (fig.28). Legs long. Scales absent. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Parisotoma notabilis
Antennae longer than head. Body without pigmentation, white (fig.11). Body colour uniform. Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Fourth abdominal segment as long as third abdominal segment (fig.9). Legs long. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Podura aquatica
Antennae shorter than head. Body pigment present. Body shape elongate (fig.1). Eyes present. First thoracic tergite present but quite narrow (fig.4b). Legs short. Sixth abdominal segment in dorsal aspect rounded (fig.35). Thorax without neck. Trunk segmentation outline bumpy (fig.5). Trunk segments separate.

Proisotoma minuta
Body shape elongate (fig.1). Thorax with constricted neck (fig.3). Trunk segments separate.

Protaphorura armata
Antennae shorter than head. Body not wormlike (fig.33). Body pigment absent. Body shape elongate (fig.1). Eyes absent. First thoracic tergite present but quite narrow (fig.4b). Legs short. Thorax without neck. Trunk segmentation outline bumpy (fig.5). Trunk segments separate.

Sminthurides aquaticus female
Antennae unmodified. Antennae longer than head. Body colour whitish (fig.49). Body shape subglobular (fig.2). Fourth antennal segment longer than third antennal segment. Trunk without distinct macrosetae. Trunk segments fused.

Sminthurides aquaticus male
Antennae modified with clasping mechanism (fig.48). Antennae longer than head. Body shape subglobular (fig.2). Fourth antennal segment longer than third antennal segment. Trunk without distinct macrosetae. Trunk segments fused.

Sminthurides malmgreni female
Antennae unmodified. Antennae longer than head. Body colour not whitish. Body shape subglobular (fig.2). Fourth antennal segment longer than third antennal segment. Trunk with lateral longitudinal pigment (fig.50). Trunk without distinct macrosetae. Trunk segments fused.

Sminthurinus aureus
Antennae unmodified. Antennae longer than head. Body golden yellow (fig.54). Body colour not whitish. Body colouration uniform. Body shape subglobular (fig.2). Fourth antennal segment not subdivided (fig.51a). Fourth antennal segment longer than third antennal segment. Trunk without dorsal pattern (fig.54). Trunk without lateral longitudinal pigment. Trunk without distinct macrosetae. Trunk segments fused.

Sminthurinus aureus forma maculatus
Antennae unmodified. Antennae longer than head. Body golden yellow (fig.54). Body colour not whitish. Body colouration uniform. Body shape subglobular (fig.2). Dorsal pattern posteriorly black comma-shaped (fig.56). Fourth antennal segment not subdivided (fig.51a). Fourth antennal segment longer than third antennal segment. Trunk with dorsal pattern. Trunk without lateral longitudinal pigment. Trunk without distinct macrosetae. Trunk segments fused.

Sminthurinus aureus forma reticulatus
Antennae unmodified. Antennae longer than head. Body golden yellow (fig.54). Body colour not whitish. Body colouration uniform. Body shape subglobular (fig.2). Dorsal pattern orange transverse reticulate (fig.55). Fourth antennal segment not subdivided (fig.51a). Fourth antennal segment longer than third antennal segment. Trunk with dorsal pattern. Trunk without lateral longitudinal pigment. Trunk without distinct macrosetae. Trunk segments fused.

Sminthurinus niger
Antennae unmodified. Antennae longer than head. Body black (fig.53). Body colour not whitish. Body colouration uniform. Body shape subglobular (fig.2). Fourth antennal segment not subdivided (fig.51a). Fourth antennal segment longer than third antennal segment. Trunk without lateral longitudinal pigment. Trunk without distinct macrosetae. Trunk segments fused.

Sminthurinus reticulatus
Abdominal pigmentation dorsally reticulate (fig.57). Antennae unmodified. Antennae longer than head. Body colour not whitish. Body colouration with pigmentation pattern. Body shape subglobular (fig.2). Fourth antennal segment not subdivided (fig.51a). Fourth antennal segment longer than third antennal segment. Trunk without lateral longitudinal pigment. Trunk without distinct macrosetae. Trunk segments fused.

Sminthurinus trinotatus
Abdominal pigmentation with lateral white spot (fig.58). Antennae unmodified. Antennae longer than head. Body colour not whitish. Body colouration with pigmentation pattern. Body shape subglobular (fig.2). Fourth antennal segment not subdivided (fig.51a). Fourth antennal segment longer than third antennal segment. Trunk without lateral longitudinal pigment. Trunk without distinct macrosetae. Trunk segments fused.

Sminthurus viridis
Antennae longer than head. Body colour greenish (fig.45). Body shape subglobular (fig.2). Fourth antennal segment longer than third antennal segment. Trunk dorsally with many macrosetae. Trunk segments fused.

Tomocerus minor
Antennae longer than head. Body colour uniform bluish (fig.8). Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Legs long. Third antennal segment distinctly longer than other antennal segments (fig.6). Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Tomocerus vulgaris
Antennae longer than head. Body colour purplish black with banded pattern (fig.7). Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Legs long. Third antennal segment distinctly longer than other antennal segments (fig.6). Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Vertagopus arboreus
Antennae purplish (fig.14). Antennae longer than head. Body with pigmentation. Body colour uniform. Body colour purplish. Body shape elongate (fig.1). First thoracic tergite absent (fig.4a). Fourth abdominal segment as long as third abdominal segment (fig.9). Legs long. Third antennal segment not distinctly longer than other antennal segments. Thorax without neck. Trunk segmentation outline smooth (fig.1). Trunk segments separate.

Xenylla
Antennae shorter than head. Body pigment present. Body shape elongate (fig.1). Body with short setae only. Eyes present. First thoracic tergite present but quite narrow (fig.4b). Legs short. Sixth abdominal segment in dorsal aspect pointed (fig.34). Skin with shiny leather look (fig.34). Thorax without neck. Trunk segmentation outline bumpy (fig.5). Trunk segments separate.


References