Checklist of the Collembola: Key to the species of Lepidocyrtus from Europe |
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.
Eduardo Mateos,
Departament de Biologia Animal, Facultat de Biologia, Universitat de Barcelona, 08028 Barcelona, Spain
Frans Janssens,
Department of Biology, University of Antwerp, Antwerp, B-2020, Belgium
1(0). Dorsal cephalic macrochaetae R0 R1 present, R2 absent....... 2 Dorsal cephalic macrochaetae R0 R1 present, R2 present...... 7 2(1). Adult body 1.5 mm maximum length; fourth abdominal segment seta s absent; mesothorax not projecting......... vexillosus Adult body more than 2 mm in length; fourth abdominal segment seta s present; mesothorax projecting over the head....... 3 3(2). Fourth abdominal segment dorsal pseudopori absent; labial chaetotaxy with all setae ciliated; second abdominal segment seta li absent............................................ 4 Fourth abdominal segment dorsal pseudopori present; labial chaetotaxy with some smooth setae; second abdominal segment seta li fan-shaped.............................. curvicollis 4(3). Body pigmented...................................... paradoxus Body without pigment........................................ 5 5(4). Fourth abdominal segment seta T6 ciliated macrochaeta; prelabral setae smooth.................................... 6 Fourth abdominal segment seta T6 smooth mesochaeta; prelabral setae ciliated................................... nigrescens 6(5). Fourth abdominal segment macrochaeta E3 inserted above macrochaeta F2; intraocular seta q present.... montseniensis Fourth abdominal segment macrochaeta E3 inserted below macrochaeta F2; intraocular seta q absent....... flexicollis 7(1). Dorsal cephalic macrochaeta T absent........................ 8 Dorsal cephalic macrochaeta T present...................... 16 8(7). Fourth abdominal segment macrochaeta C1 absent; second abdominal segment macrochaeta m3 absent; thoracic and abdominal dorsal macrochaetae 00/0000 + 2........ fimetarius Fourth abdominal segment macrochaeta C1 present; second abdominal segment macrochaeta m3 present; thoracic and abdominal dorsal macrochaetae 00/0101 + 2 or 00/0101 + 3.. 9 9(8). Thoracic and abdominal dorsal macrochaetae 00/0101 + 2........ ............................................... arrabonicus Thoracic and abdominal dorsal macrochaetae 00/0101 + 3..... 10 10(9). Unguiculus acuminate....................................... 11 Unguiculus truncate........................................ 14 11(10). Mesothorax not projecting or sligthly projecting over the head; unguis basal pair teeth at 47-50% of the inner edge; unguis tooth at 70-75% of the inner edge................. 12 Mesothorax strongly projecting; unguis basal pair teeth at 40% of the inner edge; unguis tooth at 53% of the inner edge.... ................................................. instratus 12(11). Apex of the third row of labral setae branched............. 13 Apex of the third row of labral setae simple....... tellecheae 13(12). Pigment absent or blue pigment present in antennae, ventral head, second to third abdominal segment and coxae.. lignorum Pigment present in antennae, head, body, coxae, femora and manubrium......................................... violaceus 14(10). Dorsal cephalic macrochaeta So absent; with 1 odd tooth in the inner margin of the unguis............................ ruber Dorsal cephalic macrochaeta So present; with two or no odd teeth in the inner margin of the unguis.................. 15 15(14). Inner margin of the unguis with two little odd teeth; body not pigmented.......................................... peisonis Inner margin of the unguis without odd teeth; body pigmented.. ..................................................... uzeli 16(7). Dorsal cephalic macrochaeta S absent....................... 17 Dorsal cephalic macrochaeta S present...................... 18 17(16). R microchaeta; fourth abdominal segment seta F2 ciliated macrochaeta; labial chaetotaxy M1 M2 r' E L1 L2.... pallidus R short ciliated macrochaeta; fourth abdominal segment seta F2 smooth mesochaeta; labial chaetotaxy M1 M2 R* E L1 L2....... .................................................. weidneri 18(16). Thoracic dorsal macrochaetae 00............................ 19 Thoracic dorsal macrochaetae 10............................ 20 19(18). Fourth abdominal segment accesory seta s of anterior trichobothrium absent; second abdominal segment seta a2p present; second abdominal segment seta m3e absent.. serbicus Fourth abdominal segment accesory seta s of anterior trichobothrium present; second abdominal segment seta a2p absent; second abdominal segment seta m3e mesochaeta........ ......................................... pseudosinelloides 20(18). Abdominal dorsal macrochaetae 0101 + 2..................... 21 Abdominal dorsal macrochaetae 0301 + 3..................... 22 21(20). Body pigmented........................................ cyaneus Body without pigment.............................. lanuginosus 22(20). Apical antennal bulb bilobed; fourth abdominal segment setae E14p ciliated macrochaetae........................ bilobatus Apical antennal bulb simple; fourth abdominal segment setae E14p smooth mesochaetae.................................. 23 23(22). Labial seta R absent; ventral cephalic groove with 2 + 2 ciliated setae and 1 + 1 smooth setae............ selvaticus Labial seta R present; ventral cephalic groove with 3 + 3 ciliated setae........................................... 24 24(23). Body pigmented............................................. 25 Body without pigment.............................. lusitanicus 1 25(24). Head dark pigmented, as well as thorax and first to fifth abdominal segment.................................... nigrus 2 Head without pigment....................................... 26 26(25). Second thoracic segment with a conspicuous pigmented anterior margin.................................................... A 3 Second thoracic segment without pigment.................... 27 27(26). Third and fourth abdominal segment with patches of dark pigment; third thoracic segment to second abdominal segment without dark pigment............................. piezoensis 4 Third and fourth abdominal segment without patches of dark pigment; third thoracic segment to second abdominal segment with dark pigment................................. coloratus 5
Endnotes
1 As lusitanicus ssp. lusitanicus.
2 As lusitanicus ssp. nigrus.
3 As lusitanicus forma A.
4 As lusitanicus ssp. piezoensis.
5 As lusitanicus ssp. coloratus.