Checklist of the Collembola: Key to the species of Homidia from China | ![]() |
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.
Shao-Bo Jia,
School of Life Sciences, Liaocheng University, Liaocheng 252059, Shandong Province, China
Yu-Ping Zhang,
School of Life Sciences, Liaocheng University, Liaocheng 252059, Shandong Province, China
Yan Zhao,
School of Life Sciences, Liaocheng University, Liaocheng 252059, Shandong Province, China
Rafael Jordana,
Department of Zoology and Ecology, University of Navarra, 31080, Pamplona, Navarra, Spain
Frans Janssens,
Department of Biology, University of Antwerp, Antwerp, B-2020, Belgium
H#-, T#- and A#-areas defined by Jordana & Baquero (2005).
Number of macrochaetae per half tergum.
1(0). Second abdominal segment with 2 macrochaetae on A1, second abdominal segment with 3 macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3.................... sauteri Second abdominal segment with 2 macrochaetae on A1, second abdominal segment with 4 macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3.......................... 2 2(1). Third abdominal segment not with 0, 0, 1 macrochaetae on A3, A4, and A5................................................ 3 Third abdominal segment with 0, 0, 1 macrochaetae on A3, A4, and A5................................................... 20 3(2). A4 on third abdominal segment with 1 macrochaeta............ 4 A4 on third abdominal segment with more than 1 macrochaeta. 18 4(3). T1 on second thoracic segment with 3 macrochaetae........... 5 T1 on second thoracic segment with 4 macrochaetae.......... 10 5(4). T2 on second thoracic segment with 2 macrochaetae.. anhuiensis T2 on second thoracic segment with more than 2 macrochaetae. 6 6(5). T2 on second thoracic segment with 3 macrochaetae............. .............................................. tiantaiensis T2 on second thoracic segment with more than 3 macrochaetae. 7 7(6). T2 on second thoracic segment with 4 macrochaetae........... 8 T2 on second thoracic segment with 5 macrochaetae........... 9 8(7). H1 on head with 3 macrochaetae; A9-A10 on fourth abdominal segment with 2 and 3 macrochaetae respectively......... leei H1 on head with 5 macrochaetae; A9-A10 on fourth abdominal segment with 1 and 1 macrochaetae respectively... tibetensis 9(7). A9-A10 on fourth abdominal segment with 3 and 3 macrochaetae respectively...................................... latifolia A9-A10 on fourth abdominal segment with 7 and 13 (15) macrochaetae respectively.......................... polyseta 10(4). T2 on second thoracic segment with 4 macrochaetae.......... 11 T2 on second thoracic segment with 5 or 6 macrochaetae..... 13 11(10). Fourth abdominal segment with 11 + 11 dorsal macrochaetae, formula A6-A10: 0-7-0-0-4....................... transitoria Fourth abdominal segment with more than 11 + 11 dorsal macrochaetae............................................. 12 12(11). A9-A10 on fourth abdominal segment with 2 and 5 macrochaetae respectively......................................... fascia A9-A10 on fourth abdominal segment with 5 and 3 macrochaetae respectively..................................... qimenensis 13(10). T2 on second thoracic segment with 5 macrochaetae.......... 14 T2 on second thoracic segment with 6 macrochaetae. linhaiensis 14(13). A9 on fourth abdominal segment with 1 macrochaeta; H3 macrochaeta present on the head................... apigmenta A9 on fourth abdominal segment with more than 1 macrochaeta; H3 macrochaeta absent on the head........................ 15 15(14). Fourth abdominal segment with 4 macrochaetae............... 16 Fourth abdominal segment with 8 or 9 macrochaetae on a10...... ................................................ ziguiensis 16(15). Dens with 88-114 spines.......................... huashanensis Dens with less than 80 spines.............................. 17 17(16). Dens with 17-38 spines.......................... phjongjangica Dens with 29-41 spines............................ mediofascia 1 18(3). A3-A5 on third abdominal segment with 0, 2, 1 macrochaetae. 19 A3-A5 on third abdominal segment with 0, 3, 0 macrochaetae.... ..................................................... socia 19(18). T1-T2 on second thoracic segment with 2 and 4 macrochaetae respectively.................................... pentachaeta T1-T2 on second thoracic segment with 4 and 5 macrochaetae respectively....................................... sinensis 20(2). A10 on fourth abdominal segment with 3 (2) macrochaetae....... .............................................. sichuanensis A10 on fourth abdominal segment with 4 (5) macrochaetae.... 21 21(20). A8 on fourth abdominal segment with 1 and 1 macrochaeta....... ................................................. formosana A8 on fourth abdominal segment without macrochaetae. emeiensis
Endnotes
1 Homidia mediofascia is probably a synonym of H. phjongjangica, the only character separating them is colour: a diffuse medial longitudinal band on Th. III to Abd. III is present in H. mediofascia, whereas H. phjongianica is described as having broad color variation that includes that pattern in the type series studied after Szeptycki's collection.
anhuiensis
A4 on third abdominal segment with 1 macrochaeta. T1
on second thoracic segment with 3 macrochaetae. T2 on second thoracic segment
with 2 macrochaetae. Second abdominal segment with 2 macrochaetae on A1,
second abdominal segment with 4 macrochaetae on A2, third abdominal segment
with 1 macrochaeta on A3. Third abdominal segment not with 0, 0, 1
macrochaetae on A3, A4, and A5.
apigmenta
A4 on third abdominal segment with 1 macrochaeta. A9
on fourth abdominal segment with 1 macrochaeta. H3 macrochaeta present on the
head. T1 on second thoracic segment with 4 macrochaetae. T2 on second thoracic
segment with 5 or 6 macrochaetae. T2 on second thoracic segment with 5
macrochaetae. Second abdominal segment with 2 macrochaetae on A1, second
abdominal segment with 4 macrochaetae on A2, third abdominal segment with 1
macrochaeta on A3. Third abdominal segment not with 0, 0, 1 macrochaetae on
A3, A4, and A5.
emeiensis
A10 on fourth abdominal segment with 4 (5)
macrochaetae. A8 on fourth abdominal segment without macrochaetae. Second
abdominal segment with 2 macrochaetae on A1, second abdominal segment with 4
macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3. Third
abdominal segment with 0, 0, 1 macrochaetae on A3, A4, and A5.
fascia
A4 on third abdominal segment with 1 macrochaeta. A9-A10
on fourth abdominal segment with 2 and 5 macrochaetae respectively. T1 on
second thoracic segment with 4 macrochaetae. T2 on second thoracic segment
with 4 macrochaetae. Fourth abdominal segment with more than 11 + 11 dorsal
macrochaetae. Second abdominal segment with 2 macrochaetae on A1, second
abdominal segment with 4 macrochaetae on A2, third abdominal segment with 1
macrochaeta on A3. Third abdominal segment not with 0, 0, 1 macrochaetae on
A3, A4, and A5.
formosana
A10 on fourth abdominal segment with 4 (5)
macrochaetae. A8 on fourth abdominal segment with 1 and 1 macrochaeta. Second
abdominal segment with 2 macrochaetae on A1, second abdominal segment with 4
macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3. Third
abdominal segment with 0, 0, 1 macrochaetae on A3, A4, and A5.
huashanensis
A4 on third abdominal segment with 1 macrochaeta.
A9 on fourth abdominal segment with more than 1 macrochaeta. H3 macrochaeta
absent on the head. T1 on second thoracic segment with 4 macrochaetae. T2 on
second thoracic segment with 5 or 6 macrochaetae. T2 on second thoracic
segment with 5 macrochaetae. Dens with 88114 spines. Fourth abdominal
segment with 4 macrochaetae. Second abdominal segment with 2 macrochaetae on
A1, second abdominal segment with 4 macrochaetae on A2, third abdominal
segment with 1 macrochaeta on A3. Third abdominal segment not with 0, 0, 1
macrochaetae on A3, A4, and A5.
latifolia
A4 on third abdominal segment with 1 macrochaeta.
A9-A10 on fourth abdominal segment with 3 and 3 macrochaetae respectively. T1
on second thoracic segment with 3 macrochaetae. T2 on second thoracic segment
with more than 2 macrochaetae. T2 on second thoracic segment with more than 3
macrochaetae. T2 on second thoracic segment with 5 macrochaetae. Second
abdominal segment with 2 macrochaetae on A1, second abdominal segment with 4
macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3. Third
abdominal segment not with 0, 0, 1 macrochaetae on A3, A4, and A5.
leei
A4 on third abdominal segment with 1 macrochaeta. A9-A10 on
fourth abdominal segment with 2 and 3 macrochaetae respectively. H1 on head
with 3 macrochaetae. T1 on second thoracic segment with 3 macrochaetae. T2 on
second thoracic segment with more than 2 macrochaetae. T2 on second thoracic
segment with more than 3 macrochaetae. T2 on second thoracic segment with 4
macrochaetae. Second abdominal segment with 2 macrochaetae on A1, second
abdominal segment with 4 macrochaetae on A2, third abdominal segment with 1
macrochaeta on A3. Third abdominal segment not with 0, 0, 1 macrochaetae on
A3, A4, and A5.
linhaiensis
A4 on third abdominal segment with 1 macrochaeta. T1
on second thoracic segment with 4 macrochaetae. T2 on second thoracic segment
with 5 or 6 macrochaetae. T2 on second thoracic segment with 6 macrochaetae.
Second abdominal segment with 2 macrochaetae on A1, second abdominal segment
with 4 macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3.
Third abdominal segment not with 0, 0, 1 macrochaetae on A3, A4, and A5.
mediofascia 1
A4 on third abdominal segment with 1
macrochaeta. A9 on fourth abdominal segment with more than 1 macrochaeta. H3
macrochaeta absent on the head. T1 on second thoracic segment with 4
macrochaetae. T2 on second thoracic segment with 5 or 6 macrochaetae. T2 on
second thoracic segment with 5 macrochaetae. Dens with less than 80 spines.
Dens with 2941 spines. Fourth abdominal segment with 4 macrochaetae.
Second abdominal segment with 2 macrochaetae on A1, second abdominal segment
with 4 macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3.
Third abdominal segment not with 0, 0, 1 macrochaetae on A3, A4, and A5.
pentachaeta
A3-A5 on third abdominal segment with 0, 2, 1
macrochaetae. A4 on third abdominal segment with more than 1 macrochaeta.
T1-T2 on second thoracic segment with 2 and 4 macrochaetae respectively.
Second abdominal segment with 2 macrochaetae on A1, second abdominal segment
with 4 macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3.
Third abdominal segment not with 0, 0, 1 macrochaetae on A3, A4, and A5.
phjongjangica
A4 on third abdominal segment with 1 macrochaeta.
A9 on fourth abdominal segment with more than 1 macrochaeta. H3 macrochaeta
absent on the head. T1 on second thoracic segment with 4 macrochaetae. T2 on
second thoracic segment with 5 or 6 macrochaetae. T2 on second thoracic
segment with 5 macrochaetae. Dens with less than 80 spines. Dens with
1738 spines. Fourth abdominal segment with 4 macrochaetae. Second
abdominal segment with 2 macrochaetae on A1, second abdominal segment with 4
macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3. Third
abdominal segment not with 0, 0, 1 macrochaetae on A3, A4, and A5.
polyseta
A4 on third abdominal segment with 1 macrochaeta.
A9-A10 on fourth abdominal segment with 7 and 13 (15) macrochaetae
respectively. T1 on second thoracic segment with 3 macrochaetae. T2 on second
thoracic segment with more than 2 macrochaetae. T2 on second thoracic segment
with more than 3 macrochaetae. T2 on second thoracic segment with 5
macrochaetae. Second abdominal segment with 2 macrochaetae on A1, second
abdominal segment with 4 macrochaetae on A2, third abdominal segment with 1
macrochaeta on A3. Third abdominal segment not with 0, 0, 1 macrochaetae on
A3, A4, and A5.
qimenensis
A4 on third abdominal segment with 1 macrochaeta.
A9-A10 on fourth abdominal segment with 5 and 3 macrochaetae respectively. T1
on second thoracic segment with 4 macrochaetae. T2 on second thoracic segment
with 4 macrochaetae. Fourth abdominal segment with more than 11 + 11 dorsal
macrochaetae. Second abdominal segment with 2 macrochaetae on A1, second
abdominal segment with 4 macrochaetae on A2, third abdominal segment with 1
macrochaeta on A3. Third abdominal segment not with 0, 0, 1 macrochaetae on
A3, A4, and A5.
sauteri
Second abdominal segment with 2 macrochaetae on A1,
second abdominal segment with 3 macrochaetae on A2, third abdominal segment
with 1 macrochaeta on A3.
sichuanensis
A10 on fourth abdominal segment with 3 (2)
macrochaetae. Second abdominal segment with 2 macrochaetae on A1, second
abdominal segment with 4 macrochaetae on A2, third abdominal segment with 1
macrochaeta on A3. Third abdominal segment with 0, 0, 1 macrochaetae on A3,
A4, and A5.
sinensis
A3-A5 on third abdominal segment with 0, 2, 1
macrochaetae. A4 on third abdominal segment with more than 1 macrochaeta.
T1-T2 on second thoracic segment with 4 and 5 macrochaetae respectively.
Second abdominal segment with 2 macrochaetae on A1, second abdominal segment
with 4 macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3.
Third abdominal segment not with 0, 0, 1 macrochaetae on A3, A4, and A5.
socia
A3-A5 on third abdominal segment with 0, 3, 0
macrochaetae. A4 on third abdominal segment with more than 1 macrochaeta.
Second abdominal segment with 2 macrochaetae on A1, second abdominal segment
with 4 macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3.
Third abdominal segment not with 0, 0, 1 macrochaetae on A3, A4, and A5.
tiantaiensis
A4 on third abdominal segment with 1 macrochaeta.
T1 on second thoracic segment with 3 macrochaetae. T2 on second thoracic
segment with more than 2 macrochaetae. T2 on second thoracic segment with 3
macrochaetae. Second abdominal segment with 2 macrochaetae on A1, second
abdominal segment with 4 macrochaetae on A2, third abdominal segment with 1
macrochaeta on A3. Third abdominal segment not with 0, 0, 1 macrochaetae on
A3, A4, and A5.
tibetensis
A4 on third abdominal segment with 1 macrochaeta.
A9-A10 on fourth abdominal segment with 1 and 1 macrochaetae respectively. H1
on head with 5 macrochaetae. T1 on second thoracic segment with 3
macrochaetae. T2 on second thoracic segment with more than 2 macrochaetae. T2
on second thoracic segment with more than 3 macrochaetae. T2 on second
thoracic segment with 4 macrochaetae. Second abdominal segment with 2
macrochaetae on A1, second abdominal segment with 4 macrochaetae on A2, third
abdominal segment with 1 macrochaeta on A3. Third abdominal segment not with
0, 0, 1 macrochaetae on A3, A4, and A5.
transitoria
A4 on third abdominal segment with 1 macrochaeta. T1
on second thoracic segment with 4 macrochaetae. T2 on second thoracic segment
with 4 macrochaetae. Fourth abdominal segment with 11 + 11 dorsal
macrochaetae, formula A6-A10: 07004. Second abdominal
segment with 2 macrochaetae on A1, second abdominal segment with 4
macrochaetae on A2, third abdominal segment with 1 macrochaeta on A3. Third
abdominal segment not with 0, 0, 1 macrochaetae on A3, A4, and A5.
ziguiensis
A4 on third abdominal segment with 1 macrochaeta. A9
on fourth abdominal segment with more than 1 macrochaeta. H3 macrochaeta
absent on the head. T1 on second thoracic segment with 4 macrochaetae. T2 on
second thoracic segment with 5 or 6 macrochaetae. T2 on second thoracic
segment with 5 macrochaetae. Fourth abdominal segment with 8 or 9 macrochaetae
on a10. Second abdominal segment with 2 macrochaetae on A1, second abdominal
segment with 4 macrochaetae on A2, third abdominal segment with 1 macrochaeta
on A3. Third abdominal segment not with 0, 0, 1 macrochaetae on A3, A4, and
A5.