Three new species of the leafhopper genus Drabescus Stål (Hemiptera: Cicadellidae: Deltocephalinae) from China
Author
Wang, Jia-Jia
Author
Qu, Ling
Author
Xing, Ji-Chun
Author
Dai, Ren-Huai
text
Zootaxa
2016
4132
1
118
126
journal article
38695
10.11646/zootaxa.4132.1.10
aabfc626-a984-4cfb-b2c5-d99510212587
1175-5326
267392
B5DFD7CB-9A45-4FED-94D8-C5547E7C21B9
Key to species (males) of
Drabescus
from
China
(
D. albostriatus
,
D. atratus
,
D. extensus
,
D. fuscorufous
,
D. notatus
and
D. piceus
omitted).
1. Pygofer side without processes and with apex broadly rounded................................................. 2
- Pygofer side with processes or apex narrow and attenuate..................................................... 10
2. Aedeagal shaft with pair of processes basally................................................................ 3
- Aedeagal shaft with pair of processes medially (Figs. 1)...............................................
D. peltatus
3. Aedeagal shaft with branched basal processes............................................................... 4
- Aedeagal shaft basal processes unbranched.................................................................8
4. Basal processes each with at least two branches (Figs. 2)............................................
D. jinxiuensis
- Basal processes each with one branch...................................................................... 5
5. Aedeagal shaft expanded subapically...................................................................... 6
- Aedeagal shaft not expanded subapically...................................................................7
6. Valve triangular, subgenital plate slender (Figs. 3–4)..................................................
D. furcatus
- Valve arcuate, subgenital plate slightly broadened (Figs. 5–6).........................................
D. lamellatus
7. Aedeagal shaft cylindricall (Figs. 7)....................................................................
D. lii
- Aedeagal shaft short spiniform (Figs. 8)............................................................
D. gracilis
8. Connective Y-shaped................................................................................... 9
- Connective U-shaped (Figs. 9–10)..............................................................
D. pellucidus
9. Basal processes of aedeagal shaft with evenly curved lateral margins (Figs. 11).............................
D. piceatus
- Basal processes of aedeagal shaft with sinuate lateral margins (Figs. 12).................................
D. minipenis
10. Pygofer side with evenly curved sinuate process............................................................ 11
- Pygofer side with tapering apex or straight process.......................................................... 13
11. Aedeagal shaft with pair of basal processes, longer than shaft (Figs. 13)...............................
D. formosanus
- Processes not as above................................................................................ 12
12. Aedeagal shaft in lateral view narrowed from base to apex (Figs. 14)....................................
D. ineffectus
- Aedeagal shaft in lateral view with ventral margin expanded medially (Figs. 15)..........................
D. henanensis
13. Aedeagus with process................................................................................ 14
- Aedeagus without process (Figs. 16).....................................................
D. cuspidatus
sp. nov.
14. Aedeagus with two pairs of processes (Figs. 17)...............................................
D. quadrispinosus
- Aedeagus with pair of processes......................................................................... 15
15. Aedeagus with a pair of medial processes................................................................. 16
- Aedeagus with pair of basal processes.................................................................... 17
16. Aedeagus basal processes slightly shorter than shaft (Figs. 18).........................................
D. testaceus
- Aedeagus basal processes very short (Figs. 19)...................................................
D. conspicuous
17. Aedeagus basal processes extending to near apex of shaft..................................................... 18
- Aedeagus basal processes extending to midlength of shaft....................................................21
18. Aedeagal shaft with expanded distal part (Figs. 20).................................................
D. albosignus
- Aedeagal shaft with narrowed distal part.................................................................. 19
19. Aedeagal shaft compressed, with broad basal processes (Figs. 21)................................
D. nervosopunctatus
- Aedeagal shaft columnar, with slender basal processes....................................................... 20
20. Aedeagal shaft apex acute ventrally (Figs. 22)...........................................
D. multidentatus
sp. nov.
- Aedeagal shaft apex round ventrally (Figs. 23).....................................................
D. vilbastei
21. Pygofer side with serrate margin ventrally (Figs. 24)..................................................
D. ogumae
- Pygofer side with smooth margin ventrally................................................................ 22
22. Aedeagal shaft in lateral aspect columnar and straight (Figs. 25)....................................
D. shillongensis
- Aedeagal shaft in lateral aspect sinuate.................................................................... 23
23. Connective stem twice as long as arms (Figs. 26–27)........................................
D. convolutus
sp. nov.
- Connective stem similar in length to arms (Figs. 28–29)................................................
D. nitobei