Hemithyrsocera Saussure, 1893

Zhang, Sainan, Liu, Xianwei & Li, Kai, 2019, A wingless species of the genus Hemithyrsocera Saussure (Blattodea: Ectobiidae) from China, Zoological Systematics 44 (2), pp. 123-131 : 123-124

Hemithyrsocera Saussure, 1893

Hemithyrsocera Saussure, 1893: 57 .

Plumiger Hebard, 1929: 22 , synonymized by Bruijning, 1948: 59.

Parasymploce Hebard, 1929: 69 , synonymized by Roth, 1995: 962.

Aristiger Hebard, 1940: 139 , synonymized by Roth, 1995: 962.

Mopserina Princis, 1950: 218 , synonymized by Princis, 1971: 1124.

Type species: Blatta palliata Fabricius, 1798 , designed by Kirby, 1904.

Generic description. Tegmina and hind wings fully developed extending beyond end of abdomen or curtate, former with a forked radial vein, discoidal veins longitudinal; latter with radial vein forked, CuA simple or with 1–3 complete branches, apical triangle developed. Spines of front femur Type A 2–3; pulvilli on 4 proximal tarsomeres, tarsal claws symmetrical, simple, arolia present. First abdominal tergum of male unspecialized; seventh abdominal tergum specialized, with a medial depressed region containing setae or sometimes the depression is subobsolete and setae are absent; most species also have a lateral lobe on each side of the segment. Supra-anal plate symmetrical, with a subcercal (intercercal) process ventrally near the base of each cercus. Subgenital plate strongly asymmetrical, hind margin with various shaped processes bearing long spines; styli represented by 1 or 2 large processes, right stylus sometimes presents as a small cylindrical process. Male genitalia have the hook on the left side (L3) and the median phallomere (L2vm) often with a slender rod or filament arising near or beyond the middle.

Distribution. China, India, Nepal, Vietnam, Thailand, Laos, Cambodia, Burma, Philippines, Malaysia, Indonesia, Papua New Guinea.

Key to species of Hemithyrsocera from China.

1. Tegmina and hind wings fully developed extending well beyond end of abdomen .............................................................................2 Tegmina curtate and hind wings absent................................................................................................................ H. hemiptera sp.nov.

2. CuA of hind wings simple or bifurcate................................................................................................................................................. 3 CuA of hind wings with 2 or 3 branches ..............................................................................................................................................6

3. Pronotum with complete yellow border ...............................................................................................................................................4 Pronotum with incomplete yellow border ............................................................................................................................................5

4. Tegmina blackish brown with orange yellow radial field; ventral abdomen black; posterior border of abdomen with white border .... ............................................................................................................................................................................................... H. vittata Tegmina light brown with hyaline and pale yellowish radial field; ventral abdomen yellowish brown; posterior border of abdomen without white border .......................................................................................................................................................... H. bifurcata

5. Lateral and posterior margin of pronotum with yellow border............................................................................................. H. fulmeki Posterior margin of pronotum with yellow border ................................................................................................................ H. palliata

6. Disc of pronotum with markings.......................................................................................................................................................... 7 Disc of pronotum without markings................................................................................................................................................... 10

7. Pronotum without yellow border........................................................................................................................................ H. macifera Anterior and posterior margin of pronotum with yellow border ..........................................................................................................8

8. Left lateral side of subgenital plate with fingerlike process ............................................................................................... H. forcipata Left lateral side of subgenital plate without fingerlike process ............................................................................................................9

9. Right stylus of subgenital plate with crooked process............................................................................................... H. banvaneuensis Right stylus of subgenital plate without crooked process................................................................................................... H. simulans

10. Lateral and posterior margin of pronotum with yellow border.................................................................................. H. multicuspidata Anterior and posterior margin of pronotum with yellow border ........................................................................................................ 11

11. Seventh tergite with lateral processes................................................................................................................................................. 12 Seventh tergite without lateral processes ...........................................................................................................................................13

12. Supra-anal plate with intercercal processes........................................................................................................................... H. limbata Intercercal processes of supra-anal plate absent ................................................................................................................. H. longiseta

13. Intercercal processes of supra-anal plate without spines ................................................................................................. H. marginalis Intercercal processes of supra-anal plate with spines ...................................................................................................... H. spinibarbis