Chinoperla, Sivec & Stark, 2010

Sivec, Ignac & Stark, Bill P., 2010, Five New Species Of Chinoperla Zwick (Plecoptera: Perlidae) From Vietnam And Thailand, Illiesia 6 (8), pp. 62-74 : 72-74

Provisional Key for Male Chinoperla

( C. nigroflavata not included)

1 Known from Borneo ……………………. borneensis

1’ Known from Sumatra, Hainan or mainland Asia …………………………..…………………………. 2

2 Aedeagal tip armed with a single long slender spine ( Fig. 4 ) ………………………...……………. 3

2’ Aedeagal tip variously armed with a broad sclerite, one or more short tooth or hook shaped spines, or with numerous small spines.………. 5

3 Tergum 9 process somewhat circular or oval and covered with small knobs or teeth ( Figs. 13-18 ) ……………………………………...……………. sila

3’ Tergum 9 process linear and without knobs or teeth ( Fig. 1 ) ………………………..……....…….. 4

4 Process of tergum 9 slender, more than twice as long as wide; upturned membranous aedeagal lobe larger than spine-bearing lobe ( Fig. 2 ); known from Vietnam ….…………….…. gorohovi

4’ Process of tergum 9 about as wide as long; upturned membranous aedeagal lobe smaller than spine-bearing lobe; known from Thailand …………………………………………… unidentata

5 Wings with dark apical band; aedeagal apex armed with a group of three moderately large teeth and two ventral clusters of 6-8 smaller teeth; known from Sumatra ……….……………. reducta

5’ Wing tips uniformly pigmented; aedeagal apex variously armed but not as above; known from Hainan or mainland Asia …...………..…………. 6

6 Wings with narrow pale apical band and pale median spot; dorsal process of tergum 9 expanded on posterior margin with a pair of small foot shaped extensions; known from Thailand and Malaysia ……………..… fascipennis

6’ Wings without pale apical band; dorsal process of tergum 9 not as above ………….……………….. 7

7 Hemitergal finger shaped processes at least 3 times long as basal width; aedeagal apex without large tooth like spines; known from India …………………………..………………… nigriceps

7’ Finger shaped hemitergal processes about 2.5 times long as basal width; aedeagal apex with one or more teeth …………………………………..…. 8

8 Aedeagal apex with one large spine ( Fig. 7 ) …... 9

8’ Aedeagal apex with several large spines; known from Hainan ………………..………..…. nigrifrons

9 Aedeagal apex sagittate ( Fig. 6 ); sclerite of aedeagal tube bracelet-like; known from Thailand ………………………………………………... porntip

9’ Aedeagal apex shape not sagittate; aedeagal tube sclerite linear …………………………...……….. 10

10 Apical aedeagal armature, a broad sclerite bearing a small fin-like process near tip ( Fig. 14 ); tergum 9 process bearing a few small knobs or teeth; known from Vietnam ………….….. rhododendrona

10’ Apical aedeagal armature without broad sclerite and fin-like process; tergum 9 process without knobs or teeth; known from Thailand or Vietnam ……………………………………………………. 11

11 Lateral aedeagal lobes directed backward ( Fig. 28 ); largest spines of armature patch surround apical tooth; known from Thailand ….….. spinata

11’ Lateral aedeagal lobes directed ventrad ( Fig. 39 ); largest spines of armature patch located on lateral lobes; known from Vietnam …………………… yi

Figures

Figs. 1-4. Chinoperla gorohovi. 1. Male terminalia. 2. Aedeagus lateral. 3. Aedeagus dorsal. 4. Aedeagal spine.

Figs. 11-15. Chinoperla rhododendrona. 11. Head and pronotum. 12. Male terminalia, dorsal. 13. Male terminalia, lateral. 14. Aedeagus lateral. 15. Female terminalia.

Figs. 16-21. Chinoperla eggs. C. rhododendrona (16-18) 16. Egg. 17. Egg collar. 18. Micropyle and equatorial chorionic detail. Chinoperla sila (19-21). 19. Egg. 20. Egg collar and anchor. 21. Micropyles and polar chorionic detail.

Figs. 5-10. Chinoperla porntip. 5. Male terminalia. 6. Aedeagus ventral. 7. Aedeagus lateral. 8. Aedeagus dorsal. 9. Female terminalia. 10. Egg.

Figs. 26-30. Chinoperla spinata. 26. Head and pronotum. 27. Male terminalia. 28. Aedeagus lateral. 29. Aedeagal apex. 30. Female terminalia.

Figs. 37-39. Chinoperla yi. 37. Head and pronotum. 38. Male terminalia. 39. Aedeagus lateral.