Phanoperla (Banks, 1938)

Sivec, Ignac & Stark, Bill P., 2010, Seven New Species Of Phanoperla Banks From Vietnam And Thailand (Plecoptera: Perlidae), Illiesia 6 (10), pp. 98-112 : 110-111

Provisional Key for Mainland Southeast Asian Phanoperla Males

[ P. fuscipennis (Navas) and P. namcattien Cao & Bae not included]

1 Tergum 8 with a small median lobe ( Fig. 15 ) ……………………………………………………… 2

1’ Tergum 8 unmodified ( Fig. 1 ) …..………………. 6

2 Aedeagal sac tubular, gradually tapered; basolateral area of sac with a pair of spiny patches ( Figs. 6 , 26 ) ………………………………………… 3

2’ Aedeagal sac with additional lobes; basolateral area of sac without spiny patches ( Figs. 2 , 17 ) ………………………………………………...…… 5

3 Largest spines on aedeagal sac form a transverse subapical row ( Fig. 26 ) ………………….... uchidai

3’ Largest spines on aedeagal sac form irregular longitudinal rows ( Fig. 6 ) ………………………. 4

4 Largest spines on aedeagal sac located nearer base of sac; spines become smaller nearer apex ……………………………………………………. lisu

4’ Largest spines clustered near tip of aedeagal sac ( Fig. 6 ) ……………………………………….. huang

5 Largest aedeagal spines form transverse row more or less in center of apical spine patch ( Fig. 2 ) …………………………………………….. doisuthep

5’ Largest aedeagal spines form transverse row at basal margin of apical spine patch ( Fig. 17 ) …………………………………………………. lobata

6 Aedeagal armature entirely of small to moderate size spines ………………………….…………….. 7

6’ Aedeagal armature includes large black cultriform spines ……………………………….. 10

7 Everted aedeagal sac with one or more membranous lobes ………………………………. 8

7’ Everted aedeagal sac tubular, without extra lobes ……………………………………………………… 9

8 Mesal area of tergum 9 with two small irregular rows of sensilla between lateral patches; mesal section of aedeagal sac with a single finger-like lobe …………………………………………….... lao

8’ Mesal area of tergum 9 without median sensilla between lateral patches; mesal section of aedeagal sac with a pair of finger-like lobes ……… imitatrix

9 Major aedeagal armature on everted sac restricted to patch covering less than half sac length; basal half of sac constricted between sac apex and tube …………………………………………..….. simplex

9’ Major aedeagal armature on everted sac covers almost entire sac length ( Fig. 13 ); base of sac constricted but sac gradually widens from base to subapical area ……………………….…….. hubleyi

10 Subapical area of everted aedeagal sac bearing a complete single or double ring of large, black, cultriform spines (Figs. 21,39); tergum 9 with two large patches of sensilla, or a single fused median patch ( Fig. 20 ) …………………………………... 11

10’ Subapical area of everted aedeagal sac bearing an incomplete ring of large, black, cultriform spines; tergum 9 with median sensilla between lateral patches …………………………………………... 13

11 Almost entire lateral surface of aedeagal sac and apex of tube covered with a continuous spine patch ( Fig. 39 ); largest aedeagal spines form a complete subapical double ring; sensilla patches of tergum 9 widely separated ( Fig. 38 ) …… wieng

11’ About half of aedeagal sac surface covered with continuous spine patch ( Fig. 19 ); largest aedeagal spines form a subapical single ring; sensilla patches of tergum 9 narrowly separated or united at base ( Fig. 20 ) ………………………………….. 12

12 Sensilla patches of tergum 9 completely divided; membranous lobe of aedeagal sac not covered with spines ……………………………… sertispina

12’ Sensilla patches of tergum 9 united basally ( Fig. 20 ); membranous lobes of aedeagal sac covered with spines ( Fig. 21 ) …………………… occipitalis

13 Everted aedeagal sac tubular, without membranous lobes; tergum 9 with a single median sensilla patch …………………… malayana

13’ Everted aedeagal sac bulbous and bearing a small finger-like membranous lobe; tergum 9 with median sensilla grouped in two irregular rows ………………………………………… vietnamensis

Figures

Figs. 14-15. Phanoperla lao. 14. Head and pronotum. 15. Female terminalia.

Figs. 1-3. Phanoperla doisuthep. 1. Male terminalia, dorsal. 2. Fully everted aedeagus, lateral. 3. Aedeagal sac apex.

Figs. 4-7. Phanoperla huang. 4. Head and pronotum. 5. Male terminalia, dorsal. 6. Aedeagus, oblique ventrolateral. 7. Female terminalia.

Figs. 24-29. Phanoperla uchidai. 24. Head and pronotum. 25. Male terminalia, dorsal. 26. Aedeagus, lateral. 27. Aedeagus, dorsal. 28. Aedeagus, ventral. 29. Female terminalia.

Figs. 16-18. Phanoperla lobata. 16. Male terminalia, dorsal. 17. Fully everted aedeagus, lateral. 18. Fully everted aedeagus, dorsal.

Figs. 12-13. Phanoperla hubleyi. 12. Male terminalia, dorsal. 13. Fully everted aedeagus, lateral.

Figs. 19-23. Phanoperla occipitalis. 19. Head and pronotum. 20. Male terminalia, dorsal. 21. Aedeagus, lateral. 22. Female terminalia. 23. Egg.

Figs. 37-41. Phanoperla wieng. 37. Head and pronotum. 38. Male terminalia, dorsal. 39. Aedeagus, lateral. 40. Aedeagus, ventral. 41. Aedeagus, dorsal.