Celyphoma Emeljanov, 1971

Meng, Rui & Wang, Yinglun, 2012, Two new species of the genus Celyphoma Emeljanov, 1971 (Hemiptera: Fulgoromorpha: Issidae) from China, Zootaxa 3497, pp. 17-28 : 18-19

Key to species of the genus Celyphoma Emeljanov, 1971

1. Aedeagus with a pair of simple (unbranched) lateral subapical processes which are blunt at the top, dorsal margins of processes smooth without teeth................................................................................... 2

-. Aedeagus with a pair of lateral subapical processes which are pointed at the top, or two pairs of lateral processes.......... 6

2. Ventral processes long, almost reaching base of phallobase, apex abruptly sharpened. The basal surface of lateral processes finely serrated ( Kyrgyzstan: Naryn region, Issyk-Kul region, Central Tien Shan)............ С. corrugata Emeljanov, 1978

-. Ventral processes shorter, not reaching the base of aedeagus, tapering to apex. The basal surface of lateral processes generally smooth.............................................................................................. 3

3. Ventral processes relatively long, longer than one third length of phallobase....................................... 4

-. Ventral processes relatively short, shorter than one third length of phallobase...................................... 5

4. Aedeagus relatively wide in profile, about 2.4 times longer than widest part at middle ( Kazakhstan; Southeast Kazakhstan)................................................................................... С. atomata Mitjaev, 1971

-. Aedeagus relatively narrow in profile, about 3.0 times longer than widest part near basal third (Southeast Kazakhstan)...................................................................................... С. bogutica Mitjaev, 1995

5. The lateral processes of aedeagus in the basal half slender, apical part thickened and blunted ( Kazakhstan)..........................................................................................С. nigrimontana Emeljanov, 1978

-. The lateral processes of aedeagus gradually tapering to a blunt (rarely sharp) apex (Southeast Kazakhstan)................................................................................................ С. glareosa Mitjaev, 1995

6. Aedeagus with teeth or keels along dorsal margins of apical part of phallobase..................................... 7

-. Aedeagus without such teeth or keels..................................................................... 11

7. Aedeagus with two pairs of lateral processes ( Tajikistan)................................ С. dilatata Emeljanov, 1978

-. Aedeagus with one pair of lateral processes................................................................. 8

8. The teeth or keels on the aedeagus occur along the length of the dorsal margins, from apex of phallobase to apex of the lateral processes............................................................................................ 9

-. The teeth restricted to the dorsal margins of apical part of phallobase, not reaching lateral processes................... 10

9. Aedeagus relatively wide in profile, the widest part wider than one third of length ( Uzbekistan)...................................................................................................... С. karatepica ( Dlabola, 1961)

-. Aedeagus relatively narrow in profile, the widest part narrower than one third of length ( Kyrgyzstan: Naryn region, Issyk-Kul region, Central Tien Shan)....................................................С. coelimontana Emeljanov, 1978

10. Aedeagus relatively narrow in profile, about 3.4 times longer than widest part, and almost straight and parallel-sided. Ventral lobe of phallobase with apical margin emarginate ( Kyrgyzstan)............................ С. dietrichi Anufriev, 2004

-. Aedeagus relatively broad in profile, about 2.8 times longer than widest part, and arcuately curved, expanded beyond the mid- dle. Ventral lobe of phallobase with apical margin angularly protruded ( Kazakhstan)......... C. emeljanovi Anufriev, 2004

11. Aedeagus with one pair of simple, unbranched lateral processes................................................ 12

-. Aedeagus with one pair of branched or two pairs of lateral processes............................................ 15

12. Ventral processes with apex serrated ( Kyrgyzstan)...................................... С. chelifer Lukyanova, 1992

-. Ventral processes with apex sharp, not serrated............................................................. 13

13. Ventral processes short, approximately a quarter the length of phallobase, apex directed apically ( Kyrgyzstan)...........................................................................................С. modestula Anufriev, 2004

-. Ventral processes long, longer than half of phallobase, apex not directed apically.................................. 14

14. Ventral processes almost straight ( Kyrgyzstan)....................................... C. modesta Lukyanova, 1992

-. Ventral processes curved, almost encircling the phallobase near middle (Northwest China)........... C. quadrupla , sp. nov.

15. Aedeagus with two pairs of unbranched lateral processes ( Kyrgyzstan)..................... С. loginovae Anufriev, 2004

-. Aedeagus with one pair of branched processes; or two pairs of lateral processes, the proximal pair of processes branched.. 16

16. Aedeagus with two pairs of lateral processes............................................................... 17

-. Aedeagus with one pair of branched lateral processes........................................................ 22

17. The distal branch of the proximal pair of aedeagal lateral processes in profile long, longer than half length of the proximal branch............................................................................................. 18

-. The distal branch of the proximal pair of aedeagal lateal processes short, much shorter than half length of the proximal branch................................................................................................... 21

18. Aedeagus with relatively broad apex in profile, more than 0.3 times wider than widest part, ventral margin from apex to base of ventral processes deeply concave. Anal tube with lateral margins widely arcuate................................... 19

-. Aedeagus with relatively narrow apex in profile, less than 0.25 times wider than widest part, ventral margin from apex to base of ventral processes almost straight. Anal tube with lateral margins rounded to angular.............................. 20

19. The long branch of the proximal pair of dorsal processes of the aedeagus S-shaped and curved in profile. Ventral processes quite short, shorter than one fifth of phallobase (Southeast Kazakhstan, Junggar–Alatau)...... С. dzhungarica Mitjaev, 1995

-. The long branch of the proximal pair of dorsal processes of the aedeagus gently arcuate. Ventral processes relatively long, about half the length of phallobase (Southeast Kazakhstan)................................. C. obnoxia Mitjaev, 1995

20. Aedeagus more slender in profile, about 3.0 times longer than widest part. Ventral processes long, reaching base of phallobase (Southern Kazakhstan)........................................................... C. karatavica Mitjaev, 1995

-. Aedeagus wider in profile, about 2.2 times longer than widest part. Ventral processes shorter, not reaching base of phallobase ( Kazakhstan; Kyrgyzstan)....................................................... С. fruticulina Emeljanov, 1964

21. Ventral processes with apex drawn and pointed. Anal tube shorter and wider, about 1.5 times longer than widest part (Kyrgyz- stan, Issyk-Kul region, Central Tien Shan).......................................... С. biarmata Chelpakova, 1989

-. Ventral processes with apex blunted. Anal tube narrower and longer, about 2.0 times longer than widest part (Northwest China)................................................................................. С. huangi Mitjaev, 1995

22. The lateral processes of aedeagus cylindrical, not flattened laterally, smooth...................................... 23

-. The lateral processes of aedeagus flattened laterally, irregularly serrated......................................... 25

23. The branches of lateral processes of aedeagus of similar length................................................ 24

-. The distal branch of lateral processes of aedeagus distinctly shorter than the proximal processes ( Kyrgyzstan).......................................................................................... C. gultchense Anufriev, 2004

24. The branches of aedeagal lateral processes shorter than half the length of phallobase, apical parts almost parallel; ventral pro- cesses short, not reaching base of phallobase ( Kyrgyzstan)............................... C. furcata Lukyanova, 1993

-. The branches of aedeagal lateral processes longer than half the length of phallobase, the proximal branch curved with apex directing ventral side; ventral processes long, reaching base of phallobase (Northwest China)........... C. bifurca sp. nov.

25. The distal branch of aedeagal lateral processes relatively thin and long, longer than one third of the proximal branch, the bifur- cations of lateral processes removed from their bases ( Kyrgyzstan, Issyk-Kul region, North Central Tien Shan)....................................................................................... C. issykkulica Chelpakova, 1989

-. The distal branch of aedeagal lateral processes relatively thick and short, shorter than one quarter of the proximal branch, the bifurcations of lateral processes close to their bases ( Kyrgyzstan, North Central Tien Shan).... C. ogusica Chelpakova, 1989