10 PEOCEEDINGS OF THE NATIONAL MUSEUM vol.68 



18. Most specimens with a decidedly yellowish wash — arsinoe, new species, p. 31 



persephone, new species, p. 11 

 Xanthippe, new species, p. 14 



— Rarely yellowish commissuralis Stal, p. 11 



melite, new species, p. 32 



19. Species from 4 to 5 mm. in length cymba McAtee, p. 21 



— Smaller species 20 



20. Lateral emarginations of eighth sternite decided (fig. lOU). 



euphrante, new species, p. 12 



— Lateral emarginations of eighth sternite slight (figs. 101, 103). 



pomaria, new species, p. 29 

 gillettei Van Duzee, p. 23 



21. Outer clasper with a strong outwardly and posteriorly directed bristle near 



outer basal angle (fig. 54) ; aedeagus as in figures 56-58. 



gillettei Van Duzee, p. 23 



— Outer clasper without such a bristle : 22 



22. Lower posterior angle of ninth segment developed as a more or less promi- 



nent, downwardly directed, tubercle or process, which is heavily pig- 

 mented apically, and generally can be seen without disection ; outer 

 claspers usually black apically 23 



— Lower posterior angle of ninth segment not so developed ; outer claspers 



usually not black apically 25 



23. Outer claspers heavily pigmented apically (five alternatives). 



Aedeagus as in figures G8-69 melite, new species, p. 32 



Aedeagus as in figure 23 persephone, new species, p. 11 



Aedeagus as in figures 45^6 lancifer, new species, p. 19 



Aedeagus as in figures 64-05 athene, new species, p. 31 



Aedeagus as in figure 67 andromache, new species, p. 32 



— Outer claspers not heavily pigmented apically 24 



24. Lower posterior angle of ninth segment developed as a long falcate, acute 



and heavily pigmented process (fig. 59) ; aedeagus as in figures Gl-62; 

 outer claspers not black apically pomaria, new species, p. 29 



— This process not long and falcate (three alternatives). 



Aedeagus as in figure 66 arsinoe, new species, p. 31 



Aedeagus as in figures 29-30 ariste, new species, p. 13 



Aedeagus as in figure 47 niobe, new species, p. 20 



25. Apices of inner claspei's directed inwardly, usually to be seen protruding 



on median line between outer claspers (fig. 40) ; aedeagus as in figures 

 41-42 flavomarginata Gillette and Baker, p. 17 



— Apices of inner claspers directed outwardly, usually visible laterally between 



outer claspers and ninth segment 26 



26. Species from 4 to 5 mm. in length ; aedeagus as in figures 51-52. 



cymba McAtee, p. 21 



— Smaller species 27 



27. One or both posterior angles of ninth segment produced posteriorly 28 



— Neither angle pi-oduced 29 



28. (Three alternatives). Lower posterior angle of ninth segment developed 



as a prominent posteriorly directed tooth (fig. 24) ; aedeagus as in figures 

 29-30 euphrante, new species, p. 12 



— Upper posterior angle of ninth segment distinctly angulate produced, hind 



margin emarginate (fig. 35) ; aedeagus as in figure 36. 



ariadne, new species, p. 14 



