UNITED STATES NATIONAL MUSEXnH BULLETIN 207 



27. Male genitalia with divided element of incomplete transtilla strongly sclerotized, gnathos 



absent; female with ductus bursae partially sclerotized Gabinius (p. 84) 



Male genitalia with transtilla absent, gnathos well developed and with apical process 

 a strong hook; female with ductus bursae membranous throughout. 



Ceracanthia (p. 85) 



28. Male genitaha with transtilla a sinuate sclerotized band involved with gnathos; female 



with bursa small, membranous and ductus bursae much longer than bursa, signum 

 (if present) a small granulate patch or small plate with single miaute thorn, genital 

 opening narrow (the ductus bursae never expanded into a widened opening) ; if bursa 

 sometimes large and ductus bursae proportionally shorter {Bampylla), collar of 



eighth segment modified 29 



Male genitalia without transtUla or, if present, otherwise; female genitalia never as 

 above in all details 31 



29. Forewing with veins 4-5 approximate for a short distance from cell; hind wing with 



vein 2 from well before lower outer angle of cell 30 



Forewing with veins 4-5 stalked; hind wing with vein 2 from near outer angle of cell. 



Dasypyga (p. 69) 



30. Female with ductus seminahs from ductus bursae Promylea (p. 65) 



Female with ductus seminalis from bursa copulatrix Rampylla (p. 70) 



(males: venation group D, couplet 8) 



31. Male with transtilla of genitalia complete and strongly sclerotized; or, if incomplete, the 



elements enlarged, strongly sclerotized and modified; when complete not in the 

 form of a squarish plate. Female with a single signum developed as a small, scobin- 

 ate or grantdate cup or patch or (Adanarsa) as a single short, stout thorn; genital 



opening always broad 32 



Male genitalia with transtiUa incomplete or absent. Female with signa or signum, if 

 present, otherwise developed. If transtilla complete then weakly sclerotized or 

 developed as a square plate; and if signum of female a small scobiaate patch {Megar- 

 thria alpha) genital opening narrow 39 



32. Forewing with vein 6 bent towards base 33 



Forewing with vein 6 straight 36 



33. Transtilla ofmale complete, strongly arched and with median area forked 34 



TranstiUa of male complete, but not arched nor with median area forked 35 



34. Antenna of male with shaft unipectinate. Ductus bursae of female very short, less than 



one-half as long as bursa, scobinate-granulate and more or less sclerotized but not 



transversely wrinkled Hemiptilocera (p. 30) 



Antenna of male with shaft pubescent. Ductus bursae of female longer, about half as 

 long as bursa and with strong, sclerotized wrinkling before genital opening. 



Crocidomera (p.32) 



35. Maxillary palpus squamous. Forewing of male with costal fold and a fovea in cell 



slightly beyond base. Eighth abdominal segment with stemite developed as a 

 sclerotized pocket Heras (p.34) 



(male only, female unknown) 



Maxillary palpus filiform. Forewing of male without costal fold or fovea. Eighth 



abdominal segment simple Birinus (p. 36) 



(male only, female unknown) 



36. Male antenna with shaft unipectinate; transtilla incomplete, its elements long, stout with 



their apices broadly and irregularly developed and hooked. Female with a large 

 semicircular sclerotized and scobinate plate on membrane behind genital opening. 



Bertelia (p. 36) 



Male antenna with shaft pubescent; transtilla complete. Sclerotized plate on membrane 



behind genital opening of female, if present, not semicircular 37 



37. Hind wing with veins 7-8 anastomosed for a short distance beyond cell. Male with trans- 



tilla strongly arced but with its median area bearing a smooth narrow crosspiece, not 

 forked. Female with signum a single, short, stout, hooked thorn . Adanarsa (p. 35) 



