182 UNITED STATES NATIONAL MUSEUM BULLETIN 207 



24. Hind wing with cell one-third the length of wing Edulica (p. 271) 



Hind wing with cell approximately half the length of wing 25 



25. Penis of male armed with two stout thornlike cornute; signa of female consisting of two 



large, opposed plates armed with long stout spiaes, a scattering of similar spines 

 between the plates, and a band of shorter spines at jimction of bursa and ductus 



bursae Adelperga (p. 187) 



Penis of male smooth or armed only with weak spines or sclerotized wrinklings; signa of 

 female (if present) otherwise 26 



26. Forewing with vein 2 from lower outer angle of cell 27 



Forewiag with vein 2 from before the angle 28 



27. Forewing with veins 2 and 3 closely approximate at base; males with strong costal fold on 



forewing, eighth segment with paired ventrolateral hair tufts, transtilla incomplete. 



Cassiana (p. 212) 



Forewing with veins 2 and 3 connate; male without costal fold, eighth abdominal segment 



without hair tufts, transtilla complete Rioja (p. 267) 



28. Hind wing with veins 7 and 8 anastomosed for most of their lengths beyond cell .... 29 

 Hind wing with veins 7 and 8 approximate, contiguous or anastomosed beyond cell ; but if 



anastomosed, then for less than two-thirds the length of vein 7 31 



29. Forewing with vein 10 stalked with 8-9 Cayennia (p. 267) 



Forewing with vein 10 from the cell, separated at base and divergent from stem of 8-9 . 30 



30. Male forewing with costal fold; eighth abdominal segment of male simple; female genitalia 



with ductus seminalis from bursa between signum and ductus bm^ae . Selga (p. 265) 

 Male forewing without costal fold; eighth abdominal segment of male with paired ventro- 

 lateral hair tufts; female genitaUa with ductus seminalis from anterior end of 

 bursa Anderida (p. 211) 



31. Male genitalia with apical process of gnathos greatly reduced and fused into subanal 



plate; female genitaha with signum a single, long, stout, curved spine. 



Lascelina (p. 264) 



Male genitaha with apical process of gnathos well developed; female genitalia with sig- 



nimi (if present) otherwise 32 



32. Male genitalia with apical process of gnathos developed as a stout, elongate hook; female 



genitalia with ductus seminalis from ductus bursae 33 



Male genitalia with apical process of gnathos usually flanged or lobed, frequently bifid, 

 sometimes fused or partially fused, if completely fused (Cahela, Rumatha) consider- 

 ably enlarged basally ; female genitaUa with ductus seminalis from bursa copulatrix. 



40 



33. Labial palpi porrect 34 



Labial palpi obhque or upturned 38 



34. Eighth abdominal segment of male with ventrolateral hair tufts and lateral eversible 



lobes 35 



Eighth abdominal segment of male without tufts or lobes, ventrolateral hair tufts only 

 (no eversible lobes) 36 



35. Maxillary palpus of male filiform Macrorrhinia (p. 190) 



Maxillary palpus of male in the form of an aigrette Ocala (p. 191) 



36. Aedeagus of male of nearly even width throughout; female genitaha with ductus bursae 



simple, and ductus seminalis from ductus bursae near its middle 37 



Aedeagus of male abruptly tapered from base and very slender therefrom; female geni- 

 talia very slender for half its length from genital opening, and thence to bursa 

 swollen and spiraled, armed throughout the spiral ed portion with a line of fine, sharp 

 spines Valdivia (p. 191) 



37. Eighth abdominal segment of male with a pair of short ventrolateral hair tufts; harpe 



with clasper present, developed as a strongly sclerotized, nearly straight hook; female 



genitalia with ductus bursae as long as, or longer than, bursa . . . Eumysia (p. 187) 



Eighth abdominal segment of male without hair tufts; harpe without clasper; ductus 



bxu-sae considerably shorter than bm-sa Protasia (p. 193) 



