AMERICAN MOTHS OF THE SUBFAMILY PHTCITINAE 



Hind wing with veins 7-8 approximate for a short distance from cell. Male transtilla 

 otherwise. Female with signum a single, small, scobinate or granulate, cup-shaped 

 patch 38 



38. Male with apical process of gnathos a stout hook. Female with ductus bursae appreci- 



ably longer than bursa; ductus seminalis from ductus bursae . . Cuniberta (p. 34) 

 Male without projecting apical process, the lateral arms supporting a thinly sclerotized 

 subanal plate. Female with ductus bursae much shorter than bursa; ductus semi- 

 nalis from lobe of bursa near junction of bursa and ductus bursae . Chararica (p. 38) 



39. Male with sternite of eighth abdominal segment developed as a sclerotized pocket. 



Female with signum a small, depressed, granulate-scobinate patch; or, if signum 

 absent, ductus bursae narrow throughout and sclerotized for about one-third of its 

 length from shortly beyond its junction with bursa, the sclerotized portion sharply 



bent over itself Megarthria (p. 86) 



Male with eighth abdominal sternite not developed as a sclerotized pocket. Female 

 with signum (or signa) developed as sclerotized and strongly spined plates or bands, 

 or entirely absent. If signa absent, ductus bursae not as above. If sometimes 

 (Olybria) a single more or less strongly sclerotized band in bursa at junction of bursa 

 and ductus bursae, the band finely serrate or edged with short spines 40 



40. Antenna of male with shaft unipectinate. Female bursa \vith a single strongly spined 



signum Monoptilota (p. 89) 



Antenna of male with shaft pubescent. Female bursa with two signa or none ... 41 



41. Male genitalia with a pair of long, strong, sclerotized arms from the ventrolateral angles 



of uncus; gnathos absent. Female with two signa consisting of stoutly and coarsely 

 spined bands; ductus bursae strongly sclerotized, fattened (ribbonlike). 



Caristanius (p. 97) 

 Male genitalia with uncus otherwise; gnathos present and well developed. Female with- 

 out signa; or, when present, consisting of two strongly spined bands or plates; when 

 signa are present, ductus bursae not as above, if partially flattened and ribbonlike 

 then very narrow 42 



42. Male genitalia with aedeagus expanding to lateral, flanged projections before apex, the 



flanges each bearing a cluster of strong spines. Female with ductus seminalis from 



ductus bursae Stylopalpia (p. 140) 



Male genitalia with aedeagus otherwise, if sometimes spined (Pyla), not flanged before 

 apex. Female with ductus seminalis from bursa copulatrLx 43 



43. Maxillary palpus vestigial 44 



Maxillary palpus squamous, or filiform, or (on some males) in the form of an aigrette . 45 



44. Penis of male unarmed except for a small cluster of very weak, short, slender spines. 



Female with ovipositor strongly sclerotized Telethusia (p. 136) 



Penis of male armed with a single, strong comutus. Female with ovipositor normal (not 

 strongly sclerotized) Phobus (p. 138) 



45. Forewing with some rough (raised) scaling in median area beyond outer border of ante- 



median line, but without subbasal ridge of raised scales Tulsa (p. 134) 



Forewing smooth 45 



46. Fore tibia with a long inner and a short outer claw Acroncosa (p. 174) 



Fore tibia otherwise 47 



47. Hind wing with veins 7-8 distinctly anastomosed for about half their lengths (more than 



the free length of vein 8). Male with apical process of gnathos a broad shield 



without central terminal spine Actrix (p. 139) 



Hind wing with veins 7 and 8 approximate ; if sometimes contiguous or anastomosed be- 

 yond cell, then weakly and very shortly so. Male with apical process of gnathos 

 otherwise 48 



48. Male genitalia with a pair of straight, strongly sclerotized arms [not to be confused with 



similar projections from vinculum in Nephopteryx crassifasciella] projecting back- 

 ward from lower, posterior angles of tegumen. Female with ductus bursae of gen- 

 italia flattened (ribbonlike), waved (twice bent) and sclerotized throughout, the 



