AMERICAN MOTHS OF THE SUBFAMILY PHTCITINAB 



genital opening; if signa present, the ductus bursae very narrow and expanded 

 into a membranous globe shortly before genital opening 57 



Male with maxillary palpus in the form of an aigrette. Female with or without signa; 



bursa and ductus bursae not as above 59 



67. Male genitalia with aedeagus stout; penis armed with a single, long stout spine. Bursa 

 of female genitaUa without signa 58 



Male genitaha with aedeagus very slender; penis unarmed. Bui-sa of female containing 

 two signa developed as opposed, longitudinal bands bearing a row of short stout 

 spines Chorrera (p. 177) 



58. MaxiUary palpus of male minute, filiform. Female without sclerotized plate or plates 



behind genital opening Ambesa (p. 108) 



Maxillary palpus of male squamous (broadly scaled). Female with a pair of elongate 

 sclerotized plates on inner dorsal surface of ductus bursae behind genital 

 opening Catastia (p. 110) 



59. Male with sacculus of harpe slightly produced at apex. Female with ductus bursae of 



genitaha cylindrical; narrow except at genital opening; appreciably longer than 

 length of bursa; sclerotized for haK its length from junction with bursa, the sclero- 



tization longitudinally ribbed Elasmopalpus (p. 172) 



Male with sacculus of harpe not produced at apex. Ductus bursae of female other- 

 wise 60 



60. Hind wing with vein 2 from before but rather near outer angle of cell 61 



Hind wing with vein 2 from well before outer angle of cell 62 



61. Male with penis armed with a single stout spine. Female with ductus brusae of genitaUa 



sclerotized (at least towards genital opening). Forewing with veins 8-9 stalked for 

 less than two-thirds of their lengths. Hind wing with veins 4-5 stalked for approxi- 

 mately one-haK their lengths Salebriaria (p. 115) 



Male with penis unarmed. Female with ductus bm-sae cartilagenous, except at its 

 junction with bursa. Forewing with veins 8-9 stalked for over two-thirds of their 

 lengths. Hind wing with veins 4-5 stalked for over three-fourths of their 

 lengths Quasisalebria (p. 118) 



62. Male genitaha with a strong, straight or curved arm from base of costa of harpe; penis 



imarmed. Female genitaUa with ductus seminaUs from bursa adjacent to jimction 



of bursa and ductus biu^ae (signa present) Adelphia (p. 168) 



Male genitaUa without projecting arm from base of costa of harpe; penis armed with a 

 single strong spine. Female with ductus seminaUs from bursa remote from junction 

 of bursa and ductus bursae (signa present or absent) 63 



63. Male with cornutus on penis a long straight spine, over half as long as aedeagus. Female 



with bursa densely spinose, signa absent; ductus seminaUs from near anterior end of 



bursa Salebriacus (p. 114) 



Male with cornutus on penis a short, curved spine, somewhat less than one-third as long 

 as aedeagus. Female with bursa smooth except for strongly spined signa (and in 

 one species a strongly spined coUar at middle of bursa) ; ductus seminalis from bursa 

 adjacent to one of the signa Ufa (p. 170) 



Venational division C 



1. Hind wing with discocellular vein straight, vertical Homoeographa (p. 135) 



Hind wing with discocellular vein straight, obUque Atheloca (p. 81) 



Hind wing with discocellular vein curved 2 



2. Male with uncus of genitalia more or less spoon-shaped (the lateral margins deeply 



concave at middle). Female with signa present, consisting of 2 or more sclerotized 



disks or series of contiguous, blunt thorns 3 



Male with uncus triangulate or subtriangulate. Female with or without signa; if present 

 not as above 4 



