tOSriTED STATES NATIONAL MUSEUM BULLETIN 207 



3. Male with costal fold on forewing; shaft of antenna notched at base . Diatomocera (p. 50) 

 Male without costal fold on forewing; antennal shaft not notched . Pseudocabima (p. 53) 



4. Hind wing with vein 3 from the stalk of veins 4-5 Anypsipyla (p. 42) 



Hind wing with vein 3 from the angle of the cell; if sometimes approximate to the stalk 



of veins 4-5 for a short distance, never actually from it 5 



5. Maxillary palpi of both sexes filiform. Male with complete transtilla 6 



Maxillary palpi squamous. Transtilla of male incomplete 8 



6. Male with antennal shaft pubescent. Female with ductus seminalis from near middle or 



towards anterior (closed) end of bursa 7 



Male with antennal shaft shortly ciliate (ciha as long as width of shaft). Female with 

 ductus seminalis from bursa near junction of bursa and ductus bursae. 



EctomyeloiB (p. 43) 



7. Forewing with vein 2 from near outer angle of cell. Male with transtilla weakly sclerotized 



(a thin band or sub-triangulate plate); apical process of gnathos broadly U- 



shaped Myelopsis (p. 40) 



Forewing with vein 2 from well before the angle. Male with transtUla strongly sclero- 

 tized and arched ; apical process of gnathos a simple, stout hook . . Apomyelois (p. 42) 



8. Hind wing with cell moderately long (from a little over to slightly less than one-half the 



length of the wing) 9 



Hind wing with cell short (not over one-third the length of wing). . Protomoerbes (p. 49) 



9. Forewing with vein 2 from near lower outer angle of cell; vein 10 from the cell. Male 



with eighth abdominal segment simple. Female with signum in bursa (a cluster of 

 coarse scobinations) ; a sclerotized plate behind genital opening (on inner dorsal 



surface of ductus bursae) Paramyelois (p. 46) 



Forewing with vein 2 from well before the angle; vein 10 from the stalk of veins 8-9. 

 Male with a pair of ventrolateral hair tufts on eighth abdominal segment. Female 

 with bm^a and ductus bursae simple (membranous throughout, with neither signxmi 

 in bursa nor plate behind genital opening) Pseudodivona (p. 48) 



Venational division D 



1. Normal dark discal spots on forewing at end of cell replaced by a conspicuous white spot 



or Une (obscured only on clarioralis) on discocellular vein. [Male genitalia with 

 costal area of harpe broadly sclerotized and produced at apex; clasper present, 

 erect ; penis armed with numerous, straight spines. Female with signa developed as 

 2 or 3 clusters of strong, slender spines; ductus bursae flattened, strongly sclerotized 

 over most of its length, the sclerotization terminating just before simple genital 



opening] Dioryctria (p. 149) 



No such white spot on discocellular vein 2 



2. Forewing with ridge of raised scales preceding antemedial line 3 



Forewing smooth ; if sometimes with a few roughened scales, no such subbasal ridge. . 4 



3. Forewing with veins 4-5 closely approximate for a short distance from cell. Hind 



wing with cell less than one-fourth the length of wing. Maxillary palpus of male 



in the form of an aigrette Zamagiria (p. 90) 



Forewing with veins 4-5 connate or very shortly stalked. Hind wing with cell slightly 

 less than one-third the length of wing. Maxillary palpus of male subsquamous. 



Anegcephalesis (p. 93) 



4. Male genitalia with uncus and tegumen greatly reduced; uncus a narrow, weakly sclero- 



tized, angulate band. Female with a single signum in bursa, consisting of a small, 



sclerotized plate supporting a very short thomlike spine Peadus (p. 83) 



Male genitalia with uncus and tegumen well developed. Female with signum or signa 

 (if present) otherwise 5 



