118 
Psyche 
[Sept. 
pale ; apical part of genital prongs divided by a con- 
striction, the outer part slender toward tip ; the fifth 
dorsal segment projecting in a fairly broad lobe. 
annulipes. 
Hind femora without a band near base, but often an 
elongate spot not reaching across 2. 
2. Hind femora (and others) with upper side black and 
lower edge with a dark line, sometimes incomplete ; 
setae wholly black except extreme base of first seg- 
ment; produced part of fifth dorsal segment broad 
behind, lightly rounded ; last section of genital 
prongs very long and slender 3. 
Hind femora (and others) with upper side partly or 
wholly dark, lower without dark; tip of produced 
part of fifth dorsal segment not so broad; last sec- 
tion of genital prongs often shorter 5. 
3. Base of fore wings plainly yellowish, wings pallid; 
hind corners of head yellow ; femora with dark streak 
above and below; last section of genital prongs 
scarcely, if at all, scabrous above flavescens. 
Base of fore wings not plainly yellowish, but more or 
less darkened 4. 
4. Base of fore wings plainly black, and general surface 
and veins darkened ; head black except a pale dot on 
each boss and on bases of V-mark; femora almost 
wholly black, a pale streak on side toward end ; api- 
cal part of prong scabrous and as long as in flaves- 
cens; setae black nigrescens. 
Base of wings not so dark, head with hind corners yel- 
lowish as in flavescens ; wings and veins almost as 
dark as in americana; at least basal half of setae pale 
yellowish ; apical part of prongs quite short 
abbreviata. 
5. Apical part of prongs almost as long as in flavescens 
and not scabrous above; setae almost wholly pale, 
scarcely any dark on abdomen; wings an even dull 
yellowish brown, no pale base tristis. 
Apical part of prongs much shorter, often scabrous 
above, setae with only a few joints toward base 
pale 6. 
