PINK BOLLWOEM OF COTTON IN MEXICO. 
63 
basal joint with long black pecten. Face and head light reddish brown with some 
pale iridescent scales. Thorax reddish brown with a sprinkling of black around the 
collar; patagia somewhat lighter brown, unmottled. Forewings darker brown with a 
series of small, ill-defined, black spots along the costal edge from base to apical fourth, 
where there is a larger dash of light ocherous brown ; dorsal edge and apical part of 
wing suffused with darker, blackish brown; the middle of the wing is irregularly 
sprinkled with blackish scales and contains on the cell an ill-defined, round, blackish 
spot, sometimes divided into an upper and lower spot; there is also a smaller spot on 
the base of the cell ; the pattern of the wing is rather vague and there is considerable 
variation in different specimens; in many there is an ill-defined blackish fascia at 
apical fourth just before the light costal dash, but in other specimens this fascia is 
not present and the round dorsal spot is dissolved into several smaller spots. Cilia 
Fig. 9.— Pink bolhvorm: A, right hind leg. B, genitalia of male: u, Uncus; i, tegumen; h, haip: a, 
aedoeagus; s, sacculus. C, genitalia of female: o, Ovipositor; g, genital plate with genital opening; 
db, ductus bursse; ds, ductus seminalis; be, bursa copulatrix. (Busck.) 
light ocherous brown, streaked with blackish. Hindwings dark fuscous, somewhat 
iridescent, lightest toward base; cilia ocherous, terminal and apical parts suffused 
with dark fuscous: vein lc with long, ocherous fuscous hairs on the upper side. 
Abdomen flattened and ocherous above, dark brown laterally with underside suffused 
with black and with ocherous scaling at the joints. Legs (fig. 9, A) blackish fuscous 
with narrow ocherous ambulations at the joints. The abdomen is very similarly 
shaped in the male and in the female and it is exceedingly difficult to distinguish the 
sexes, even in living moths, without dissection or by examination of the frenulum. 
The male genitalia (fig. 9, B) are remarkably small in proportion to the size of the 
species: harpes narrow at base, broadening towards tip; tip strongly haired; a 
cluster of long, heavy, straight spines from inner side, well within the tip; sacculus 
armed on its edge with a row of stout spines; uncus moderately long, broad at base, 
tapering to a point, laterally heavily haired; sedceagus short, stout, with a terminal 
hook. In the female the ovipositor is weakly chitinized, covered with stiff hairs; 
