1986] 
Wiggins & Richardson — Onocosmoecus 
197 
Fig. 7. Onocosmoecus unicolor (Banks), female genitalia (specimen from Kam- 
chatka, U.S.S.R.; Syntype of O.flavus (Martynov)): a, ventral; b, lateral. 
we find little distinction in this character and considerable variation 
in our material generally (cf. Figs. 2 and 4). The five spines of the 
parameres, offered as a diagnostic character for O. tristis by Banks, 
have little value in view of the wide variability in number, size and 
arrangement in our material of the unicolor complex. The three 
specimens in the type series show slightly different degrees of pig- 
mentation of the corneous points of the fore wing. 
Although Ross (1938) designated both lectotype male and iectoal- 
lotype female for O. tristis, there is no male specimen bearing a 
lectotype label, and it must be concluded either that the specimen 
was not labelled, or that the label or labelled specimen has been lost. 
Since among the three remaining specimens of the type series there 
is only one male, that specimen is here designated lectotype, an 
assignment which would of course lapse should Ross’ lectotype be 
found. 
O. coloradensis (Ulmer). In the original description Ulmer 
offered no diagnostic characters for separating O. coloradensis from 
closely related forms, but he later commented in a re-description of 
O.flavus (Ulmer 1927: 6) that his O. coloradensis was the same as 
Asynarchus tristis Banks, the genital appendages resembling in turn 
those of O. flavus Martynov. Diagnosis on the basis of only two 
spines on each paramere was later proposed by Banks (1943), who 
