57 
Male Genitalia. Characterized by the harpe, which is very broad 
basally, tapering to a fine point rather like a pruning-knife or a Phrygian 
cap. The apex of the clasper is variable, being either rounded, truncate, 
or pointed; generally a reduced pollex is present; the uncus is thin and 
moderately long, the juxta usually strong, and the aedoeagus heavily 
scobinate apically. 
The following species fall here: bicarnea Gn., flavotincta Sm., tenuicula 
Morr. ( treatii Grt.) (rather aberrant, the clasper being without pollex), and 
opacifrons Grt. This latter species is only placed here for lack of a better 
place; it is very closely allied to the European subrosea Steph. (vide Pierce, 
op. cit., PI. XVIII). 
Pachnobia Gn. 
1852, Sp. Gen. Lep. V, 342 (type, tecta Hbn.). 
Differs from Graphiphora in the entirely hairy and rough vestiture of 
palpi, front, and thorax, with no thoracic tufting. The eyes are smaller, 
partly concealed, and generally lashed. 
Figure 37. Male genitalia of Pachnobia teqta Hbn. 
This genus may be very conveniently retained to include a few semi- 
arctic species. Besides tecta Hbn. ( carnea Auct.) the writer would place 
here wockei Moesch., scropulana Morr. ( moeschleri Bang Haas), and 
okakensis Pack. ( cinerea Staud.). 
The general type of genitalia is very similar to that of Graphiphora , 
but the species vary considerably in the minor details. In the clasper a 
pollex is present and a corona absent in all the species, but in okakensis the 
apex of clasper is pointed and in the others rounded. In tecta the uncus is 
very broad basally, much less so in okakensis, and in the other two narrow 
and strap-like; the shape of the juxta and the armature of the vesica are 
also variable, but such characters are probably specific rather than generic. 
A further point which might be mentioned is that in certain specimens 
of scropulana and okakensis the tibial spilling is very heavy and irregular 
and there appears to be a partial fourth row of spines; this was not present 
