136 ENTOMOLOGICAL NEWS. [September, 



rable by this character. The typical insperata has been in my 

 collection from its first description, but the great mass of the ex- 

 amples were referred to dubia without a suspicion. There are 

 before me now forty male and twenty female insperata, and ten 

 male and sixteen female dubia. By an examination of this series 

 it is easy to see the males of these two species cannot in every 

 case be separated by the ventral characters — that is to say, the 

 writer cannot do it. The genital organs are usually sufficiently 

 distinctive, but to examine every specimen in this way is labori- 

 ous. The claspers in this species vary greatly in the develop- 

 ment of some of the parts, but in all cases observed always retain 

 the same pattern. As to the females, the ventral characters ap- 

 pear to be identical ; the last ventral in each is deeply arcuately 

 emarginate, differing from that oificsca, which is either transverse 

 at the apex, or scarcely narrowed at its middle; the genitalia, 

 while morphologically different, are yet so similar as to be of 

 little practical avail to the collector. The two species are, how- 

 ever, readily separated by a character of insperata not heretofore 

 observed, or at least not recorded (unless insperata should prove 

 to be a synonym), namely, the hairiness of the head. 



In the males there is conspicuous tuft of long yellow hairs on 

 the front near each eye connected by a line of shorter hairs, which 

 appear to be somewhat deciduous, and in some old examples are 

 nearly lost. In the females the tufts of hairs near the eyes are 

 usually shorter, and in many old specimens may, without care, 

 escape observation, while the connecting line is scarcely present, 

 except in immature or very recent examples. 



The females were obtained years ago from two exchanges, la- 

 beled cephalica Lee, a species described as having lo-jointed 

 antennae and a hairy head, but placed by Dr. Horn in his recent 

 monograph as a race oi fiisca. As insperata is quite variable in 

 the ventral characters of the male as stated above, it seems prob- 

 able it may be Dr. LeConte's cephalica, a matter that might easily 

 be settled by examining the genitalia of the type, a male, which 

 probably still exists in Dr. LeConte's collection. In case they 

 prove to be different, cephalica will likely be rehabilitated as a 

 species and grouped with iyisperata. 



L. fraterna Harris. — This species is abundant here, when its 

 locality is found; last season I took near two hundred examples 

 in a couple of nights' collecting. The figure given by Professor 



