N '°- 3622 STRATTOMYIDAE — JAMES 7 



Nemotelus (Camptopelta) species 



One male (Clarke Hall, Jan. 21-31, 1965, malaise trap, W. W. 

 Wirth) apparently represents a new species, but it is unwise to describe 

 it on the basis of a single specimen. In Hanson's (1963) revised key, 

 it traces to N. glaber Loew; it is smaller and more shiny than the 

 mainland material of N. glaber that I have seen. 



Sargus notatus Wiedemann 



This widespread Neotropical species is represented in Dominica 

 by a form that might be recognized at least as a distinct subspecies 

 were it not for the following facts: (1) a disturbing variant occurs, 

 along with the better represented form, in this very restricted geo- 

 graphical area; (2) other faunas, including those of very restricted 

 areas, show too much intergradation occurring in the sampled series. 



Most of the series recorded here from Dominica shoAv the following 

 combination of characters in the females : 



Frons narrow, at narrowest 0.13-0.14 head width; sides of upper 

 frons and vertex glabrous, this area narrow and parallel sided, no 

 wider than transverse diameter of adjacent posterior ocellus; sides 

 of frons anterior to ocellar triangle strongly punctured and rugulose 

 anteriorly; a glabrous stripe, about one-third width of frons, ex- 

 tending anteriorly from anterior ocellus but merging into the punc- 

 tured areas well before the callus; upper margin of callus convex. 

 Pile of frons and vertex black, that of occiput yellowish. Abdomen 

 blue with purplish reflections; apex of first tergum and anterior 

 margin of second more or less yellowish; a small triangle at each 

 posterior angle of second to fourth terga yellow, with whitish pile. 

 Hind femur at base, hind tibia except basal third to half, apical third 

 of hind basitarsus and subsequent tarsomeres, all black, legs otherwise 

 yellow. Color of eye in life dark green with bronzy sheen. 



Females that I have seen from the American mainland have the 

 second tergum yellow except for a spot on each side; on the other 

 hand, females from Grenada, Jamaica, and Puerto Rico have the 

 second tergum as in the Dominican form. This would seem to indicate 

 at least an Antillean subspecies except that the other characters 

 indicated for the Dominican form are all variable; also, two of the 

 Dominican females show some intermediacy in the coloration of the 

 second tergum in that there are suggestions of a pale area comparable 

 to that of the continental form; moreover, some specimens in a series 

 from Barro Colorado Island, Canal Zone, are identical with the 

 Dominican form except for the pale second tergum. 



Males seem to be alike in the island and the continental forms; I 

 can see no differences in the genitalia as well as in other characters. 



