6 PROCEEDINGS OF THE NATIONAL, MUSEUM. vol.63. 



and two females from Europe, determined by Professor Bezzi, agree 

 in genitalia and all other ckaracters with the darker of the North 

 American specimens. The species has a voluminous literature in 

 Europe, and has been reared many times in the United States, always 

 from larvae of moths and butterflies. It is also recorded from 

 Canada. 



The species lays macrotype eggs on the host. 



NEMORILLA PARVA Coquillett. 



Eceorista parva Coquixlett, Revis. Tachin., 1807, p. 100. 



Third antennal joint of female scarcely twice the length of second ; 

 no discal macrocliaetae ; mid tibiae bearing one bristle on outside 

 near middle; palpi yellow. 



Female. — Front 0.292 the head width, the sides bearing only a few 

 short hairs ; face and front gray pollinose ; bucca one-seventh the eye 

 height ; third joint of antennae hardly twice the length of the second ; 

 j)enultimate joint of the arista short ; facial ridges bristly on the low- 

 est fourth; palpi yellow. Thorax black, gray pollinose, marked with 

 three black vittae, the middle one twice as wide as either of the 

 others; three dorsocentral macrocliaetae present; scutellum gray, 

 bearing two long and an intermediate short pair of marginal bristles ; 

 sternopleura with three bristles. Abdomen destitute of discal macro- 

 chaetae, black, gray pollinose with numerous reflecting black spots. 

 Mid tibiae bearing one bristle on the outside near the middle; hind 

 tibiae outwardly subciliate. 



Length 4 mm. 



The single specimen is labeled " Colo. 1793 " and was received from 

 C. F. Baker. No additional material has come to light in 25 years. 



T'yioe.— Female, Cat. No. 3600, U.S.N.M. 



NEMORILLA INSOLENS, new species. 



Second antennal joint nearly as long as the third; three sterno- 

 pleural and three dorsocentral macrocliaetae; two midtibial bristles. 



Front of male very narrow, 0.138, 0.119, 0.105 and in the female 

 0.353, 0.300, 0.324 the head width ; head bulging below, face and front 

 gray pruinose ; facial ridges bristly on the lowest fourth ; bucca one- 

 fifth the eye height ; paraf acial at narrowest part scarcely the Avidth 

 of the third antennal joint; antennae yellow, sometimes blackish at 

 apex, about three-quarters the length of face, third joint in both sexes 

 slightly longer than the second, arista thickened on the basal fourth, 

 the penultimate joint short. Thorax black, gray pollinose, indis- 

 tinctly vittate, with three dorsocentral macrochaetae. Scutellum 

 black with three pairs of long marginal bristles. Sternopleura 

 sparsely haired in female, densely so in male and bearing three bris- 

 tles. Abdomen black, gray pollinose, no distinct pattern in female, 



