No. 22.] HYMENOPTERA OF CONNECTICUT. 493 



23. Wings developed; head not much punctate, usually with 



a few scattered punctures or impressions near the eyes.. 24 

 Wings rudimentary; scutel arched, not reaching the abdomen 



Baeocharis p. 494 



24. Head lengthened below the eyes, trapezoidal when seen from 



in front Psilophrys p. 503 



Head not lengthened below the eyes, round or oval when 

 viewed from in front .Encyrtus p. 504 



25. Pedicel three or more times as long as it is thick at apex.. 



Litomastix p. 503 



Pedicel not three times as long as it is thick as apex 



Copidosoma p. 498 



Meromyzobia Ashmead. 

 M. maculipennis (Ashmead). Ericydnus maculipennis Ash- 

 mead. 



Male: length 3-3.1 mm.; mostly brownish yellow; head wider 

 than thorax, its surface microscopically shagreened and with a 

 few scattered punctures ; ocelli equidistant, the lateral ones nearly 

 touching the eyes, antennae subfiliform; thorax convex, shining, 

 with sparse microscopic pubesence, pronotum subtriangular, 

 its posterior margin triangularly emarginate, mesopleurae pos- 

 teriorly dark brown; scutel dark brown, twice as long as wide 

 at base, axillae meeting at base, a triangular piece before tegulae 

 honey-yellow, mesothorax blue-black ; legs, except sometimes the 

 mid tibiae outwardly, and the hind femora and tibiae except the 

 basal third of latter, which are fuscous, honey-yellow ; tibial spur 

 of mid legs as long as the first tarsal joint thereof; anterior wings 

 fuscous except two triangular, nearly confluent hyaline spots at 

 the middle, and the basal third, which is hyaline; abdomen ob- 

 long-ovate, as long as the thorax, and blue-black. 



Bred from a wheat stem maggot (Meromyza sp.), and from 

 Chlorops ingrata. 



Rhopus Foerster. 



R. coccois (E. A. Smith). Acerophagus coccois E. A. Smith. 

 U. S. Dept. Agric, Rept. Entomologist, 1880, PI. 24, Fig. 2. 



Female : length .055 mm. ; mostly yellow ; head darkest, funicu- 

 lar joints subequal in length, first and second joints slightly 

 shorter, all increasing in width from first to fifth, club as long 

 as funicle, indistinctly 3- jointed; wings hyaline, veins colorless. 



Listed as an American parasite of the cosmopolitan Pseudo- 

 coccus aceris. 



