10 THE CANADIAN ENTOMOLOGIST. 



SEVERAL NEW DIPTERA FROM NORTH AMERICA. 



BY D. W. COQUILLETT, WASHINGTON, D. C. 



Family Culicid.e. 



Culex Dupreei, new species.— Female. Near serrattis, but much 

 smaller, the white-scaled median vitta of the mesonotum broader, widening 

 posteriorly where it is wider than tiie brown lateral portion, etc. Black, 

 the bases of antennae, lower part of pleura, the metanotum, basal portion 

 vS venter, coxfp, and femora, yellowish; scales of ]inlpi black, those of 

 iirripiit white, and with a spot of black ones each, side; scales of middle of 

 mesonotum white, those on the sides brown, on the pleura and scutellum 

 white ; scales of abdomen brown, those in the basal angles of the segments 

 and on the venter white ; scales of femora yellowish, those on front side 

 of first two pairs, and on apical portion of upper side of hind ones, chiefly 

 b:ovvn, those of tibiiTe and tarsi brown ; tarsal claws toothed ; wings hyaline, 

 lateral scales of the veins narrow and linear, petiole of first submarginal 

 cell about one-third the length of that cell, hind crpssvein about its length 

 from the .«imall ; length, slightly over 2 mm. 



Male. — Colours as in the female, but the mesonotum nearly covered 

 with white scales ; penultimate joint of palpi considerably dilated, the 

 last joint narrow, front and middle tarsi with one tooth under one of the 

 claws, none under the other, petiole of first submarginal cell nearly as long 

 as the cell. 



Baton Rouge, Louisiana. — A specimen of each sex received from 

 Mr. T- ^V. Dupree, after whom the species is named. Type No. 7340, 

 U. S. National Museum. Mr. Dupree writes that the eggs and larvae of 

 this species are very distinct from those of serratus. A small series bred 

 by Ur. J. B. Smith, at New Brunswick, New Jersey, has also been 

 examined. 



Conchyliastes varipes, new species. — Near musiais, but the last joint 

 of the hind tarsi is brown. Black, the front and hind femora, except their 

 broad apices, the posterior side of the middle femora except their apices, 

 and the stems of the halteres, yellow, the fourth joint of the hind tarsi 

 white ; scales of palpi violaceous, those of the occiput yellowish white and 

 with a patch of violaceous ones on either side ; (mesonotum abraded ; 

 whit scales remain are yellowish white and a few black ones along the 

 middle) ; scales of abdomen violet blue, those on sides of first two 



