278 EDWARD NORTON. 



" S . Body black, witli large crowded punctures; antennae, first and 

 second joints yellow; nasus hardly emarginate, with a lateral whitish 

 spot; thorax, with the posterior margin of the collar, Avhite; pleura 

 •with a white spot on the anterior upper part; wings tinted with fuli- 

 ginous, nervurcs black; carpal spot waxen-yellow, tergum with a di- 

 lated white band extending to the lateral sutures; feet white, a little 

 varied with yellowish at the tips of the joints, thighs black at base be- 

 neath. 



$ . Anal segments white ; posterior coxa) at base black ; posterior 

 thighs in the middle and their tibite at tip black." 



United States. 



The male not seen. 



One female from Elaine agrees with the above description. The scu- 

 tellum is yellow; there is an indistinct pale band on the edge of each 

 segment of tergum, a black band in the middle of all the femora, in- 

 terrupted in the anterior pair before; the coxie, apex of hinder tibia) 

 and of each tarsal joint bhick. 



2G. M. intermedius. 



AUanius inienncdius, Norton, Bost. Jour, vii, 1R60, 242, 12. 

 Macrophya intermedius, Norton, Bost. Proc. ix, ITS. 

 Black; base of antennee, mouth, tegulre, collar, seutel, basal plates, spot on 

 pleura and legs mostly yellow, sometimes a rufous band on fourth segment of 

 tergum. Length 0.30. Br. wings 0.60 inch. 



9 . Body shorter than M. ceshis, stout, black ; head wide, densely 

 punctured, eyes sepai"ated ; antenna; short, compressed, the two basal 

 joints pale beneath; nasus wide, incurved; nasus and mouth beneath, 

 tegulaj, collar, seutel, basal plates and a spot on pleura yellow-white; a 

 rufous band (sometimes wanting) on third segment of tergum ; legs 

 yellow, coxte all yellow, the apex of hinder femora, of their tibitx) and 

 of all their tarsi black ; wings faintly clouded toward apex ; lanceolate 

 cell with short cross line or closed. 



% . The male exactly resembles female, except that the coxje are 

 mostly black. The anteniux) are stouter and more compressed, tergum 

 of one color. 



Connecticut, Massachusetts, Kansas. 



This differs from M. cesfus in its white cox;\3 and femora without 

 bands. Those with a rufous band on abdomen probably belong to 

 next species. 



