AMERICAN HYMENOPTERA. 267 



nun ; collar, a spot below, basal plates, apex of abdomen and (some- 

 times) extreme edges of four apical segments yellowish ; abdomen short, 

 cylindrical, a rufous spot on each side of first segment; legs black; 

 tips of coxae, trochanters, base and apex of four anterior femora, their 

 tibiae, posterior tibiae, except at apex, and base of first tarsal joint pale 

 yellow ; tips of the four anterior tibiae and the tarsi brown ; inner claw 

 tooth not as large as outer; apical half of wings clouded, changing in- 

 to smoky yellow, basal half of stigma pale. Under wings with one mid- 

 dle cell, the lower nerve of lanceolate cell of under winu; coincidinir 

 with cross nervure above. 



Var. a. No bands upon edges of segments of tergum. 



Mass., Penn., Md., Til. 



This was first described as an AUantus, because its femora are shorter 

 than is usual in 3Jacroph/a, but they are quite stout, and in form and 

 general appearance this approaches nearer to Macrophi/a than Al- 

 ia nhis. 



Tribe 2.® 



Tribes 2 and 3. Hartig. 

 Lanceolate cell open at shoulder, with short, straight cross line, or rarely closed 



or closed with a separation between the two areas. 

 2. M. pluricinctus. 



Macrophya pluricitictus, Norton, Bost. Proc. ix, 1862, 118. 9 S> 



Black; edge of collar, seutellum and bauds on abdomen white. Length 0.28. 

 Br. wings 0.60 inch. 



9. Body short and stout, black; antennae stout, as in AUantus; 

 clypeus hardly emarginate; face black, palpi partly white, tegulas, 

 edge of collar, spot on the front of seutellum, edge of basal plates and 

 a band at edge of each segment of abdomen white ; tips of all the fe- 

 mora, the four anterior tibia; and tarsi beneath, tips of coxas and the 

 upper side of posterior legs white; the middle of four posterior tibiae 

 encircled with white, extreme tips black ; tarsi partly black. Wings 

 hyaline, stigma while at base; lanceolate cell with short, straight cross 

 line. 



% . The male differs only in having the bauds interrupted on the 

 middle of tergum, and the posterior femora with a white line above and 

 beneath. ^ 



San. Mat., Cal. (Cambr. Mus.) 



Two specimens. The abdomen is short, as in Sdandria. 



■■•■ Hartig here makes two tribes. The second having a straight cross line in 

 the lanceolate cell — the third having the lanceolate cell closed in middle. But 

 some of our species present both peculiarities in different individuals, and 

 others differ in different sexes. The two tribes are here united, but the form 

 of the lanceolate cell is generally si:>ecified in the description. 



