226 U. S. NATIONAL MUSEUM BULLETIN 216 



under side of scape, lower 0.6 of propleurum of male, large hind cor- 

 ner of pronotum (extending forward more than half its length), sides 

 and apex of scutellum, and postscutellum, ivory white; flagellum 

 tinged with brown beneath; tegula ivory white, subapically fulvous; 

 lower part of female propleurum tinged with fulvous; thoracic sterna 

 fulvous, the mesosternum tinged with ivory, especially in male; 

 mesopleurum fulvous, its subtegular ridge and a spot or tinge on 

 upper part of prepectus ivory white and with a blackish transverse 

 band just below subtegular ridge; disc of scutellum fulvous to black; 

 metapleurum fulvous ; pleural areas of propodeum more or less fulvous ; 

 coxae fulvous, the front and middle coxae apically whitish; trochan- 

 ters pale fulvous tinged with ivory; femora fulvous, apically ivory; 

 front and middle tibiae ivory on the basal 0.45 ±, the rest fulvous 

 or in the case of the middle tibia weakly infuscate; front and middle 

 tarsi stramineous, the fifth segment of middle tarsus mostly fuscous; 

 hind tibia and tarsus whitish, the basal 0.22 ± and apical 0.36 ± of 

 the tibia and most of the fifth tarsal segment blackish. 



Type: 9, Six Mile Creek, Ithaca, N. Y., July 26, 1939, P. P. Babiy 

 (Washington, USNM 63660). 



Paratypes (18 cf, 209): From British Columbia (Hope and Robson) ; 

 Maryland (Takoma Park); Massachusetts (Holliston); New York 

 (Bemus Point, Greene Co., Ithaca, Poughkeepsie, and Shokan) ; 

 North Carolina (Wake Co.) ; Nova Scotia (Baddeck Forks) ; Ontario 

 (Bells Corners, Gananoque, and "Merivale") ; Pennsylvania (Pitts- 

 burgh) ; Prince Edward Island (Brackley Beach in Canadian National 

 Park and Dalvey House in Canadian National Park) ; Quebec (Lac 

 Mercier, La Trappe, St. Hilaire, and Sweetsburg) ; Rhode Island 

 (Westerly); and Wisconsin (Polk Co. and Sawyer Co.). 



Collection dates are rather evenly distributed from June 23 to 

 August 18. 



Our own collections and the general distribution of the species indi- 

 cate that its habitat is moist deciduous woods. 



This species is transcontinental in moist deciduous woods, in the 

 Transition and Upper Austral zones. Adults are mostly in July and 

 early August. 



28. Exochus armillosus, new species 



Figures 189,o; 193,i 



Front wing 5.3 to 6.0 mm. long; combined face and clypeus about 

 1.06 as high as wide, the face rather strongly convex in a vertical 

 direction, a little less strongly convex horizontally; clypeus of female 

 in profile distinctly flattened, of male weakly bulging; punctures on 

 face and clypeus strong, moderately coarse, on face subadjacent, on 

 clypeus rather sparse; apical angle of interantennal process about 95 



