250 U. S. NATIONAL MUSEUM BULLETIN 216 



its outer face with a very few punctures, its upper tooth small, its 

 lower tooth smaller than upper tooth (as usual); second lateral area 

 of propodeum with hairs laterally and apicolaterally; front spur of 

 hind tibia about 2.6 as long as wide in male, about 2.5 as long as wide 

 in female; punctures of second tergite moderately small, moderately 

 sharp, absent medially, sublaterally separated by about 2.0 their 

 diameter; male clasper moderately broad, moderately hairy, its apex 

 obliquely rounded from below. 



Black. Face, narrow orbit on lower part of frons, triangular spot at 

 top of eye, cheek, clypeus, mouth parts, large upper hind corner of pro- 

 no turn, tegula, and margin of subtegular ridge, pale yellow; antenna 

 brown, paler below, the scape usually yellow beneath ; front and middle 

 legs of male pale yellow, their femora mostly pale fulvous except api- 

 cally; front and middle legs of female light fulvous, their coxae and 

 femora apically and basal half of their tibiae pale yellow; hind coxa 

 of male fulvous basally, pale yellow apically, of female entirely fulvous; 

 hind trochanters fulvous; hind femur fulvous, in the male broadly 

 pale yellow apically above, in the female sometimes with a small pale 

 yellow area apically above; hind tibia and tarsus yellowish stramine- 

 ous, the tibia tinged with fulvous at extreme base and on sides and 

 bottom, and its apical 0.22 ± fuscous, the fuscous apex shading basally 

 into the fulvous area; hind tarsus brownish at apex; lateral part of 

 second to fourth tergites sometimes yellowish in male, fulvous in 

 female, the pale areas (when present) largest on the third tergite. 



Type: 9, reared from fAncylis comptana on Arctostaphylos, Bar 

 Harbor, Maine, June 20, 1936 (Washington, USNM 63672). 



Paratypes: 2 c?, 19, same data as type (Washington and Townes). 

 9, Holliston, Mass., September 8, N. Banks (Cambridge). 9, Westerly, 

 R. L, August 25, 1946, M. Townes (Townes). 



44. Exochus canidens, new species 



Figures 190, j; 195,g 



Male: Unknown. 



Female: Front wing 3.4 to 4.3 mm. long; combined face and clypeus 

 about 1.25 as high as wide, their convexity uniform, moderately 

 strong; apical angle of interantennal process about 95 degrees; median 

 0.5 of clypeal margin straight; median area of frons very weakly 

 raised and hardly differentiated; mandible moderately long (about 

 0.77 as long as mouth opening is wide), not or faintly twisted, tapered 

 weakly from base for about 0.6 its length, then more strongly tapered 

 to a moderately wide apex, its outer face with a few punctures, its 

 lower tooth small, its upper tooth rather long; second lateral area of 

 propodeum with a few hairs in apicolateral corner; front spur of 

 hind tibia about 2.7 as long as wide; punctures of second tergite 



