142 U. S. NATIONAL MUSEUM BULLETIN 216 



29, Hundred Mile House, B. C, June 29 and July 4, 1938, G. S. 

 Walley (Ottawa). 9, Estes Park, Colo., July 11, 1934, A. L. Melander 

 (Cambridge). 9 (lectotype), Colorado (Philadelphia), cf, "Klondike 

 Basin," Maine, July 7, 1939 (Townes). 59, Aweme, Man., June 2, 

 1936, June 22, 1924, and June 27, 1925, R. D. Bird (Ottawa, Townes, 

 and Washington), d", Riding Mt. Park, Man., June 5, 1930, J. Mc- 

 Dunnough (Ottawa). 9, Newcastle, N. B., June 18, 1914, F. M. 

 McKenzie (Ottawa). 9, Waweig, N. B., June 20, 1938, T.N. Freeman. 

 (Ottawa), d 1 , Franconia, N. H. (Philadelphia). 9, Baddeck, N. S., 

 June 25, 1936, T. N. Freeman (Ottawa), cf , Mer Bleue, near Ottawa, 

 Ont., May 29, 1937, J. McDunnough (Ottawa). 9, Nominingue, 

 Que., June 13, 1941, O. Peck (Ottawa). 9, Waskesiu Lake, Sask., 

 July 7, 1939, A. R. Brooks (Ottawa). 



This species is transcontinental in the Canadian zone. Most adults 

 have been taken in June. 



12. Bothromus, new genus 



Figure 176,b 



Front wing 4.0 to 6.2 mm. long; body with medum-sized, moder- 

 ately dense punctures; combined face and clypeus weakly convex, 

 the upper margin of face produced medially as a very short broad 

 point over bases of antennae; frons smooth, without a median carina 

 or process; temple moderately convex; occipital carina moderately 

 strong above, weak laterally, and lacking below; cheek about 0.8 as 

 long as basal width of mandible; mandible short, moderately broad, 

 tapered toward apex, its teeth moderately broad, the lower tooth a 

 little smaller than upper tooth; labrum just visible beyond margin 

 of clypeus; flagcllum rather short, a little thickened medially, more 

 slender apically; upper margin of pronotum not swollen; propleurum 

 weakly convex; sub tegular ridge rounded, in rear view deeply hollowed 

 out so that it appears to be a thin, curved-over flange; scutellum 

 convex, without a lateral carina or with a weak lateral carina basally; 

 areolet absent; intercubitus vertical, separated from second recurrent 

 by 0.3 its length; nervulus postfurcal by about 0.3 its length; ner- 

 vellus broken near its lower 0.3; dorsal end of prepectal carina near 

 front edge of mesopleurum, at level of midheight of pronotum; ster- 

 naulus not distinct; metapleurum with coarse punctures all over; 

 apical half of propodeum sharply declivous, the apex of its area 

 dentipara produced as a broad weak tooth; propodeum completely 

 carinated except that costula is absent and median basal area and 

 areola are confluent; propodeal spiracle short oval; legs moderately 

 stout; first trochanter of front and middle legs almost completely 

 fused with its femur; spurs of middle tibia long and slender, the front 

 spur a little shorter than hind spur; tarsal claws apparently simple; 



