478 U. S. NATIONAL MUSEUM BULLETIN 216 



southern British Columbia to central California. It is adult from 

 early spring to early fall. Damp woods with undergrowth is the 

 usual habitat. 



18. Odontocolon atripes (Rohwer) 



Odontomerus atripes Rohwer, 1913, Proc. U. S. Nat. Mus., vol. 45, p. 358; d\ ?. 

 Lectotype (hereby selected): 9, Franconia, N. H. (Washington). 



Male: Front wing 3.7 to 7.7 mm. long; first flagellar segment about 

 1.15 as long as second; punctures on mesoscutum moderately sharp, 

 separated by about 1.6 their diameter; propodeal teeth about 0.65 

 as long as their basal width; punctures on hind femur moderately 

 strong and close, sparser near lower edge, where they are separated 

 by about 1.5 their diameter; second segment of middle tarsus about 



3.0 as long as deep; fifth segment of hind tarsus about 1.15 as long as 

 second segment; second tergite subpolished, a little mat and longi- 

 tudinally rugulose basally, its punctures small, evenly distributed, 

 separated by about 0.4 the length of the hairs. 



Black. Labrum fulvous to blackish; palpi and tegula light brown 

 to blackish; front and middle femora and second trochanters dusky 

 fulvous to blackish; front and middle tibiae and tarsi fulvous to dark 

 brown; hind second trochanter, extreme base of hind femur, and nar- 

 row apex of hind tibia and of segments of hind tarsus, brown; wings 

 faintly infuscate. 



Female: Front wing 4.5 to 9 mm. long; flagellum with about 36 

 segments, its first segment about 1.50 as long as second; head about 



1.01 as wide across temples as across eyes; punctures on temple moder- 

 ately coarse, separated by about 1.4 their diameter; thorax about 

 2.40 as long as high; upper 0.3 ± of pronotum with moderately coarse 

 punctures that are separated by about 3 times their diameter; trough 

 of pronotum with a row of about 10 short, strong transverse ridges, the 

 row a little above center of the trough (an unusual feature) ; mesoscutal 

 punctures small, rather weak, separated by about 5 times their 

 diameter; mesepimeron with hairs all over but sparser below; meta- 

 pleurum rather strongly rugosopunctate; petiolar area about 0.60 

 as long as combined areola and basal area; propodeal teeth about 

 0.65 as long as their basal width; hairs in first lateral area sparse, 

 their sockets separated by about .1.5 the length of the hairs; hind 

 femur about 1.92 as long as deep, the punctures on its upper half 

 rather coarse but weak, closely spaced, just below the middle a little 

 sparser, on lower 0.4 ± of femur very sparse, separated by about 5 

 times their diameter; second segment of middle tarsus about 1.45 

 as long as deep; fifth segment of hind tarsus about 1.8 as long as 

 second; second tergite polished, a little rugulose basally, its punctures 

 very small, separated by about 3 times the length of the hairs; ovi- 

 positor sheath about 1.35 as long as front wing. 



