472 U. S. NATIONAL MUSEUM BULLETIN 216 



ventrally but still moderately dense; second segment of middle tarsus 

 about 1.6 as long as deep; fifth segment of hind tarsus about 1.20 

 as long as second segment; second tergite polished or weakly mat, its 

 basal 0.25 ± more or less rugulose, its punctures small, moderately 

 sharp, separated by about 2.5 the length of the hairs; ovipositor sheath 

 about 1.05 as long as front wing. 



Black. Mandible stained with ferruginous; labrum and palpi 

 fulvous to brown ; tegula reddish brown to blackish ; legs f ulvof errugi- 

 nous, the front and middle tarsi and the hind tibia fuscoferruginous 

 and the hind tarsus blackish; wings faintly infuscate. 



The female is distinct in its small size, black abdomen, fulvoferrugi- 

 nous legs, strong longitudinal wrinkles on metapleurum, and long 

 horizontal wrinkles near lower corner of pronotum. It is most similar 

 to parvum. 



Type: 9, Fish Camp, Calif., July 14, 1948, H., M., G., and D. 

 Townes (Washington, USNM 63726). 



Paratypes: 9, Camino, Calif., June 30, 1948, H., M., G., and D. 

 Townes (Townes). d\ 9, Dardanelle, Calif., July 8, 1948, H., M., 

 G., and D. Townes (Townes). 3cf, 69, Fish Camp, Calif., July 11, 

 12, 14, 15, and 19, 1948, H., M., G., and D. Townes (Townes). 



This species occurs in the Transition and Canadian zones of the 

 Sierra Nevada of central California. 



15. Odontocolon parvum, new species 



Male: Front wing 3.2 to 5.7 mm. long; first flagellar segment about 

 1.15 as long as second; punctures on mesoscutum separated by about 



1.7 their diameter; propodeal teeth about 0.25 as long as their basal 

 width; punctures on hind femur rather weak, moderately dense, be- 

 coming sparser below the middle, near lower edge of femur separated 

 by about 3.5 their diameter; second segment of middle tarsus about 



3.8 as long as deep; fifth segment of hind tarsus about 0.85 as long as 

 second segment ; second tergite with more or less distinct fine rugulos- 

 ity, the rugulosity with a weak longitudinal tendency and obsolescent 

 on apical 0.15± of the tergite; punctures on second tergite very fine, 

 obscured by the rugulosity; hair sockets on second tergite separated 

 by about 0.5 the length of the hairs. 



Black or blackish brown; labrum fulvous; palpi fulvous or brown; 

 tegula light to dark brown; legs fulvous, or sometimes fulvous brown 

 or brown, the hind coxa and femur being a little darker than the rest; 

 hind tarsus and upper half of hind tibia infuscate; wings subhyaline. 



Female: Front wing 4.8 to 6.3 mm. long; flagellum with about 30 

 segments, its first segment about 1.42 as long as second; head about 

 0.98 as wide across midlength of temples as across eyes; punctures on 

 temple very small, separated by about 3 times their diameter; thorax 



