458 U. S. NATIONAL MUSEUM BULLETIN 216 



Specimens: 39 (wingless), Wellington, B. C, 1949, Richard Guppy 

 (Townes). d 71 (wings fully developed), Coos Co., Oreg., Feb. 14, 

 1917, W. J. Chamberlin (Cambridge). <? (wings fully developed), 

 McMinnville, Oreg., Aug. 16, 1947, K. M. Fender (Townes). d\ 39 

 (paratypes, the male with fully developed wings, the females wing- 

 less), reared from anobiid larvae in Alnus, Seattle, Wash., Mar. 3, 

 1942 (Washington and Townes). d\ 9 (paratypes, the male wingless, 

 the female with partially developed wings), reared from dead Alnus, 

 Seattle, Wash., Apr. 2, 1942 (Washington). 



This species is in the Vancouveran fauna. It has been reared from 

 an anobiid. 



5. Odontocolon formicoides, new species 



Male type: Wings absent; head and body 4.4 mm. long; head 1.18 

 as wide across temples as across eyes, the temples distinctly flaring 

 behind eyes; punctures on temple very small, separated by about 5 

 times their diameter; second tergite with longitudinal wrinkles on 

 its basal 0.15, the rest smooth and without visible punctures, though 

 with scattered hairs the sockets of which are separated by about 1.4 

 the length of the hairs. 



Head and abdomen beyond first segment blackish brown; antenna, 

 palpi, front and middle coxae, trochanters, tibiae, and tarsi light 

 brown; thorax, hind coxa, femora, and first abdominal segment 

 medium brown, the femora paler at base and apex and the meso- 

 sternum and adjacent part of mesopleurum light brown. 



Female: Unknown. 



Type: cf, among Populus, Picea, and Abies, Snow Bowl at 9,700 

 ft. on Humphreys Peak, Ariz., July 26, 1952, E. O. Wilson (Cam- 

 bridge) . 



III. MELLIPES GROUP 



Body form usually "normal" for the genus but sometimes depressed 

 and elongate; metapleurum and propodeum with very fine to moder- 

 ately coarse punctures, not rugulose but rarely rugulosopunctate; 

 middle tibia of female with a deep, sharp, oblique groove on its 

 posteroventral side; tibiae and tarsi without long erect hairs; hind 

 femur usually with a longitudinal carina on distal side of its ventral 

 tooth, the outline of carina concave or straight in profile; tooth on 

 hind femur about 0.7 as high as its basal width; wings fully developed, 

 the intercubitus about 0.5 to 1.0 as long as second abscissa of cubitus, 

 the ramellus short or absent; first tergite moderately long, without 

 coarse punctures or covered with striae, usually with some irregular 

 longitudinal wrinkling or striae and some fine punctures. 



This group includes most of the genus. We place in it the eighteen 



