98 U. S. NATIONAL MUSEUM BULLETIN 216 



as in figure 331,1; apex of male clasper rather elongate (fig. 338); male 

 eighth and ninth tergites not fused; ovipositor sheath about 1.65 as 

 long as front wing; tip of ovipositor as in A. variatipes (fig. 329, f). 



Male: Black. Clypeus and mandible largely dark ferruginous; 

 pedicel in front, scape in front except at base, palpi, tegula, cuneate 

 mark on upper margin of pronotum extending from hind corner 0.7 

 the distance to notaulus; front coxa, middle coxa except behind, front 

 and middle trochanters, and hind trochanters except for the first 

 trochanter above, white; mesoscutum except for median stripe, scu- 

 tellum, mesosternum and mesepisternum except for prepectus and 

 some of upper part of mesepisternum, and metapleurum centrally, 

 fulvous; front and middle femora white, fulvous above and behind; 

 front tibia light brown, whitish above and anteroventrally; front 

 tarsus whitish, its apex brown; middle tibia light brownish, whitish 

 in front and below, with a faint subbasal brown mark; middle tarsus 

 brown, darker apically; hind coxa and femur fulvous, the femur with 

 a light infuscation apically, its extreme apex whitish; hind tibia in- 

 fuscate, its basal 0.15 and its under side except near apex, whitish; 

 hind tarsus fuscous. 



Female: Black. Clypeus and mandible dull ferruginous; front of 

 pedicel and of upper margin of scape, brownish; palpi, tegula, and 

 cuneate mark on upper margin of pronotum reaching from hind corner 

 about 0.8 the distance to notaulus, white; thorax with a variable 

 amount of fulvous, sometimes with extensive fulvous markings as 

 described for the male, sometimes the fulvous markings reduced, and 

 sometimes without fulvous markings; scutellum fulvous or black, 

 often black; front coxa white, tinged with fulvous basally; front and 

 middle trochanters whitish, the first trochanters fulvous above; front 

 femur fulvous, white in front and with a white spot apically behind; 

 front tibia light reddish brown, with a white stripe in front and above; 

 front tarsus brownish fulvous; middle femur white in front near apex 

 and with a white apical spot behind; middle tibia light brown, stra- 

 mineous below and subbasally; middle tarsus brown; hind coxa 

 fulvous; hind first trochanter fulvous, pale apically; hind second 

 trochanter whitish, fulvous above; hind femur fulvous, subapically 

 infuscate, its extreme apex stramineous; hind tibia dark brown, with 

 a subbasal stramineous streak above and its under side stramineous 

 except near apex; hind tarsus fuscous. 



Type: 9, reared from larva of Enoclerus sphegeus in Pinus lam- 

 bertiana, Yosemite, Calif., Jan. 30, 1938, G. R. Struble (Washington, 

 USNM 63683). 



Paratypes: 9, Bilby, Alta., July 1, 1925, Owen Bryant (Washington). 

 9, Aspen Grove, B. C, June 15, 1933, K. Graham (Ottawa), d 1 , 

 Biological Station, Nanaimo, B. C, June 27, 1920, E. P. Van Duzee 



