378 U. S. NATIONAL MUSEUM BULLETIN 216 



on segments 6 to 8; areolet present or rarely absent; first tergite 2.8 

 to 3.5 as long as wide; first sternite about 0.67 as long as its tergite. 



Black. Apical half of clypeus and most of mandible tinged with 

 ferruginous; palpi white; scape and pedicel whitish on front and 

 lateral sides, the whitish area about 50 percent of their total area, 

 the rest of surface brown or infuscate ; under side of flagellum brown, 

 the rest darker; stripe along lower edge and extreme hind corner of 

 pronotum whitish; lower 0.4 of propleurum whitish; tegula white; 

 front and middle legs whitish, the middle tarsus fuscous; hind coxa 

 fulvous, whitish at apex; hind trochanters whitish, each with an 

 infuscate area above ; hind femur fulvous, whitish at apex and extreme 

 base, with a faintly infuscate area subbasally above and a stronger 

 infuscate area subapically; hind tibia and tarsus fuscous, the tibia 

 basally and narrow base of each tarsal segment stramineous. Rarely 

 the sterna and lower part of pleura of meso- and metathorax are 

 tinged with ferruginous. 



Female: Front wing 5.7 to 9.2 mm. long; lateral ocelli separated 

 from each other by 1.0 to 1.15 their diameter, separated from eye to 

 1.0 to 1.2 their diameter; face and vertex punctate, the punctures 

 separated by 1.0 to 1.5 then diameter; temple scabrous from top of 

 eye down 0.67 the distance to mandible; flagellum with 33 to 36 

 segments; pronotal trough smooth and highly polished; mesoscutum 

 punctate, the punctures separated by their diameter; propodeum 

 rugoso-punctate, with a median longitudinal furrow; areolet present; 

 first tergite about 2.2 as long as wide; first sternite about 0.55 as long 

 as its tergite ; second tergite 1 . 14 to 1 .53 as long as wide ; second through 

 fifth sternites each with one pair of scleromes which extend 0.70 to 

 0.85 their length; thyridia comma-shaped or sometimes round; first 

 tergite densely punctate; punctation on second and following tergites 

 gradually less dense, the punctures on sixth tergite separated by 

 about twice their diameter; ovipositor sheath about 1.3 as long as 

 front wing. 



Black. Apical half of clypeus and most of mandible stained with 

 ferruginous; palpi white; scape and pedicel brown in front, narrowly 

 stramineous on apex in front; stripe along lower edge of pronotum, 

 short stripe on hind corner of pronotum (extending forward about 

 0.6 the distance to notaulus), tegula, and trochanters, white; thorax 

 black, or often partly or mostly ferruginous, the black color persistent 

 in groove of pronotum, around wing bases and scutella, and apex of 

 propodeum; front coxa white, fulvous basally; middle coxa fulvous, 

 sometimes white above; front and middle femora and tibiae white, 

 pale fulvous above and behind; front tarsus stramineous, brown 

 apically ; middle tarsus brown, pale at incisures ; hind coxa, trochanters, 

 and femur fulvous, the trochanters paler below, the second trochanter 



