HYIMENOPTERA FRO.AI LOWER CALIFORNIA. II9 



Ox^A VAGANS n. sp. 



? . — Black; face, clypeus and cheeks with a sparse, 

 pale pubescence; pubescence on vertex fuscous, that of 

 the occiput long and pale; thorax above with dense, 

 bright fulvous pubescence, much paler on the sides and 

 beneath; legs with black or dark brown pubescence, ex- 

 cept on the femora beneath and the hind tibia? within, 

 where it is long and pale; knee caps with short, golden 

 pubescence; first and second dorsal segments at sides 

 and first and second ventrals medially, with pale pubes- 

 cence ; the fifth dorsal has also at the sides pale pubes- 

 cence, and medially black pubescence; ventral segments 

 2—5 at apex each with a band of pale pubescence, 

 which is connected with the lateral pubescence; wings 

 basally subhyaline, on apical half fuscous, with violaceous 

 reflections, nervures dark testaceous; head with shallow 

 punctures, those on the vertex stronger than those on the 

 front, while on the clypeus the punctures are coarse and 

 confluent; on the labrum the sculpture is coarser than on 

 the clypeus, and the former has a longitudinal impressed 

 line, or furrow; first joint of flagellum nearly as long as 

 the five following joints united ; pronotum above emar- 

 ginate medially; sculpture of thorax hidden by the pubes- 

 cence; abdomen deep black, with a slight iridescence on 

 segments 2—4; dorsal segments 1—4 except apex, punc- 

 tured rather sparsely. Length, 18-21 mm. 



3 . — Eyes nearly touching on the vertex, being sep- 

 arated at that point by a distance that about equals the 

 length of the twelfth antennal joint; last joint of flagel- 

 lum obliquely truncate ; labrum not coarselv punctured 

 as in the ? ; pubescence on head, and sides of thorax 

 apparently yellower than in the ? ; tarsi reddish, the 

 legs clothed with a rather sparse, brown pubescence; no 

 white pubescence on sides of abdomen, but the first dorsal 



