123 



iiiinal sefTincnt 7 iniii. Taken in the mountains near (Jlareniont, C'alifor- 

 nia. 



Front and vertex strongly and closely, the clypens strongly and spar- 

 sely punctured. Clypeus pyriforni, its length equal to its greatest width; 

 the apical incision shallow, wide, the sides oblique. Pro-and meso-thorax 

 punctured like the vertex; the metanotum as strongly but not so clo- 

 sely punctured; the base of nietapleurae aeiculated; the centre of the 

 m'esopleurae is more or less reticulated. Base of nietapleurae coarsely 

 aeiculated, the apex closely, stoutly rticulated. The suture on the first 

 abdominal segment is stout, narrower in the centre, the sides twisted; the 

 apical border is raised, this being also the case but more narrowly with 

 the second segment. 



3450 Ancistrocerus sutteranus Sauss. 



This species has been taken by Prof. Baker in Orinsby county, Nevada. 

 It seems to be a very variable species, particularly as regards the size 

 and shape of the black markings on the abdomen. In one example the 

 black mark is small and triangular; in another it is large, reaching from 

 the base to near the apex; the sides of the mark are roundly curved 

 inwardly. In one male the first abdominal segment is black except for a 

 mark on the sides at the apex. 



3454 Odynerus (Fachodynerus) cosmiogaster ep. nov. 



Black; the under side of antennal scape, clypeus, mandibles, except 

 along the inner edge, a transverse mark over the antennae, a narrow line 

 along the inner orbits from the antennae to the commencement of the 

 eye incision, a narrow line along the top of the outer orbits, the base of 

 the prothorax, the mark narrow in the middle extending broadly along 

 the pleurae to shortly beyond the middle, the greater part of the tegulae, 

 a large mark below the tegulae longer than broad, the base rounded, the 

 rest straight, the top with two angles, postscutellum, an oblique irregu- 

 lar mark on the lower outer side of the metanotum and the abdomen, 

 sulphur-yellow; the first segment black to shortly beyond the middle ex- 

 cept along the sides broadly from near the base and the apex more na- 

 rrowly, the base of the second segment broadly, the line expanded into 

 a large mark in the middle; this mark having the sides oblique and 

 slightly roundly incised; the third to sixth bear large marks, which are 

 roundly dilated on the sides at the apex; the last segment entirely black, 

 except for a small mark near the middle; the ventral segments to the 

 sixth are broadly black at the base, the marks roundly dilated on the 

 sides at the apex; the last is entirely black. Legs sulphur yellow; all 

 the coxae and trochanters, the four front femora at the base all around 

 and above to shortly beyond the middle and the hinder to near the apex, 

 black. "Wings hyaline, the costa and stigma fulvous-testaceous, the ner- 

 vures blackish. Male. Taken in Ormsby countrv, Nevada. 



