some Parasitic Dees. 41 



black ; middle femora with a black stripe above. Wings quite 

 clear, except the broad apical margin, which is faintly dusky ; 

 nervures and stigma piceous; marginal cell obliquely sub- 

 truncate, minutely appendiculate; second submarginal cell 

 nearly as broad above as third. Abdomen thick-fusiform, the 

 black areas very distinct, that on first segment a broad trans- 

 verse band, obliquely truncate laterally ; hair-bands on first 

 and second segments narrowly interrupted medially ; second 

 with large lateral oval spots touching the band ; light areas 

 on fifth segment just meeting on disk; pygidial plate ferru- 

 ginous, broadly triangular, but subtruncate at tip; second 

 ventral segment white with a large black (nude) patch on each 

 side ; third and fourth with white hair-bands. 



Bob. Beulah, New Mexico, prox. 8000 ft., July 11 

 ( Cockerel!) . 



Allied to E. autumnalis, Rob., but differs by the clear wino-s, 

 small spines of scutellum, &c. 



Epeolus olympiellus, sp. n. 



6 . — Length about 7-§- millim. 



Stout, with an oval abdomen, black with the usual yellowish- 

 white markings ; labrum entirely black, with two prominent 

 apical projections ; middle part of mandibles bright ferrugi- 

 nous; lower part of face, down to middle of clypeus, covered 

 with silvery hair; clypeus densely rugoso-punctate ; scape 

 black ; tubercles ferruginous ; tegulse dark ferruginous, mi- 

 nutely and densely punctulate. Wings nearly clear, apical 

 margin broadly dusky, nervures and stigma piceous; marginal 

 cell obliquely subtruncate, minutely appendiculate; second 

 transverso-cubital nervure with its upper half wanting; if it 

 were complete, the second submarginal cell would be fully 

 twice as broad above as the third. Femora black, the knees 

 red j tibiae with the greater part black ; tarsi ferruginous ; 

 spurs light ferruginous; lower part of pleura thinly pubescent', 

 densely rugoso-punctate j mesothorax with the usual two 

 stripes widely separated, and without erect pubescence ; scu- 

 tellum subbilobate, wholly black, the lateral teeth short, but 

 very distinct. Abdomen with the black areas well-defined ; 

 apical bands on segments 1 to 4 interrupted in the middle, the" 

 approximating portions of the bands on 2 to 4 club-shaped ■ 

 black area on first segment a very broad band, obliquely 

 truncate laterally, and not produced much more than halfway 

 to the lateral margins j band on second segment broadened at 

 the sides, but no oval patch ; apical plate broadly rounded 

 black; ventral surface with two broad white hair-bands. 



