220 CHARLES A. BLAKE. 



large basal segment and all the other segments above, clothed with a dense, 

 bright fulvous pubescence ; beneath, entirely black. Length 11-13 mm. ; ex- 

 panse of wings 19-23.5 mm. (Cresson.) 



Hab. — Colorado. 



The pubescence on the upper surface of the head, thorax and ab- 

 domen varies from ochraceous to ferruginous, but generally it is 

 bright fulvous. This may be the male of S. califomica Radosz. 



Splirerophthalma aspasia Blake. 



Female. — Fuscous ; head round, scarcely as wide as thorax, closely punctured, 

 clothed with whitish pubescence ; antennae fuscous, flagellum paler, scape finely 

 punctured, clothed with glittering hairs ; eyes round, polished ; thorax quadrate, 

 slightly narrowed behind, clothed with coarse golden pubescence ; metathorax 

 abruptly truncate; legs fuscous, clothed with pale glittering hairs; abdomen 

 ovate, second segment clothed with long, silky, golden pubescence ; apical mar- 

 gins of segments fringed with pale yellowish hairs. Length 7 mm. 



Hab. — Nevada. 



Allied to aurarla Blake. 



Sphairophtlialiiia. chiron Blake. 



Male. — Black ; head not as wide as the thorax, clothed with long black pubes- 

 cence; antennae black; eyes small, round, prominent; thorax short, ovate, 

 clothed with long black pubescence ; metathorax coarsely reticulate ; wings 

 moderate, fuliginous, three submarginal cells, the marginal cell truncate at tip, 

 first submarginal large, second small, subtriangular, its basal and apical nervures 

 sinuate, receiving the first recurrent nervure near the base; third submarginal 

 larger, slightly narrowed beneath, receiving the second recurrent close to its 

 apical nervure; legs black, clothed with black hairs; abdomen ovate, petiolate, 

 basal segment coarsely punctured, second closely and finely punctured, clothed 

 with long, erect, black pubescence, remaining segments densely clothed with 

 long fulvo-ferruginous pubescence ; under side shining, second segment closely 

 punctured. Length 9 mm. ; expanse of wings 13 mm. 

 Hab. — Texas. Two specimens. 



This species is closely allied to fulvohirta Cresson, but may be 

 readily distinguished by the clothing of the head and thorax being 

 black, and having the third submarginal cell distinct. One variety 

 has the thorax and apical segment of the abdomen clothed with 

 fulvous pubescence. 



Sphrerophthalma zenobia Blake. 



Female. — Fuscous ; head round, not as wide as thorax, clothed with dense, deep 

 golden pubescence ; eyes round, prominent ; antennse fuscous ; thorax quadrate, 

 narrowed posteriorly, clothed with reddish golden pubescence, flanks smooth, 

 metathorax abruptly truncate, clothed with long erect hairs ; legs fuscous, thinly 

 clothed with long pale hairs ; abdomen ovate, basal segment with long, erect 

 hairs, second and following segments clothed with dense reddish golden pubes- 

 cence ; ventral fringes whitish. Length 6 mm. 

 Hab. — California. 

 Allied to aurarla Blake. 



