218 CHARLES A. BLAKE. 



lliphseroplitlialiiia vestita Klug. 



Female. — Head black, clothed with black pubescence, that on the front and 

 vertex reddish golden ; antennae black ; thorax black, pubescent beneath and on 

 the sides, tufted on the back, with a red border; abdomen black, clothed above 

 with black hairs on the first and second segments, below the same, the apical 

 segments clothed with tufted reddish golden pubescence ; legs black, clothed 

 with black hairs, spines black. 



Male. — Head clothed with black hairs, with the exception of a little tuft on 

 the vertex, which is reddish golden ; sixth segment of the abdomen same as in 

 the female ; wings black, with a violet reflection, nervures, stigma and tegulas 

 blackish. (Klug.) 



Hab — Mexico. 



Kpliivroplitlialiiia ursula Cresson. 



3{ale. — Black ; thorax and scutellum above, and abdomen above, except first 

 and base of second segments, clothed with a dense golden, fulvous pubescence; 

 wings black ; second segment of abdomen shining, the pubescence sparse on the 

 disk, the apical half generally divided into two more or less distinct, rounded, 

 bright fulvous spots, sometimes confluent. Length 13 mm. (Cresson.) 



Hab — Oregon, Texas. 

 Allied to bioculata Cresson. 



Sphieroplitlialma auraria Blake. 



Female. —Black ; head rounded, densely clothed on vertex With golden pubes- 

 (^euce, cheeks testaceous, coarsely punctured ; antennae fusco-testaceous, flagellum 

 slightly pruinose ; mouth clothed with long white hairs ; eyes round, polished ; 

 thorax ovate, narrowed posteriorly, densely clothed with golden pubescence ; 

 legs blackish fuscous, tarsi, spines and calcaria testaceous; abdomen ovate, 

 clothed with golden pubescence, more dense on apical segments; ventral surface 

 black, thinly clothed with long white hairs, margins of apical segments densely 

 fringed with pale golden pubescence. Length 12 mm. 



Hab. — Nevada. (Morrison. ) 



Spliferoplitlialnia arota Cresson. 



Female. — Robust; brown-ferruginous; head round, narrower than thorax: 

 thorax short, subquadrate, slightly narrowed posteriorly; abdomen short ovate, 

 much broader than thorax ; head, thorax at sides and beneath, and apex of ab- 

 domen and beneath, clothed with a moderately dense silvery white pubescence, 

 interspersed with long erect hairs of same color ; the appressed pubescence on 

 the head is very dense ; thorax above and second abdominal segment above with 

 a dense, appressed golden fulvous pubescence, also interspersed with longer erect 

 hairs of same color ; legs blackish, with long pale pubescence. Length 7 mm. 

 (Cresson.) 



Hab. — 8an Diego, California. 



Mphseroplitlialiiia iiiarpesia Blake. 



Female. — Black ; head subquadrate, rounded posteriorly, clothed with yellow 

 pubescence, cheeks coarsely punctured, mouth densely clothed with pale pubes 

 fence ; antennae fuscous, scape clothed with whitish pubescence, flagellum slightly 



