234 CHARLES A. BLAKE. 



Sphserophtlialnia mixtiira Blake. 



Female.— Ferruginous; head round, scarcely as wide as thorax, vertex clothed 

 with pale golden pubescence ; eyes prominent, flagellum of antennae fuscous, 

 slightly pruinose, tips of mandibles blackish ; thorax subovate, narrowed poste- 

 riorly, clothed above with pale golden pubescence ; metathorax obliquely trun- 

 cate, flanks coarsely punctured; legs thinly clothed with white hairs, spines of 

 the tarsi black ; abdomen ovate, closely punctured, thinly clothed with mixed 

 black and yellow hairs, apical half of second segment pale ferruginous, margin 

 blackish, apical margin above and beneath fringed with glittering whitish hairs. 

 Length 7 mm. 



Ha b. — Colorado. 



Sphrerophthalma Cressoni Blake. 



Female. — Black ; clothed with dense golden pubescence ; head subquadrate, 

 somewhat narrower than the thorax, posterior angles rounded ; antennae rufo- 

 piceous, flagellum clothed with scattered glittering hairs; eyes prominent, pol- 

 ished, rounded ; thorax subovate, narrowed posteriorly and abruptly 

 truncate, mesothorax with lateral carinae, disc black, coarsely granu- 

 late, with a few scattered black hairs and margined with dark golden 

 pubescence ; abdomen ovate, deeply punctured, basal segment black, 

 the apical margin fringed with pale pubescence, second segment with 

 two ovate fulvous spots at the basal margin and a broad anteriorly 

 emarginate band of the same color near the apical margin, clothed 

 with dee]) golden pubescence; third and fourth segments black, with 

 a longitudinal line of paler pubescence, forming the black ground into 

 two lateral quadrate spots ; fifth and sixth segments clothed entirely with pale 

 golden pubescence, apex black ; ventral segments fringed with pale golden hairs; 

 legs black, intermediate and posterior tibiae armed with a row of spines and clothed 

 with long pale hairs; entire insect beneath clothed with long pale glittering 

 hairs. Length 19 mm. 

 Hab. — Mexico. 



Sphrerophtlialma Norton! Blake. 



Female. -Head rounded, wider than the prothorax, posterior angles more acute 

 than in the preceding species, coarsely punctured, clothed with short golden pu- 

 bescence, interspersed with longer hairs ; antennae black, naked ; eyes round, 

 prominent, polished; thorax black, narrowed posteriorly, somewhat 

 constricted, coarsely punctured, with a broad discal band clothed with 

 appressed, bright golden pubescence, metathorax slightly truncate, 

 sides clothed with a dense silvery pile ; abdomen ovate, coarsely punc- 

 tured, basal segment clothed with pale golden pubescence; second 

 segment with four orange spots, clothed with a scattered golden pu- 

 bescence, the two at the basal margin subtriangular, those on the apical 

 margin are larger and nearly joined together, third and fourth seg- 

 ments black, fifth and sixth with golden pubescence, apex black; 

 ventral segments fringed with long pale hairs ; legs black, middle and posterior 

 tibiae and tarsi clothed with silvery hairs, those on the tarsi being longer and 

 much more dense; under side of thorax and abdomen clothed with obscure 

 grayish hairs. Length 17 mm. 

 Hab. — Mexico. 



