246 CHARLES A. BLAKE. 



clothed with pale hairs ; abdomen ovate, the segments fringed with glittering 

 white hairs ; entire insect sprinkled with pale pubescence. Length .3..5 mm. ; ex- 

 panse of wings 6.5 mm. 



Hab. — Texas. Belfrage. 



Sphierophtlialiiia Robiii!<»oiiii Blake. 



Female. — Black ; head quadrate, doulile the width of thorax, posterior angles 

 produced iiito acute .spines, densely punctured, vertex c'othed with den.se. bright, 

 deep golden xnibescence ; cheeks prominent, finely ])unctured, thinly clothed 

 with pale glittering hairs ; on the cheeks below the eyes are two small bilobed 

 tubercles ferruginous in front, just beneath which there is a stout tooth on each 

 side projecting behind, ferruginous at tip ; below these are two others much 

 larger, projecting beneath, black, shining, finely punctured and clothed at base 

 with pale glittering hairs : mandibles .stout, with a tooth about one- 

 third of their length from the tips, a bright ferruginous dash before 

 the tooth ; anteunse black, the scape thinly clothed with pale glitter- 

 ing pubescence ; eyes prominent, round, polished ; thorax subquadrate, 

 slightly constricted, reticulate ; anterior angles armed with a small 

 tooth ; disc clothed with bright golden pubescence, except a rounded 

 black patch on me.sothorax and a longitudinal patch of the same color 

 on the metathorax, which is abruptly truncate ; legs black, clothed 

 with pale glittering hairs, the intermediate and jwsterior tibite armed 

 exteriorly with a row of spines; tar.sal joints fringed with ferruginous hairs, 

 calcaria pale, ferruginous; extremity of anterior tibia? and first joint of tarsi 

 deeply emarginate, with the spur lanceolate ; abdomen ovate, basal segment broad 

 at its apical margin, clothed with pale golden pubescence, second segment finely 

 punctured, clothed with dense black pubescence and bearing two large quadrant- 

 shaped fulvous patches, the third and following segments fringed with pale gol- 

 den pubescence ; under side of entire insect thinly clothed with pale hairs. 

 Length 18 mm. 



Hab. — Mexico (Prof. F. Sumichrast). Five specimens. 



In some specimens the basal joint of abdomen is entirely black. 



This species is nearly allied to capitata Smith, but is readily dis- 

 tinguished by the shape of the thorax and the greater width of the 

 head in proportion to the thorax, as well as the large tooth behind 

 the mandibles. 



^l)]la^ro|>llthalnla eapitata Smith. 



Female. — Black ; head quadrate, wider than the thorax, densely clothed with 

 pale golden pubescence, the cheeks furnished with a stout tooth ; the apical joints 

 of the flagellum ferruginous beneath; the mandibles ferruginous, their apex 

 black ; thorax short, broad and narrowed posteriorly, rounded in front, suddenly 

 contracted, on each side a short tooth before the contraction ; the metathorax 

 truncate, the disc covered with pale golden pubescence, having in front a large, 

 rounded, black patch ; the legs thinly covered with pale golden pubescence, the 

 calcaria and apical joints of the tarsi pale ferruginous, the intermediate and pos- 

 terior tibise armed exteriorly with a row of spines ; abdomen : the second seg- 

 ment having a large, transverse, yellow macula clothed with golden pubescence. 



