236 CHARLES A. BLAKE. 



apex black ; under side black, closely punctured, ventral segments fringed with 

 pale golden mixed with silvery hairs. Length 7-11 mm. 



Hab. — Mexico. Prof. F. Sumichrast. 



In some specimens the head is clothed with a dense golden pubes- 

 cence. 



Sphrerophthalma solola Blake. 



Female. — Black ; head rounded, densely clothed with coarse, deep golden pu- 

 bescence ; antenna? black ; eyes round, prominent ; thorax short, clothed similar 

 to the head, except a round black patch on the disc of mesothorax, which is lat- 

 erally produced into obtuse angles, metathorax abruptly truncate behind : legs 

 black, thinly clothed with pale hairs ; intermediate and posterior tibiae armed 

 exteriorly with a row of strong spines, calcaria black ; abdomen broadly ovate, 

 closely punctured, basal segment small, second segment having a broad emar- 

 ginate band of deep golden pubescence at its apical margin and two round spots 

 of the same color placed laterally near the base ; third segment clothed with 

 deep black, apical segments with pale golden pubescence ; under side coarsely 

 punctured, lateral carina? distinct, ventral segments fringed with pale glittering 

 hairs. Length 7-8.5 mm. 



Hab. — Guatemala. Prof. F. Sumichrast. 



Closely allied to S. Cressoni. 



Sphaerophthalma arachnoides Smith. 



Female. — Black ; densely pubescent, that on the head ochraceous ; thorax and 

 legs covered with ochraceous pubescence, the former having a large 

 rounded patch of black on the disc ; the abdomen is also covered with 

 ochraceous pubescence, the second segment having a large trilobate 

 black pubescent patch, which extends from the basal to the apical 

 margin of the segment; tbe fifth and sixth segments are covered with 

 black pubescence, the sides being pale. Length 12 mm. 



Hab. — Mexico. 



A very distinct and well marked species. In the series 

 before me the individuals vary in length from 11 mm. to 14 mm. 



Spluerophtlialma formosa Blake. 



Female. —Head quadrate, slightly wider than the thorax, clothed with dense 

 bright golden pubescence, interspersed with erect hairs of the same color; an- 

 tennae piceous, maudibles rufo-piceous, tips black ; eyes round, prominent ; tho- 

 rax short, subovate, finely reticulated, anterior margin fringed with deep golden 

 pubescence, behind which is a lunate patch of brownish black, apical 

 P Q half clothed with glittering pale golden pile, metathorax roundly 

 ^P truncate, with a small obtuse black tooth on each side ; sides of thorax 



\ / clothed with silvery pubescence ; legs rufo-piceous, clothed with glit- 



^X tering silvery hairs, intermediate and posterior tibia? armed with a 



/ W\ row of spines, posterior femora with an acute tooth, calcaria pale yel- 

 WKtf low tipped with In-own ; abdomen ovate, apical margin of basal seg- 

 ment clothed with silvery pubescence, second segment clothed with 

 glittering, pale golden pile, with a round patch of black pubescence at 

 the base, connected with the apical margin, which is of the same color, by a nar- 



