G8 CHARLES A. BLAKE. 



Descriptions of two new species of MUTILLA from Mexico. 



BY CHARLES A. BLAKE. 



Mutilla Cressoni, n. sp. — Female. Head sub-quadrate, somewhat narrower 

 than the thorax, posterior angles rounded. Black, clothed with dense golden 

 pubescence. Antennre rufo-piceous, flagellutn clothed with scattered glittering 

 hairs. Eyes prominent, polished, rounded. Thorax sub-ovate, narrowed pos- 

 teriorly, and abruptly truncate, mesothorax with lateral carinse, disc black, 

 coarsely granulate, 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 deep 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 seg- 

 ments clothed entirely with pale golden pubescence, apex black. Ventral seg- 

 ments fringed with pale golden hairs. Legs black, middle 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 9 lines. 



Ilah. — Mexico. Two specimens (Coll. Am. Eut. Soc. from Prof. 

 F. Siimichrast). 



I take great pleasure in dedicating this beautiful species to my friend 

 and co-laborer in entomology, Mr. E. T. Cresson. 



Mutilla Nortoni, n. sp. — Female. Head rounded, wider than the prothorax, 

 posterior angles more acute than in the preceding species, coarsely punctured, 

 clothed with short golden pubescence, interspersed with longer hairs. Anten- 

 nas black, naked. Eyes round, prominent, polished. Thorax black, narrowed 

 posteriorly, somewhat constricted, coarsely punctured, with a broad diseal 

 band clothed with appressed, bright golden pubescence, metathorax slightly 

 truncate, sides clothed with a dense silvery pile. Abdomen ovate, coarsely 

 punctured, basal segment clothed with pale golden pubescence; second segment 

 with four orange spots, clothed with a scattered golden pubescence, the two at 

 the basal margin, sub-triangular, those on the apical margin are larger and 

 nearly joined together, third and fourth segments black, fifth and sixth with 

 golden i)ubescence, apex black; ventral segments fringed with long pale hairs. 

 Legs black, middle and posterior tibise and tarsi clothed with silvery hairs, 

 those on the tarsi being longer and much more dense. Underside of thorax 

 and aljdomen clothed with obscure greyish hairs. Length 8 lines. 



ILib. — Mexico. Two specimens (Coll. Am. Ent. Soc. from Prof. 

 F. Sumichrast). 



Closely resembles J/. Cressoni', and is readily distinguished by the 

 band ou the thorax, and by the less robust form. 



This fine species is respectfully dedicated to Mr. Edward Norton, of 

 Farmington, Conn., from whom I have received valuable assistance in 

 the study of this family. 



