232 BULLETIN" 143, UNITED STATES NATIONAL MUSEUM 



subcarinate genae, the coarse sculpture of the head, and the black 

 head and thorax will at once distinguish it. Blake described this 

 species from a unique which was returned to the Museum of Compara- 

 tive Zoology at Cambridge, Mass., and which is in the collections there 

 at the present time. 



94. DASYMUTILLA MAGNA (Cresson) 



Mutilla magna Cresson, Proc. Ent. Soc. Phila., vol. 4, p. 385, 1865, female. — 



Dalle Torre, Cat. Hymeiv., vol. 8, p. 5G, 1897. — Fox, Trans. Amer. Ent. 



Soc, vol. 25, p. 237, 1899, female. — Melandee, Trans. Amer. Ent. Soc, vol. 



29, p. 296, 1903, female, pi. 4, fig. 7. 

 Mutilla {Sphaeroplithalma) magna Blake, Trans. Amer. Ent. Soc, vol. 3, 



p. 235, 1871, female. 

 Sphaeroplithalma magna Blake, Trans, Amer. Ent. Soc, vol. 13, p. 214, 



1886, female. 

 Ephnta (Ephuta) magna Andre, Gen. Ins., vol. 1, fasc 11, p. 61, 1903, 



female. 



Type. — Female, Cape St. Lucas, Lower California, in collection of 

 American Entomological Society of Philadelphia. 



The male of this species has heretofore been unknown; it may be 

 described as follows : 



Male. — Black, clothed with whitish pubescence on the head and 

 thorax, pale yellowish pubescence on the abdomen. Length, 17 mm. 



Head black, clothed with sparse black hairs, except the front and 

 vertex clothed with long, erect white hairs, and a very few scattered 

 pale hairs on the genae ; mandibles tridentate ; clypeus bidentate me- 

 dially at the apical margin ; first segment of flagellum five-sixths the 

 length of the second; scape bicarinate beneath, clothed with black 

 hairs; antennal scrobes strongly carinate above; front, vertex and 

 genae with moderate, shallow, more or less confluent punctures; rela- 

 tive widths of head and thorax 8-12. 



Thorax black; prothorax, mesonotum, scutellum, metanotum, and 

 tegulae at base and inner margin clothed with long, semierect, white 

 hairs; remainder of thorax clothed similarly with black hairs; pro- 

 notum, mesonotum and scutellum with large, deep confluent punc- 

 tures, almost reticulate on the metanotum; propleura irregularly 

 punctate with large, moderate, and also fine punctures; mesopleura 

 with moderate, well-separated punctures on the anterior one-third, 

 the posterior two-thirds with large, confluent punctures; metapleura 

 for the most part glabrous, a few large punctures ventrally ; sides of 

 propodeum with very large, close punctures, almost reticulate; dor- 

 sum and posterior face of the propodeum reticulate, the reticulations 

 large and deep; tegulae glabrous, except the basal, and inner lateral 

 margins punctate. 



