ART. 15. REVISION OF THE MUTILLID WASPS MICKEL. 33 



1887. Sphaerophthalma simillima Ceesson, Trans. Amer. Ent. Soc, suppl. 



vol., p. 266, female. 

 1897. Mutilla simillima Dalle Torke, Cat. Hymen., vol. 8, p. 86, female. 

 1899. Mutilla simillima Fox, Trans. Amer. Ent. Soc, vol. 25, p. 227, female. 

 1903. Ephvta simillima Ande^, Gen. Ins., vol. 1, fasc. 11, p. 64, female. 

 1903. Mutilla simillima Melander, Trans. Amer. Ent. Soc, vol. 29, p. 294. 



female. 

 1916. Pseudomethoca {Nomiaephagu^) simillima Bradley, Trans. Amer, 



Ent. Soc, vol. 42, p. 320, female. 

 1916. Nomiaephagus simillimus Rohwer, Hymen. Conn., p. 623, female. 

 1922. Bruesia sparsiiformis Hav, Trans. Acad. Sci. St. Louis, vol. 25, p. 3, 



female and male. 



Type. — Female, Massachusetts, in collection of British Museum. 



I have before me the specimens mentioned by Ran (1922) and 

 find that the female is simillima Smith, while the male has hereto- 

 fore been undescribed. 



Male. — Black, with the second segment of the abdomen ferrugi- 

 nous; length 9 mm. Head black, clothed with sparse, long, erect, 

 black pubescence; mandibles tridentate; clypeus bidentate medially 

 at the apex, closely punctate; antennae separated at the base by a 

 distance equal to two-thirds the length of the scape; scape coarsely 

 punctate; front and genae closely punctate; vertex with the punc- 

 tures for the most part separated; eyes slightly ovate, the distance 

 between the hind margins and the postero-lateral angles equal to 

 half the longitudinal diameter of the eyes; relative widths of head 

 and thorax 1-1, 



Thorax black, clothed with sparse, long, erect, black pubescence; 

 pronotum, mesonotum and scutellum with large, close, sometimes 

 confluent punctures; dorsum and posterior face of propodeurn 

 deeply alveolate; humeri rounded; cephalic margin of the pro- 

 pleura rounded; propleura, mesepisternum and mesepimeron with 

 large, close punctures ; metapleura polished, with a thin microscopic 

 silvery pile ; sides of propodeum polished, the caudal half reticulato- 

 punctate; tegulae with a few fine punctures at the base, for the 

 most part polished, with a distinct posterior face. 



Abdomen black, with the second segment ferruginous, clothed 

 throughout with long, sparse, black pubescence; first segment com- 

 l^Ietely sessile with the second; first tergite very dark red, with dis- 

 tinct scattered punctures ; second tergite ferruginous, distinctly punc- 

 tate, the punctures separated by about their own diameter; tergites 

 3-7 black, distinctly punctate; second sternite reddish black, with 

 distinct, separated punctures; remaining sternites black; sternite 7 

 transversely concave, punctate. 



Wings subfuscous; cell R4 obsolete; vein M 3-f-4 received by cell 

 R5 slightly before the middle. 



Legs black, clothed with sparse, black pubescence. 



