AMERICAN MUTILLID^. 265 



California. Dalla Torre, supposing the genus Myrmosa a syno- 

 nym of Mutilla, ciianged the name of this species to monochroa, as 

 there is a Myrmosa unicolor, which was described prior to the 

 Mutilla unicolor. Myrmosa is a good genus however. 



138. IVIiitilla anthopliorie Ashm. 



SiphserophfhiUmii anthophorx Ashmead, Proc. South. Calif. Acad. Sci., i, No. 

 3, p. 5, 9 I, 1897. 



California. This species is especially interesting, in view of the 

 fact that both sexes are known, having been bred from the cells of 

 a bee, Aanthophora. 



139. 9Iutilla rustica Blake. 



Agama rusticn Blake, Tr. Am. Ent. See, vii, 252, % , 1879. 

 Photopsis rustica Blake, ibid, xiii, 271, % , 1886. 



California. Only the unique type seen. 



140. ]VIutilla iiieiidiea Blake. 



Agama mendicn Blake, Tr. Am. Ent. Soc., iii, 259. 'J,, 1871. 

 Photopsis mendtca Blake, ibid, xiii, 259, % , 1886. 



Nevada. 



The following eleven species have the first segment evenly nar- 

 rowed its entire length and not suddenly contracted before its mid- 

 dle, and is more sessile with the second segment, being quite short 

 and broad in some species : 



141. Altitilla |>refiosissiina D. T. 



Photopsis vennstus Blake, Tr. Am. Ent. Soc, xiii, 270, %,, 1886 (nee 3rutilln 



vemistiis Smith). 

 Mutilla pretiosissima Dalla Torre, Cat. Hym., viii, 74, % , 1897. 



Arizona. Only the unique type seen. The peculiar flat head in 

 this species is similar to that of the species of the genus Lyda. 



142. Iflutilla adonis u. sp. 



% . — Castaueous brown, clothed with erect, white pubescence, the abdominal 

 segments fringed or banded with pubescence of the same color; femora and 

 tibiae blackish, coxse and tarsi testaceous; second segment apically and following 

 segments more or less fuscous; head about as wide as thorax, rounded behind : 

 space between hind ocelli about equal to that between them and eyes, if any- 

 thing, slightly less; antennae fuscous above, pale beneath, the first joint of lia- 

 gellum not two-thirds as long as second, the scape about one-quarter longer than 

 the combined length of the pedicel and first flagellum joint and strongly punc- 

 tured ; basal areas of middle segment large and distinct, reticulation large; first 

 abdominal segment evenly and strongly punctured, almost sessile with second, 

 the sides straight, not suddenly contracted anterior to middle; punctures of sec- 

 ond dorsal but little sj)arser medially; pygidium distinctly margined laterally; 

 wings subhyaline, without fuscous spots, nervures testaceous, stigma blackish. 

 Length 15 mm. 



TRANS. AM. ENT. SOC. XXV. (34) MARCH, 1899. 



