12 PROCEEDINGS OF THE NATIONAL. MUSEUM. vol.64. 



The following additional characters may also be mentioned: Pro- 

 pleura punctate, with sparse, long, whitish hairs ; mesopleura, meta- 

 pleura and sides of propodeum smooth and shining; dorsum of 

 thorax shallowly and confluently punctate (similar to the punctura- 

 tion of the head) , becoming broadly reticulate on the dorsum of the 

 propodeum; caudal face of propodeum smooth; second tergite with 

 moderately deep punctures, basally and medially the punctures con- 

 fluent, laterally the punctures strong but sparse. 



Wliile this species is similar to nephele Fox in many respects it is 

 easily distinguished from the latter by the prominent bidentate 

 carina at the base of the antennae mentioned in the description ; by 

 the fact that Tiephele has the carina on the genae bidentate while in 

 dentifrontalis it is unidentate; and by the fact that in nephele- the 

 antennae are separated by a distance equal to half the length of the 

 scape while in dentifrontalis they are more widely separated, the 

 distance between them equal to the length of the scape. 



3. PSEUDOMETHOCA ATHAMAS (Fox). 



Plate 2, fig. 8. 



1899. Mutilla athamas Fox, Trans. Amer. Ent. Soc, vol. 25, p. 225, male. 

 1903. Pseud ametfvoca? athamas Andre, Gen. Ins., vol. 1, fasc. 11, p. 28, male. 



Type. — Male, Poway, California, in collection of American Ento- 

 mological Society of Philadelphia. 



Plesiotype. — Male, Laguna Beach, California (Baker), Cornell 

 University collection. 



Specimens examined. — California: Male, Claremont (Baker), 



The genitalia of the type and the plesiotype have been compared 

 and found to be identical. /-*. dentifrontalis Bradley is possibly the 

 female of this species. 



4. PSEUDOMETHOCA NEPHELE (Fox). 



1899. Mutilla nephele Fox, Trans. Amer. Ent. Soc, vol. 25, p. 223, female. 

 1903. Pseudomethoca? nephele AissDRt, Gen. Ins., vol. 1, fasc. 11, p. 28, female. 

 1903. Mutilla nephele INIelandeu, Trans. Amer. Ent. Soc, vol. 29, p. 293. 

 female. 

 Type. — Female, Brownsville, Texas, in collection of American En- 

 tomological Society of Philadelphia. 



Specim&ns examined. — Texas: Female, June 1, 1904, Elmendorf 

 (A. W. Morrill) ; female, April 29, 1896, Neueces (Marlatt). 



I have examined the type of this species and find that the carina 

 on the gena is bidentate. This character is not mentioned in Fox's 

 description and is one which distinguishes it from other related 

 forms. 



