NO. 2349. REVISION OF NEARCTIC APANTELES—MUESEBECK. 511 



21. APANTELES NINIGRETORUM Viereck. 



Apanteles (Apanteles) ninigretorum Viekeck, Bull. 22, Conn. State Geol. 

 and Nat. Hist. Survey, 1916, pp. 191, 200. 



Habitat. — Connecticut. 

 Host. — Unknown. 



Type apparently lost. There is nothing in the original character- 

 ization which will separate this species from ensiger. 



22. APANTELES XANTHOPUS (Ashmead). 



Urogaster xanthopus Ashmead, Trans-. Ent. Soc. London, 1900, pt. 2, p. 288. 



Habitat. — St. Vincent. 



Host. — Unknown. 



Known only from the cotype material in the National Collection; 

 other cotypes are in the British Museum. It is closely allied to en- 

 siger., from which it can be readily separated by the smooth and pol- 

 ished second abdominal tergite. 



23. APANTELES LEUCOPUS (Ashmead). 



Urogaster leucopus Ashmead, Trans. Ent. Soc. London, 1900, pt. 2, p. 287. 



Habitat. — St. Vincent; Grenada. 



Host. — Unknown. 



Only the single cotype specimen in the National Museum has been 

 seen by the writer; other cotypes are in the British Museum. The 

 species is readily distinguished from xanthopus and 'pinos by the 

 black abdomen. 



24. APANTELES PINOS (Cresson). 



Microgaster pinos Ckesson, Proc. Ent. Soc. Philad., vol. 4, 1865, p. 67. 



Habitat. — Isle of Pines, West Indies. 



Host. — Unlmown. 



Placed in the key on the basis of the original description. The 

 type, which is in the Academy of Sciences at Philadelphia, has not 

 been seen. 



25. APANTELES BETHELI Viereck. 



Apanteles (Apanteles) betheli Viekeck, Proc. U. S. Nat. Mus., vol. 39, 

 1910, p. 402. 

 Habitat. — Colorado. 



Host. — (?) Argyresthia, species on oak (Viereck). 

 Known only from the three specimens constituting the type series 

 in the National Collection. 



26. APANTELES CALIFORNICUS, new species. 



Very similar to betheli., from which it is distinguished by the more 

 smooth and shining propodeum, by the areola not being sharply 

 circumscribed, and by the lighter legs. 



