1274 Hymenoptera in America North of Mexico 



Two of our native species have been reared from larvae of tiger beetles, the known host of 

 several extrahmital species. 

 Only the typical subgenus occurs in North America. 



Morphology: Reid, 1941. Roy. Ent. Soc. London, Trans. 91: 389-390, figs. 26-28 (female, male 

 thorax). 

 californica Westwood. Calif., Nev., Wash. Host: Cicindela senilis Horn ?; cicindelid sp.; reared 

 in laboratory on Omus califomicus Esch. 

 Mefhoca (!) californica Westwood, 1881. Ent. Soc. London, Trans., p. 133. 9. 

 Methoca (!) nigrior Fox, 1899. Amer. Ent. Soc, Trans. 25: 288. 6. 



Biology: Bridwell, 1912. Pacific Coast Ent. Soc, Proc. 1: 46-48 (host). — Burdick and 



Wasbauer, 1959. Wasmann Jour. Biol. 17: 75-88, 6 figs, (prey capture, oviposition, life 



history, egg, larva). 

 formosa Krombein. Fla. (Arcadia). 



Methocha (Met hoc ha) formosa Krombein, 1954. Amer. Ent. Soc, Trans. 80: 2, figs. 1, 3. 9. 

 impolita Krombein. W. Va., D. C, N. Y. 



Methocha (Methocha) impolita Krombein, 1958. Ent. Soc. Wash., Proc. 60: 58. 9. 

 stygia (Say). General in south. Canada and U. S. Host: Cicindelid larvae. 



Mutilla (Methoca (!)) pacalis Harris, 1835. In Hitchcock, Rpt. Geol. Mineral. Bot. Zool. 

 Mass., p. 587. Nom. nud. 



Tengyra stygia Say, 1836. Boston Jour. Nat. Hist. 1: 299. 6. 



Methoca (!) bicolor Say, 1836. Boston Jour. Nat. Hist. 1: 299. 9. 



Methoca (!) cayiadensis Smith, 1855. Cat. Hym. Brit. Mus., v. 3, p. 67. <J. 



Taxonomy: Evans, 1965. Ent. Soc Wash., Proc 67: 88-90, figs. 1-5 (larva). 

 Biology: Williams, 1916. Psyche 23: 121-125, pi. 12. 



Subfamily MYRMOSINAE 



The Myrmosinae have as hosts the larvae of small ground-nesting wasps and bees. 

 Brothers (1975) transferred this subfamily to the Mutillidae. 



Revision: Krombein, 1940. Amer. Ent. Soc, Trans. 65: 415-465, pi. 24. 



Taxonomy: Wasbauer, 1974 (1973). Pan-Pacific Ent. 49: 335 (key to female genera). 



Genus MYRMOSA Latreille 



Genus MYRMOSA Subgenus MYRMOSA Latreille 



Myrmosa Latreille, 1796. Precis Caract. Gen. Ins., p. 118. 



Type-species: Myrmosa atra Panzer. First included species. 

 Ischioceras Provancher, 1882. Nat. Canad. 13: 8. 



Type-species: Ischioceras rugosa Provancher. First included species. 



Morphology: Reid, 1941. Roy. Ent. Soc London, Trans. 91: 384-385, figs. 11-14 (female, male 

 thorax). 

 blakei Bradley. N. Y., Va. 



Myrmosa (Myrmosa) blakei Bradley, 1917. Amer. Ent. Soc, Trans. 43: 251. 9. 



Taxonomy: Krombein, 1940. Amer. Ent. Soc, Trans. 65: 438. 9. 

 bradleyi Roberts. Wash., Calif. 



Myrmosa bradleyi Roberts, 1929. Psyche 36: 362. S. 



Taxonomy: Krombein, 1940. Amer. Ent. Soc, Trans. 65: 436-438, fig. 2. 6, 9. 



Biology: Linsley, 1960. Pan-Pacific Ent. 36: 36 (mating behavior). 

 peculiaris Krombein. Kans. (Onaga). 



Myrmosa (Myrrnosa) peculiaris Krombein, 1940. Amer. Ent. Soc, Trans. 65: 438. 9. 

 unicolor Say. N. B. south to N. C, west to B. C. and Ariz. Host: Tiphia sp.; Lindenius 

 columbianus errans (Fox) ?; Dialictus pruinosus (Robt.); D. inconspicuus (Sm.). 

 Myrmosa unicolor Say, 1824. In Keating, Narr. Long's 2nd. Exped., v. 2, p. 331. 6. 



