1702 Hymenoptera in America North of Mexico 



Biology: Evans, Lin and Yoshimoto, 1954. Ent. News 65: 5-11 (nest, prey transport, parasite 

 ?). 



Subfamily STIZINAE 



All species nest in the ground. 



Revision: Handlirsch, 1892. Akad. Wiss. Wien, Math.-Nat. Kl., Sitzber. 101: 25-181, 3 pis. (spp. 

 of world). -Fox, 1896 (1895). Acad. Nat. Sci. Phila., Proc. 47: 266-268 (N. Amer. spp.). 

 —Parker, 1929. U. S. Natl. Mus., Proc. 75 (5): 7-11, figs. 1-6 (N. Amer. genera). 



Genus STIZUS Latreille 



Stizus Latreille, 1802-1803. Hist. Nat. Crust. Ins., v. 3, p. 344. 



Type-species: Stizus nificomis Fabricius. Desig. by Blanchard, 1846 {=Larra 

 ruficoi-nis Fabricius). 

 Megastizus Patton, 1879. U. S. Geol. Geog. Survey, Bui. 5: 344. 



Type-species: Stizus brevipennis Walsh. Orig. desig. 

 Stizolarra Saussure, 1887. Soc. Ent. 2: 9. 



Type-species: Sphex vespifomiis Fabricius. Desig. by Pate, 1937. 

 Megalostizus Schulz, 1906. Spolia Hym., p. 199. Emend. 



This very large genus occurs in the Holarctic and Ethiopian Regions; it is also present in parts 

 of the Oriental Region, though apparently absent from Southeast Asia. Several species have 

 been reported to prey upon grasshoppers, katydids, and, rarely, mantids. 



Revision: Dow, 1941. Psyche 48: 171-181, 7 figs. (N. Amer. spp.). 

 brevipennis Walsh. U. S. east of 100th meridian. Prey: Conocephalus sp. adult. 

 Stizus brevipennis Walsh, 1869. Amer. Ent. 1: 162. i. 

 Larra Brendeli Taschenberg, 1875. Ztschr. Gesam. Naturw. Halle 45: 361. S. 



Biology: Williams, 1914 (1913). Kans. Univ. Sci. Bui. 8: 198 (prey). 



Morphology: Snodgrass, 1941. Smithsn. Inst., Misc. Collect. 99 (14): pi. 19, figs. A-G (male 

 genitalia). 

 iridis Dow. Utah, Calif. Ecology: Makes a unicellular cell in talus slope, stores at least 8 prey 

 per cell. Prey: Trimerotropis pallidipennis (Burm.), T. sparsa (Thom.); adults. 

 Stizus iridis Dow, 1942 (1941). Psyche 48: 171. 3. 



occidentalis Parker. Calif., Ariz. 



Stizus occidentalis Parker, 1929. U. S. Natl. Mus., Proc. 75 (5): 9. 9, cj. 

 texanus Cresson. Tex., Ariz.; Mexico (Chihuahua). 



Stizus texanus Cresson, 1872. Amer. Ent. Soc, Trans. 4: 222. 9,6. 



Genus STIZOIDES Guerin 



Revision: Gillaspy, 1963. Mus. Compar. Zool., Bui. 128: 369-391, 1 pi. (N. Amer. spp.). 

 Genus STIZOIDES Subgenus STIZOIDES Guerin 



Stizus subg. Stizoides Guerin, 1844. Iconogr. Regn. Anim. 7, Ins., p. 438. 

 Type-species: Larra fasciata Fabricius. Desig. by Parker, 1929. 



The typical subgenus does not occur in North America. 



Genus STIZOIDES Subgenus TACHYSTIZUS Pate 



Tachystizus Pate, 1937. Amer. Ent. Soc, Mem. 9: 63. 



Type-species: Crabro tridentatus Fabricius. Orig. desig. 



Two species of this subgenus are known to be cleptoparasites of other sphecoid wasps. 



foxi Gillaspy. Ariz.; Mexico (Baja California). 



Stizoides (Tachystizus) foxi Gillaspy, 1963. Mus. Compar. Zool., Bui. 128: 378, figs. 1, 2, 5, 7, 

 9, 11. 9, d. 



