Superfamily POMPILOIDEA 1571 



Rhopalosoma Cresson, 1865. Ent. Soc. Phila., Proc. 4: 58. 



Type-species: Rfiopalosoma Poeyi Cresson. Monotypic. 

 SihyUina Westwood, 1868. Ent. Soc. London, Trans, p. 329. 



Type-species: Sibyllhia aenigrtiatica Westwood. Monotypic (,=Rhopalosoma poeyi 

 Cr.). 



Revision: Brues, 1943. Ent. Soc. Amer., Ann. 36: 310-318, 1 pi. 

 nearcticum Brues. Md. south to Fla., Ky., Mo. Host: Orocharis saltator Uhler. 

 Rhopalosoma nearcticum Brues, 1943. Ent. Soc. Amer., Ann. 36: 316. 9,6. 



Biology: Hood, 1914 (1913). Ent. Soc. Wash., Proc. 15: 145-147, 1 fig. (Misdet. as R. poeyi 

 Cresson.) 



Genus OLIXON Cameron 



Olixon Cameron, 1887. Biol. Cent.-Amer. Hym., v. 1, p. 412. 



Type-species: Olixon testaceum Cameron. Monotypic. 

 Saphobethylus Kieffer, 1911. Soc. Sci. BruxeUes, Ann. (2) 35: 216. 



Type-species: Saphobethylus pallidus Kieffer. Monotypic. 

 Nealgoa Brues, 1922. Psyche 29: 105. 



Type-species: Nealgoa banksii Brues. Monotypic. 



This genus is unusual in that extreme brachyptery is equally developed in both sexes. The 

 species are much smaller than Rhopalosoma, have tiny ocelli and are diurnal. 



Taxonomy: Reid, 1939. Roy. Ent. Soc. London, Proc. 8: 101. 

 banksii (Brues). N. Y., D. C, N. C, Ga., Fla., Ohio, Minn., Kans. Host: Nemobius sp.; Hapithis 

 agitator Uhler. 

 Nealgoa banksii Brues, 1922. Psyche 29: 106. 9 . 



Biology: Krombein, 1950 (1949). Elisha Mitchell Sci. Soc, Jour. 65: 264-265 (male). 



