Superfamily SPHECOIDEA 1683 



confluenta (Say). South. Canada and U. S. in Transit, and Austr. Zones; Mexico (Chihuahua). 



Ecology: Nests in decaying logs, in borings in wooden posts and in pith of catalpa stem, 



stores 6 prey per cell. Prey: Adults of moth spp. 

 Soleniiis inten'iipfus Lepeletier and Brulle, 1834. Soc. Ent. France, Ann. 3: 716. 9. Preocc. 



in Crabro. 

 Crabro confluentus Say, 1837. Boston Jour. Nat. Hist. 1: 376. 9,6. 

 Crabro diibius Smith, 1856. Cat. Hym. Brit. Mus., v. 4, p. 417. N. name. 

 Crabro confluens Leconte, 1859. Ent. of N. Amer. (Thos. Say), p. 758. Lapsus. 

 Crabro bel'lus Cresson, 1865. Ent. Soc. Phila., Proc. 4: 481. 9. 

 Crabro atrifrons Cresson, 1865. Ent. Soc. Phila., Proc. 4: 483. 6. 

 Crabro ebunieus Taschenberg, 1875. Ztschr. Gesam. Naturw. Halle 45: 383. 6. 

 Crabro cinctibellus Viereck, 1908. Amer. Ent. Soc, Trans. 33: 401. 9,6. 

 Crabro opwana Rohwer, 1908. Ent. News 19: 248. 6. 



Crabro (Solenius) toumsendi Rohwer, 1911. U. S. Natl. Mus., Proc. 40: 563. 9. 

 Crabro (Solenius) planaris Mickel, 1916. Amer. Ent. Soc, Trans. 42: 427. 6. 

 Solenius seaniansi Carter, 1925. Canad. Ent. 57: 135. 6. 



Taxonomy: Pate, 1947. Notulae Nat. 185: 13-14 (synonymy). 



Biology: Peckham and Peckham, 1905. Wasps, Social and Solitary, pp. 102-105, 1 fig. (nest, 

 prey). — Rau, 1922. St. Louis Acad. Sci., Trans. 24: 19-20 (nest). — Rau, 1928. Acad. Sci. St. 

 Louis, Trans. 25: 378 (nest, cocoon, life cycle). 



Morphology: Snodgrass, 1941. Smithsn. Inst., Misc. Collect. 99 (14): pi. 20, figs. 0, R (male 

 genitalia). 

 producticollis (Packard). Transcont. in Canada and U. S. in Transit, and U. Austr. Zones. 

 Crabro producticollis Packard, 1866. Ent. Soc. Phila., Proc. 6: 76. 6. 

 Crabro i-maculatus Provancher, 1882. Nat. Canad. 12: 102. 9. Typ. err. ? Preocc. 

 Crabro i-pu7ictatus Provancher, 1883. Faune Ent. Canad., Hym., p. 653. 6. Preocc. 



Nomina Nuda in CRABRONINAE 



glauconotatus Harris. Mass. 



Crabro glauconotatus Harris, 1835. In Hitchcock, Rpt. Geol., Mineral, Bot., Zool., Mass., p. 

 588. 



Family MELLINIDAE 



This small family contains only two subfamilies, Xenosphecinae and Mellininae, which appear 

 to be more closely related to one another than either is to any other family of Sphecoidea. The 

 former subfamily is known only from the southwestern deserts of North America. The latter is 

 Holarctic and Neotropical in distribution. Both subfamilies nest in the ground and prey upon 

 Diptera. 



Subfamily XENOSPHECINAE 



Genus XENOSPHEX Williams 



Xenosphex Williams, 1954. Wasmann Jour. Biol. 12: 97. 



Type-species: Xenosphex xerophila Williams. Orig. desig. 



Revision: Parker, 1966. Pan-Pacific Ent. 42: 190-195, 8 figs. 

 boharti Parker. Calif. (Inyo Co.). 



Xenosphex boharti Parker, 1966. Pan-Pacific Ent. 42: 191, figs. 1, 2, 6, 7. d, 9. 

 timberlakei Williams. Southeast. Calif., northwest. Ariz., south. Nev. Ecology: Nests in sand. 

 Prey: Lordotus viiscellus Coq. 

 Xenosphex timberlakei Williams, 1955. Wasmann Jour. Biol. 13: 313. 9. 



Biology: Parker, 1966. Pan-Pacific Ent. 42: 194-195 (nest, prey transport). 

 xerophilus Williams. South. Calif, and Nev., northwest, and south. Ariz. 



Xenosphex xerophila Williams, 1954. Wasmann Jour. Biol. 12: 99, figs. 1-6. 6 (9 misdet.). 



Taxonomy: Williams, 1955. Wasmann Jour. Biol. 13: 313. 9. 



