Superfamily SPHECOIDEA 1635 



parvus Fox. N. Mex. (Las Cruces). 



Plenocuhdi parvus Fox, 1897. Ent. News 8: 71. 9. 

 propinquus Fox. Wash, to Calif, east to Idaho, Colo., N. Mex. Ecology: Nests in open sand. 

 Prey: Lijgns desertus Knight, Miridae sp.; adults. 



Plenoculus propinquus Fox, 1894 (1893). Acad. Nat. Sci. Phila., Proc. 45: 537. 9. 



Plenocuius propinquus var. rufescens Cockerell, 1898. Davenport Acad. Sci., Proc. 7: 144. 



Biology: Kurczewski, 1968. Kans. Ent. Soc, Jour. 41: 181, 191, 197, 198, 202 (nest, prey 

 transport, egg). —Evans, 1970. Mus. Compar. Zool., Bui. 140: 488 (nest, prey). 



sinuatus Williams. Southern Calif. 



Plenoculus sinuatus Williams, 1960. Calif. Acad. Sci., Proc. (4) 31: 7, figs. 30, 32, 35. 9, c?. 



stygius Williams. Southern Calif, and Ariz. Prey: Miridae sp. 



Plenoculus stygius Williams, 1960. Calif. Acad. Sci., Proc. (4) 31: 31, figs. 5, 62, 90. 9, <J. 



Biology: Williams, 1960. Calif. Acad. Sci., Proc. (4) 31: 46 (prey). 

 timberlakei Williams. Southern Calif, and Ariz. 



Plenoculus timberlakei Williams, 1960. Calif. Acad. Sci., Proc. (4) 31: 11, figs. 2, 11, 19-22, 

 31,38,47,49,52,77. 9, (5. 



Genus SOLIERELLA Spinola 



Solierella Spinola, 1851. In Gay, Hist. Fis. Pol. Chile, Zool., v. 6, p. 349. 



Type-species: Solierella tniscoplioides Spinola. Monotypic. 

 Silaon Piccioli, 1869. Soc. Ent. Ital., Bol. 1: 282. 



Type-species: Silaon compedita Piccioli. Monotypic. 

 Sylaon Piccioli, 1870. Soc. Ent. Ital., Bol. 2: pi. 1. Lapsus or emend. 

 Niteliopsis Saunders, 1873. Ent. Soc. London, Trans., p. 410. 



Type-species: Niteliopsis pisonoides Saunders. Monotypic. 

 Ammosphecidium Kohl, 1878. Zool.-Bot. Gesell. Wien, Verh. 27: 701. 



Type-species: Amniosphecidiuni Helleri Kohl. Monotypic. 

 Sylaon Kohl, 1885. Zool.-Bot. Gesell. Wien, Verh. 34: 290. Emend, or lapsus. 

 Lautara Herbst. 1920. Mus. Nac. Chile, Bol. 11: 217. 



Type-species: Lautara Jaffueli Herbst. Monotypic. 



Our species usually build multicelled nests in pre-existing cavities in lumber, twigs, stems, 

 galls, nut hulls, or in abandoned burrows in the ground. The prey of some North American spe- 

 cies has been recorded as Hemiptera of several families, Acrididae and Psocoptera. 



Revision: Williams, 1950. Calif. Acad. Sci., Proc. (4) 26: 355-417 (Calif, spp.). 



Taxonomy: Rohwer, 1909. Amer. Ent. Soc, Trans. 35: 108-110 (key to some spp.). 

 abdominalis Williams. Calif. 



Solierella abdominalis Williams, 1950. Calif. Acad. Sci., Proc. (4) 26: 381. 9,6. 

 affinis (Rohwer). Kans., Colo., Wyo., Idaho, Calif. Ecology: Nests in soil, possibly in 

 pre-existing burrows, stores 4 or more prey per cell. Prey: Nabis sp. nymphs. 

 Niteliopsis affinis Rohwer, 1909. Amer. Ent. Soc, Trans. 35: 113. 9, i. 



Biology: Evans, 1970. Mus. Compar. Zool., Bui. 140: 488-489 (nest, prey). 

 albipes (Ashmead). Colo., Idaho, Calif. 



Plenoculus albipes Ashmead, 1899. Psyche 8: 339. 6. 

 arcuata Williams. Calif. (San Rafael, Menlo Park). 



Solierella arcuata Williams, 1950. Calif. Acad. Sci., Proc. (4) 26: 378. 9, 6. 



australis Williams. Calif. (Riverside). 



Solierella australis Williams, 1950. Calif. Acad. Sci., Proc. (4) 26: 379. 9, d. 



bicolor Williams. Calif. 



Solierella bicolor Williams, 1950. Calif. Acad. Sci., Proc (4) 26: 382. 9. 

 blaisdelli (Bridwell). Calif., Ariz., Idaho. Ecology: Nests in stems of Eriogonum, sumac, 



elderberry, raspberry, and in borings in wood. Parasite: Pseudolopyga faylori (Bod.), 



