Superfamily SPHECOIDEA 1715 



Species Group Pruinosa 



The two species of this group make deep, complex unicellular nests, place the egg flat in the 

 empty cell, and remove prey remains from the cell. 



occidentalis Fox. West, and southwest. U. S.; north. Mexico. Ecology: Makes complex 



unicellular nest in sand dunes, sometimes in large aggregations, lays egg in empty cell, 

 cleans nest frequently so number of prey provided is unknown. Parasite: Dasymutilla 

 sackenii (Cr.); Villa atrata (Coq.), V. vielasoma Wulp, Exoprosopa eremita 0. S.; 

 Physocephala affinis Will. Prey: Stratiomys laticeps Lw.; Apatolestes villosuius Big., 

 Chrysops sp., Taba7ius punctifer 0. S.; Aphoebayitus tardus Coq., A. sp.. Villa siyiuosa 

 Wied., V. sp. near agrippina 0. S.; Psilocephala costalis Lw.; Apiocera haruspex 0. S., 

 A. sp.; Eristalis latifrons Lw., Helophilus latifrons Lw., Lejops iululatus Meig., 

 Melanostoma rostratum Big., Metasyrphus meadii Jones; Anacaynpta latiuscula Lw.; 

 Miisca domestica L., Paregle ciyierella Fall.; Calliphora erythrocephala Meig., Lucilia 

 illustris Meig., Phaenicia sericata Meig., Phormia regina Meig.; Sarcopliaga bullata 

 Prkr., S. sp.; Aphria ocypterata Tns. Predator: Proctacanthus occidentalis Hine. 



BeynbexV.) occidentalis Fox, 1893. Calif. Acad. Sci., Proc. (2) 4: 10. 6, 9. 



BembexC.) beuteyiynuelleri Fox, 1901. N. Y. Ent. Soc, Jour. 9: 83. 6. 



Benibex{]) obsolete Howard, 1901. Insect Book, pi. 4, fig. 36. 



Taxonomy: Evans and Lin, 1956. Amer. Ent. Soc, Trans. 82: 58, figs. 85-87 (larva). 



Biology: Coquillett, 1895. Ent. Soc. Wash., Proc. 3: 236-237 (nest, prey; misdet. as ciyierea 

 Handl.). — Bohart and MacSwain, 1939. South. Cahf. Acad. Sci., Bui. 38: 84-98 (mating, 

 nest, prey, parasites). —Ross, 1953. Insects close up, pp. 42-43, 5 figs, (nest, prey, cocoon, 

 parasites). —Evans, 1957. Studies on compar. ethology Beynbix, pp. 167-181, figs. 47-49 

 (mating, nest, prey). 

 pruinosa Fox. U. S.; Mexico. Ecology: Nests in large aggregations in loose sand, frequently in 

 dunes, makes a long unicellular nest sometimes with an accessory burrow, places egg in 

 empty cell, provides 20-30 prey per cell, placing later flies in a long single file. Parasite: 

 Dasymutilla bioculata (Cr.); Pamopes edwardsii (Cr.)?; Physocephala texana Will.; 

 Exoprosopa fascipennis (Say), E. areyiicola Johns, and Johns., Villa atrata (Coq.); 

 Seyiotaiyiia iyiyoeyisis Reinh.? Prey: Ayioplodoyita yiigrirostris Lw., Eulalia ciyicta Oliv., 

 Odoyitomyia tnynida Bks., Stratiomys jaynesi Steysk., S. yiorma Wied.; Chrysops flavida 

 Wied., Tabayius eqtialis Hine, T.fulvulus Wied., T. liyieola F., T. prodyictus Hine, T. 

 quiyiquevittatus Wied., T. sulcifroyis Macq., T. trispilus Wied., T. vittiger schwardti Phil.; 

 Anastoechus barbatus 0. S., Aphoebayitus sp., Bombylius ynedorae Paint., Exoprosopa 

 fascipeymis (Say), E. divisa Coq., Heterostylum robustum 0. S., Lepidayithrax 

 proboscidea Lw., Poecilanthrax iucifera F., P. sackeyiii Coq., P. willistoyii Coq., Villa 

 alteryiata Say, V. cypris Meig., V.faustiyia 0. S., V.fulviayia yiigricauda Lw., V. 

 lateralis Say, V. ynolitor Lw.; Psilocephala aldrichii Coq., P. haemorrhoidalis Macq.; 

 Plagioyieurus uyiivittatus Lw.; Asemosyrphus polygraynmus Lw., Eristalis albifroyis 

 Wied., E. arbustorum L., E. brousii Will., E. latifroyis Lw., E. teyiax L., E. viyietoruyn F., 

 Eupeodes volucris 0. S., Helophilus latifroyis Lw., Platycheirus erraticus Curr., Rhiyigia 

 yiasica Say, Sericoynyia chrysotoxoides Macq., Sphaerophoria robusta Curr., Syrphus 

 rectus 0. S., S. forvus 0. S., Xylota metallica Wied.; Ceroxys latiuscuius Lw.; 

 Hydrophoria divisa Meig.; Liynyiophora yiarona Wlkr., Lispe cotidiayia Snyd., L. yiasoyii 

 Stein, Musca autumyialis DeG., M. domestica L., Musciyia assimilis Fall., M. dorsiliyiea 

 Wulp, Orthellia caesarioyi Meig., Pyrellia cyayiicolor Zett., Stoynoxys calcitrayis L.; 

 Bufolucilia silvaruyn Meig., Callitroga macellaria F., Eucalliphora lilaea Wlkr., Lucilia 

 illustris Meig., Phaeyiicia sericata Meig., Phormia regiyia Meig., Polleyiia rudis F.; 

 Amobia floyndeyisis (Tns.), Sarathroynyia feynoralis Sch., Sarcophaga derelicta Wlkr., S. 

 errabimda Wulp, S. Ihermiyiieri R.-Desv., S. querula Wlkr.; Achaetoyieura archippivora 

 Riley, Adyyioyitia sp., Archytas apicifera Wlkr., Paradidyyna affiyiis Reinh., Peleteria 

 eroyiis Curr., Spallayizayiia sp., Sitophaga sp., Wiyitheynia rufopicta Big. 

 BembexV.) pruiyiosa Fox, 1895. Acad. Nat. Sci. Phila., Proc. 47: 361. 6,9. 



Taxonomy: Evans and Lin, 1956. Amer. Ent. Soc, Trans. 82: 57, figs. 88-93 (larva). 



