1692 Hymenoptera in America North of Mexico 



Genus DIENOPLUS Fox 



Arpacfiis Jurine, 1807. Nouv. Meth. Class. Hym. Dipt., p. 192. Preocc. 



Type-species: Arpactits formosus Jurine. Desig. by Shuci<ard, 1837. 

 Harpactus Shuckard, 1837. Essay on Indig. Fossor. Hym., p. 221. Emend. 

 Harpactes Dahlbom, 1843. Hym. Europaea, v. 1, p. 147. Emend. Preocc. 

 Dienoplus Fox, 1894 (1893). Acad. Nat. Sci. Phila., Proc, 45: 548. 



Type-species: Dienoplus pictifrons Fox. Orig. desig. 



Most species occur in the Holarctic Region, but a few have been recorded from the Ethiopian 

 and Oriental Regions. A European species makes 2-15 cells per nest in sandy soil. Recorded prey 

 are leafhoppers and spittlebugs, both nymphs and adults. 



citipes Krombein. Fla., (Orlando, Arcadia). Ecology: Nests in flat sandy areas. 



Dienoplus citipes Krombein, 1954. Amer. Ent. Soc, Trans. 80: 20, figs. 9, 11, 13. cJ, 9. 

 gyponae (Williams). Kans., N. Mex., Alta. Ecology: Nests in sand, makes more than 2 cells per 

 nest, stores 4 prey per cell. Prey: Prairiana cinerea (Uhl.) adults and nymph. 



Harpactus gyponae Williams, 1914 (1913). Kans. Univ. Sci. Bui. 8: 223. 9. 



Biology: Williams, 1914 (1913). Kans. Univ. Sci. Bui. 8: 225-226, pi. 33, fig. 5 (nest, prey 

 transport). 

 mendicus (Handlirsch). B. C, Idaho. 



Gorytes mendicus Handlirsch, 1893. K. K. Naturhist. Hofmus., Ann. 8: 278. 9. 



pictifrons Fox. Idaho, Wash., Calif. Predator: Philanthus pulcher D. T. 



Dienoplus pictifrons Fox, 1894 (1893). Acad. Nat. Sci. Phila., Proc, 45: 549. 9,6. 

 Harpactus liowardi Ashmead, 1899. Ent. News 10: 9. 9. 



Genus HAPALOMELLINUS Ashmead 



Hapalomellinus Ashmead, 1899. Canad. Ent. 31: 300. 



Type-species: Gorytes exiniius Provancher. Orig. desig. 



This small genus occurs only in the desert areas of southwestern North America. 



Taxonomy: Bohart, 1971. Biol. Soc. Wash., Proc. 83: 452 (key to spp.). 

 albitomentosus (Bradley). Tex., N. Mex., Ariz., Calif. Ecology: Nests in level, dry sandy soil, 

 makes 1-2 cells per nest, one of which may be just a storage cell, and stores 14-15 

 leafhoppers per cell. Parasite: Senotainia sp. in trilineata (Wulp) complex? Prey: 

 Stragania robusta Uhl., mostly adults, but a few nymphs. 

 Gorytes exirnius Provancher, 1888. Addit. Corr. Faune Ent. Canada Hym., p. 274. 9. 



Preocc. 

 Gorytes (Arpactus) albitomentosus Bradley, 1920. Amer. Ent. Soc, Trans. 46: 121. 9, cJ. 



Biology: Cazier and Mortenson, 1965. Wasmann Jour. Biol. 22: 261-276 (nest, prey, parasite 

 ?). 

 pulvis Bohart. South. N. Mex., Ariz, and Calif. 



Hapalomellinus pulvis Bohart, 1971. Biol. Soc Wash., Proc. 83: 451. 9,6. 



teren Pate. Ariz., Calif. 



Hapalomellinus teren Pate, 1946. Ent. News 57: 237. 9. 



Genus TRICHOGORYTES Rohwer 



Trichogorytes Rohwer, 1912. U. S. Natl. Mus., Proc. 41: 469. 



Type-species: Trichogorytes argenteopilosus Rohwer. Orig. desig. 



The two known species occur in the southwestern deserts. 

 Revision: Pate, 1946. Brooklyn Ent. Soc, Bui. 41: 15-17. 

 argenteopilosus Rohwer. Ariz., Calif. 



Trichogorytes argenteopilosus Rohwer, 1912. U. S. Natl. Mus., Proc. 41: 470. 9. 



