1644 Hymenoptera in America Nortii of Mexico 



Tnjpoxylon (Trypoxylon) adelpliiae Sandhouse, 1940. Amer. Midland Nat. 24: 151. 9,6. 



Taxonomy: Evans, 1957. Amer. Ent. See, Trans. 83: 97, fig. 61 (larva). 



Biology: Rau and Rau, 1918. Wasp Studies Afield, pp. 137-139 (nest, prey). — Rau, 1922. 

 Acad. Sci. St. Louis, Trans. 24: 22 (nest ?). — Krombein, 1952. Amer. Ent. See, Trans. 78: 

 93 (prey). —Krombein, 1967. Trap-nesting wasps and bees, pp. 229-231 (nest, prey, life 

 cycle, cocoon). 



kolazyi Kohl. N. Y. to Ga., W. Va., 111., Mo.; Austria, Mediterranean area. Ecology: Nests in 

 abandoned anobiid borings in structural lumber and in trap-nests. Adventive from 

 Europe. Parasite: Trichrysis doriae (Grib.). Prey: Tenvesseellum fontiicum (Em.); 

 Micryphantidae sp.; adults and subadults. 



Trypoxylon Kolazyi Kohl, 1893. Zool.-Bot. Gesell. Wien, Verhandl. 43: 29. S, 9. 



Trypoxylon (Trypoxylon) backi Sandhouse, 1940. Amer. Midland Nat. 24: 164, figs. 18, 74, 

 75. 9,6. N. syn. (R. E. Coville). 



Biology: Sandhouse, 1940. Amer. Midland Nat. 24: 165 (nest). —Krombein, 1958. Biol. Soc. 

 Wash., Proc. 71: 21-22 (nest, prey). —Thomas, 1962. Amer. Midland Nat. 67: 364 (parasite). 

 — Krombein, 1967. Trap-nesting wasps and bees, pp. 227-228 (nest, prey, life cycle). 

 pennsylvanicum pennsylvanicum Saussure. Que. and Maine to Fla. west to Colo, and Tex. 

 Ecology: Nests in cavity in twig. Prey: Araneidae sp. immature. Another subsp. occurs 

 in Japan. 

 Trypoxylon pennsylvaniciini Saussure, 1867. Reise d. Novara, Zool. 2, Hym., p. 82. 9. 



Biology: Sandhouse, 1940. Amer. Midland Nat. 24: 160 (nest). —Krombein, 1961. Brooklyn 

 Ent. Soc, Bui. 56: 64 (prey). 

 regulare Viereck. Mo., Kans. 



Trypoxylon regularis Viereck, 1906. Amer. Ent. Soc, Trans. 32: 205. "9" = 6. 

 sculleni Sandhouse. Mont, to Ariz, west to B. C. and Calif. Ecology: Nests in cavities in twigs, 

 SavibiiCHS, Rhus glabra, and Eriogonum, and in trap stems. Parasite: Anthrax irroratus 

 Say; Trichrysis doriae (Grib.). 

 Trypoxylon (Trypoxylon) sculleni Sandhouse, 1940. Amer. Midland Nat. 24: 160, figs. 15, 

 52,58,59,65. 9,6. 



Biology: Sandhouse, 1940. Amer. Midland Nat. 24: 162 (nest). —Parker and Bohart, 1966. 

 Pan-Pacific Ent. 42: 95 (nest, parasites). 



Species Group Rufidens 



bridwelli Sandhouse. Tex. (Brownsville). 



Trypoxylon (Trypoxylon) bridwelli Sandhouse, 1940. Amer. Midland Nat. 24: 168, figs. 24, 

 40. 6. 

 richardsi Sandhouse. Ont., N. Y. to Fla., west to Mich., Ind., Mo., Ala., Tex. Ecology: Nests in 

 cavity in twig of Chionanthus virgiyiiana and in twig gall on oak. Prey: Small spiders. 

 Trypoxylon (Trypoxylon) richardsi Sandhouse, 1940. Amer. Midland Nat. 24: 167, figs. 22, 

 42,43. 9, 6. 



Biology: Sandhouse, 1940. Amer. Midland Nat. 24: 168 (nest). —Krombein, 1959. Biol. Soc. 

 Wash., Proc. 72: 101-102 (nest, prey, life cycle). 

 timberlakei Sandhouse. Ariz., Calif. Ecology: Nests in deserted gall of Callirhytis haynifoiinis 

 (Bass.) on Quercus wislizenii. 

 Trypoxylon (Trypoxylon) timberlakei Sandhouse, 1940. Amer. Midland Nat. 24: 169. 9. 



Biology: Krombein, 1951. U. S. Dept. Agr., Monog. 2: 956 (nest). 



Species Group Scutatum 



carinatum Say. U. S. east of 100th meridian north to Mass. Ecology: Reared from burrow in 

 partly decayed trunk of tulip-tree, also nests in borings in wood. Prey: Theridion 

 lyricum Walck. 

 Trypoxylon carinatus Say, 1837. Boston Jour. Nat. Hist. 1: 374. <J. 



Biology: Sandhouse, 1940. Amer. Midland Nat. 24: 154 (nest). —Krombein, 1967. Trap-nesting 

 wasps and bees, pp. 228-229 (nest, prey, life cycle, cocoon). 



