1236 Hymenoptera in America North of Mexico 



Chrysis subg. Ischnochrysis Haupt, 1956. [Dresden] Mus. f. Tierkunde u. Voelkerk., 

 Abhandl. u. Ber. 23: 73. 



Type-species: Chrysis gracillima Foerster. Orig. desig. 



The known life histories indicate that the female Chrysura deposits her egg in a host cell at 

 the time that it is being provisioned. The parasite egg hatches after that of the host and the 

 newly hatched Chrysura larva attaches to the host body, imbibes a small amount of body fluids, 

 but does not molt until the host larva spins its cocoon and enters the resting stage. The Chrysu- 

 ra larva then molts, devours the host larva, and spins its cocoon within that of the host. Develop- 

 ment to the adult stage and emergence from the nest is synchronized with the host. In vernal 

 univoltine species the host and parasite transform to adults late in the summer and overwinter 

 in the cocoons. 



In addition to the hosts listed below for some of the species, Thorp (1968. Kans. Ent. Soc, 

 Jour. 41: 324-331) pubUshed life history notes on a species near pacifica (Say) which parasitized 

 Proteriades bunocephala (Mich.) in California. 



boharti Horning. B. C, Wash., Idaho, Calif., Wyo. 



Chrysura boharti Horning, 1971. Pan-Pacific Ent. 47: 29, figs. 2, 5, 8, 9, 11, 13. S, 9. 

 cobaltina (Aaron). Mass., Mich., Ind., 111., Mont., Wyo., Utah, Calif., Wash., B. C. 



Chrysis cobaltina Aaron, 1885. Amer. Ent. Soc, Trans. 12: 228. 9. 



Chrysis lateri-dentata Aaron, 1885. Amer. Ent. Soc, Trans. 12: 228. 9. 

 crescentis Horning. U. Sonor. and Transit. Zones in central and southern California. 



Chrysura crescentis Horning, 1971. Pan-Pacific Ent. 47: 27, figs. 1, 3, 4, 6, 7, 10, 12. S, 9. 

 densa (Cresson). Wash., Idaho, Oreg., Calif., Nev., Utah, Ariz., Wyo., Colo., Tex. Host: 



Pseudomasaris edwardsii (Cr.); P. vespoides (Cr.); P. zonalis (Cr.). Hosts nest in mud 

 cells attached to rocks. 



Chrysis densa Cresson, 1865. Ent. Soc Phila., Proc 4: 307. 9. 



Biology: Hicks, 1927. Canad. Ent. 59: 78 (host record). —Hicks, 1929. Canad. Ent. 61: 122 

 (host record). 

 inusitata Aaron. B. C, Oreg., Calif., Utah, Colo., N. Y., Va. 



Chrysis inusitata Aaron, 1885. Amer. Ent. Soc, Trans. 12: 227. S. 

 Chrysis optima Aaron, 1885. Amer. Ent. Soc, Trans. 12: 227. 9. 

 Chrysis (kolochrysis) interfata du Buysson, 1908. Rev. Ent. Caen 27: 208. 

 kyrae Krombein. Md. to Ga., Ind., Mo., Colo., Utah, Idaho, B. C, Wash., Oreg., Calif. Host: 

 Osmia I. lignaria Say in borings in wood. 

 Chrysura kyrae Krombein, 1963. Ent. News 74: 150. cJ, 9. 



Biology: Krombein, 1963. Ent. News 74: 152 (life history). —Krombein, 1967. Trap-nesting 

 wasps and bees, pp. 444-445, figs. 87, 88, 128-130 (life history). 

 martia (Patton). Lower Canada, Mich. 



Chrysis martia Patton, 1879. Canad. Ent. 11: 67-68. 

 pacifica (Say). Transcontinental in U. S. and Canada. Host: Osmia kincaidii Ckll., 0. pumila 

 Cr., 0. tanneri Sandh., 0. georgica Cr., 0. nigrifrons Cr., 0. coloradensis Cr. Predator: 

 Philanthus pulcher D. T. 

 Chrysis pacifica Say, 1828. Contrib. Maclur. Lye Phila. 1: 82. 

 Chrysis hilaris Dahlbom, 1854. Hym. Europaea, v. 2, p. 103. 

 Chrysis halictula Gribodo, 1874. Mus. Civ. Stor. Genova, Ann. 6: 359. 

 Chrysis resecta Gribodo, 1879. Mus. Civ. Stor. Nat. Genova., Ann. 14: 336. N. syn. (R. M. 

 Bohart). 



Taxonomy: Krombein, 1963. Ent. News 74: 149-150. —Horning, 1971. Pan-Pacific Ent. 47: 31. 



Biology: Parker and Bohart, 1966. Pan-Pacific Ent. 42: 97 (host record). —Krombein, 1967. 

 Trap-nesting wasps and bees, pp. 446-447, fig. 131 (life history). —Parker, 1975. 

 Pan-Pacific Ent. 51: 182 (host). —Hawkins, 1975. Kans. Ent. Soc, Jour. 48: 498 (host). 

 smaragdicolor (Walker) B. C. to Calif., Idaho, Wyo., Utah, N. Mex., Colo., N. Dak. Host: 

 Osmia longula Cr. 

 Chrysis smaragdicolor Walker, 1866. In Lord, Naturalist in Vancouver Isl. and B. C, v. 2, 

 p. 343. 



