1226 Hymenoptera in America North of Mexico 



Genus HEDYCHRIDIUM Abeille de Perrin 



Hedychridium Abeille de Perrin, 1878. Diagn. Chrysid. Nouv., p. 3. 



Type-species: Hedychrum minutum Lepeletier. Desig. by Ashmead, 1902 

 {=Chrysis ardens Coquebert). 



Most species of Hedychridium parasitize ground-nesting wasps and bees, but one has been 

 recorded as parasitizing a twig-nesting sphecid wasp. 



amabile Cockerell. Calif., Ariz., Nev., Utah, N. Mex.; Mexico (Baja California, Sonora). 



Hedychridium amabile Cockerell, 1903. Canad. Ent. 35: 262. 

 caeruleum (Norton). N. J., Ind., 111., Iowa, N. Dak., Mont. 



Hedychrum caeruleum Norton, 1879. Amer. Ent. Soc, Trans. 7: 239. 9. 

 cockerelli du Buysson. Colo., S. Dak. 



Hedychridium cockerelli du Buysson, 1906. Rev. Ent. Caen 25: 111. 6. 

 dimidiatum (Say). Throughout U. S. and Canada; Mexico. 



Hedychrum dimidiatum Say, 1824. In Keating, Narr. Long's 2nd Exped., v. 2, App., p. 330, 



n. 2. 

 Chrysis Mexicana Cameron, 1888. Biol. Cent.-Amer., Hym., v. 1, p. 460. N. syn. (R. M. 



Bohart). 

 Holopyga (Hedychridium) mexicana Mocsary, 1911. Mus. Nat. Hungarici, Ann. 9: 448. 6. 

 N. syn. (R. M. Bohart). 

 fletcheri Bodenstein. Western U. S. and Canada to Ind. and Sask., Ala., Fla. Host: Tachysphex 

 similis Roh. Predator: Philanthus pulcher D. T. 

 Hedychrum viride Cresson, 1865. Ent. Soc. Phil., Proc. 4: 306. Preocc. 

 Hedychridium fletcheri Bodenstein, 1951. U. S. Dept. Agr. Monog., 2: 720. N. name. 



Biology: Kurczewski, 1967. Kans. Ent. Soc, Jour. 40: 278-284, 1 fig. (life history, behavior). 

 semirufum (Cockerell). N. Mex., Ariz. 



Holopyga semirufa Cockerell, 1896. Psyche (sup.) 7: 17. 9. 

 solierellae Bohart and Brumley. Western U. S., B. C; Mexico (Baja California). Host: 

 Solierella affinis blaisdelli (Bridw.); S. peckhami (Ashm.). 

 Hedychridium solierellae Bohart and Brumley, 1967. Pan-Pacific Ent. 43: 234. cj, 9. 



Taxonomy: Carrillo and Caltagirone, 1970. Ent. Soc. Amer., Ann. 63: 679-680, figs. 13-15 (egg, 

 larvae, pupa, cocoon). 



Biology: Carrillo and Caltagirone, 1970. Ent. Soc. Amer., Ann. 63: 679-680, figs. 13-15 (life 

 history). 



Genus HEDYCHRUM Latreille 



Hedychrum Latreille, 1802. Hist. Nat. Crust. Ins., v. 3, p. 317. 



Type-species: Hedychrum lucidulum Latreille. Monotypic (=Sphex nobile Scopoli). 

 Hedycrum (!) Say, 1825. In Keating, Narr. Long's 2nd Exped., v. 2, App., p. 65. 



Wasps of this genus are parasitic on ground-nesting wasps and bees. 



confusum du Buysson. U. S. and Canada west to N. Mex., Wyo., Sask. Host: Cerceris halone 

 Bks., C. architis Mick. 



Hedychrum confusum du Buysson, 1891. Rev. Ent. Caen 10: 30. 6, 9. 



Hedychrum nearcticum Mocsary, 1914. Mus. Nat. Hungarici, Ann. 12: 11. 9. N. syn. (R. M. 

 Bohart). 

 cupricolle Cresson. Alta., Colo., Kans., Nebr., Minn. 



Hedychrum cupricolle Cresson, 1865. Ent. Soc. Phila., Proc. 4: 305. 9. 

 louisianiae Norton. N. C, Fla. west to N. Mex., Mo., Kans., Colo.; Mexico (Mexico). 



Hedychrum Louisianiae Norton, 1879. Amer. Ent. Soc, Trans. 7: 238. 6. 



Hedychrum LouisianaeO.) Aaron, 1885. Amer. Ent. Soc, Trans. 12: 223. Emend. 

 nigropilosum Mocsary. Western U. S. and Canada to Wyo., Colo., Alta. 



Hedychrum nigropilosum Mocsary, 1889. Monog. Chrysid., p. 162. i. 

 parvum Aaron. Transcontinental in U. S., Man., Alta., B. C, N. W. T. 



Hedychrum violaceum var. parvuyn Aaron, 1885. Amer. Ent. Soc, Trans. 12: 223. 



