818 Hymenoptera in America North of Mexico 



Genus PSEUDOCATOLACCUS Masi 



Pseiidocatolacais Masi, 1908. Lab. Zool. Gen. e Agr. Portici, Bol. 3: 138. 

 Type-species: Pseudocatolaccus aspbondyliae Masi. Monotypic. 



Taxonomy: Burks, 1954. U. S. Dept. Agr., Tech. Bui. 1093: 14-15. 

 atnericanus Gahan. Tex., N. Mex. Idaho, Utah, Ariz. Ecology: Develops in galls on alfalfa, 

 Bidens, Larrea, possibly other plants. Host: Asphondylia sp., A. websteri Felt. 

 Pseudocatolaccus Aniericanus Gahan, 1919. Ent. Soc. Amer., Ann. 12: 164. 9, S. 



Taxonomy: Graham, 1969. Brit. Mus. (Nat. Hist.) Ent., Bui. Sup. 16: 695 (might be the same 

 as the European asphondyliae Masi). 



Genus PERIDESMIA Foerster 



PeridesDiia Foerster, 1856. Hym. Stud., v. 2, p. 65. No species. 



Type-species: Isocyrtus (Trichovialus) aquisgranensis Mayr. Desig. by Gahan, 1923. 



Taxonomy: Delucchi, 1956 (1955). Ztschr. f. Angew. Ent. 38: 147-150. 

 discus (Walker). Ga.; Europe. Ecology: Larva consumes eggs of Hypem inside alfalfa stems. 

 Introduced from Europe into CaUf. and Atlantic Coast states; known to be established 

 only in Ga. Host: Hypera postica (Gyll.). 

 Pteromalus discus Walker, 1835. Ent. Mag. 2: 482. 9. 

 Pterontalus subquadmtus Walker, 1836. Ent. Mag. 3: 478. "9" = 6. 

 Pteromalus Phyllus Walker, 1839. Monog. Chalcid., v. 1, p. 272. 9. 

 Peridesniia phytononii Gahan, 1923. Wash. Acad. Sci., Jour. 13: 410. 9, S. 



Taxonomy: Graham, 1956. Ent. Monthly Mag. 92: 246 (syn.). —Graham, 1969. Brit. Mus. (Nat. 

 Hist.) Ent., Bui. Sup. 16: 701-702. 



Biology: Chamberlin, 1924. Jour. Econ. Ent. 17: 625. —Flanders, 1935. Ent. Soc. Amer., Ann. 

 28: 438-444. —Strong, 1935. U. S. Dept. Agr., Bur. Ent. Plant Quar., Ann. Rpt. for 1935, p. 

 59. —Flanders, 1942. Ent. Soc. Amer., Ann. 35: 253 (eggs and ovaries). —Flanders, 1944. 

 Jour. Econ. Ent. 37: 410 (diapause). —Coles and Puttier, 1963. Jour. Econ. Ent. 56: 611. 



Morphology: Parker, 1924. Soc. Ent. de France, Ann. 93: 316 (larvae). —Miller, 1972. Ent. 

 Soc. Amer., Ann. 65: 1119-1124 (antennae). 



Genus SPANIOPUS Walker 



Spaniopus Walker, 1833. Ent. Mag. 1: 371, 466. 



Type-species: Spaniopus dissimilis Walker. Monotypic. 

 Polycelis Thomson, 1878. Hym. Scand., v. 4, pp. 131, 143. Preocc. by Ehrenberg, 1831. 



Type-species: Pteromalus co7ispersus Walker. Desig. by Ashmead, 1904. 

 Polyscelis Ashmead, 1894. Cincinnati Soc. Nat. Hist., Jour. 17: 52. Emend. Preocc. by 



Girard, 1850. 

 Neopolycelis Hincks, 1944. Roy. Ent. Soc. London, Proc. (B) 13: 38. N. name for Polycelis 

 Thomson. 



Taxonomy: Gahan, 1922. U. S. Natl. Mus., Proc. 61(24): 10-12. —Graham, 1956. Ent. Monthly 

 Mag. 92: 250. 

 dissimilis (Walker). Ont., Pa., Md., Va., 111.; Europe. Ecology: Either a primary or secondary 

 parasite of hosts developing in grass stems. Host: Mayetiola destructor (Say); 

 Platygaster zosiue Walk. 

 Spa)iiopus dissi)uilis Walker, 1833. Ent. Mag. 1: 466. S. 

 Polyscelis modest2is Gahan, 1922. U. S. Natl. Mus., Proc. 61 (24): 11. 9, c^. 



Taxonomy: Gahan, 1934 (1933). U. S. Dept. Agr., Misc. Pub. 174: 67-70 (vwdestus). 



Biology: Myers, 1925 (1924). Jour. Agr. Res. 29: 289-295. -Hill and Smith, 1928. Jour. Agr. 

 Res. 36: 153-155. -Hill and Smith, 1931. Ent. Soc. Wash., Proc. 33: 182-183. -Gahan, 1934 

 (1933). U. S. Dept. Agr., Misc. Pub. 174: 67-70. —Hill et al., 1939. U. S. Dept. Agr., Tech. 

 Bui. 689: 12-13. -Hill and Pinckney, 1940. U. S. Dept. Agr., Tech. Bui. 715: 9-13. 



Morphology: Hill and Smith, 1931. Ent. Soc. Wash., Proc. 33: 183-185 (immature stages). 



