450 PROCEEDINGS OF THE NATIONAL MUSEUM ^l. us 



Group A. Petiolata 

 1. Eurytotna phloeotribi Ashmead 



Map 1 



Eurytoma phloeotribi Ashmead, 1894, p. 326. — Peck, 1951, p. 577. 



Types: U.S. National Museum, no. 25505; type series consists of 

 6 females, 1 of which I have labelled and designated as lectotype. 



Type locahty: Morgantown, W. Va., bred Mar. 23, 1893, by A. D. 

 Hopkins, Ace. no. 6117a, from Mulberry. 



Distribution: United States: West Virginia, Virginia, Washington, 

 D.C., North Carolina, New York, Oregon, California, Idaho. Canada: 

 Quebec. 



Hosts: Phloeotribus frontalis (Oliver) in Mulberry (Ashmead, 1894). 

 Phloeotribus dentifrons (Blackman) (Peck, 1951, in Musebeck et al., 

 U.S. Dept. Agric. Monogr., no. 2). Pityophthorus liquidamharus 

 Blackman (Peck, 1951, in Musebeck et al., U.S. Dept. Agric. Monogr. 

 no. 2). Pseudopityophthorus minutissimus (Zimmermann) (Peck, 

 1951, in Musebeck et al., U.S. Dept. Agric. Monogr., no. 2). Pseudo- 

 pityophthorus pruinosus (Eichhoff) (Peck, 1951, in Musebeck et al., 

 U.S. Dept. Agric. Monogr., no. 2). Scolytus m,uticus Say (Peck, 1951, 

 in Musebeck et al., U.S. Dept. Agric. Monogr., no. 2). Stephanoderes 

 dissimilis (Zimmermann) (Peck, 1951, in Musebeck et al., U.S. Dept. 

 Agric. Monogr., no. 2). Scolytus abietis Blackman from Abies grandis 

 (specimens in U.S. National Museum collection). 



Additional locality records and specimens : U.S. National Museum 

 collection (22 females and 11 males). 



This species seems to be limited in its parasitism to the Engraver 

 beetles of the family Scolytidae. 



Eurytoma j^Moeotribi with its abdomen extremely compressed 

 laterally, round elongate petiole, and coiled female genitalia might 

 well be separated from Eurytoma as a distinct genus. Since only the 

 one species is known, and there are only a few specimens, it seems 

 best to leave it in Eurytoma until more study material is available. 



2. Eurytoma orchidearum (Westwood) 



Tsosoma orchidearum Westwood, 1809, p. 1230; 1882, pp. 307-328.— Moore, 1916, 



pp. 3-12.— Felt, 1916, p. 336. 

 Eurytoma orchidearum Gahan, 1922, p. 41. — Peck, 1951, p. 577. 

 Eurytoma phoenix Girault, 1917, p. 11; 1920, p. 204.— Bugbee, 1956, p. 504. 



Types: Hope Department of Entomology, University Museum, 

 Oxford, England. 



Type locality: Brazil. 

 Distribution: Cosmopolitan. 

 Host: Orchids (Cattleya species). 



