NO. 3533 CHALCID WASPS OF GENUS EURYTOMA — BUGBEE 497 



15 males. All specimens except those collected in 1956 from vial 4 or 

 5, nos. 1, 2, 3, 4, 5, 6, 7; lot 59-153. 



Distribution: Canada: Ontario. 



Host: Phytophagous in the buds of jack pine (Pinus banksiana). 



Remarks: This species is close to E. squamosa in its size relation- 

 ships, short ninth tergum, sculpturing of the abdomen, color of the 

 legs, and phytophagous habit. It differs, however, in the shallow, 

 complete median furrow and the rougher sculpturing of the lateral 

 areas, the more dorsally produced female genitalia, and the different 

 host. 



62. Eurytoma pint Bugbee 



Map 27 



Eurytoma pini Bugbee, 1958b, pp. 197-200. — Watson and Arthur, 1959, pp. 478- 

 484.— MiUer, 1959a, pp. 768, 769. 



Types: Holotype female, allotype, and paratypes in the U.S. 

 National Museum (USNM 66025). Paratypes in the Bugbee col- 

 lection, Meadville, Pa. 



Type locality: Washington, D.C., A. D. Hopkins collection. 



Host: Rhyacionia rigidiana (Fernald), R. buoliana (Schiff ermiiller) , 

 and R. frustrana (Comstock) on Pinus sylvestris and P. banksiana. 

 Additional hosts from labels on determined specimens in the U.S. 

 National Museum and Bugbee collections: Acrobasis rubrifasciella 

 (Peck). Eucosoma scudderiana Clemens. Pectinophora gossypiella 

 (Saunders). Thyridopteryx ephemeraeformis (Haworth). Epiblema 

 strenuana (Walker). Cremasius cookii Weed. 



Distribution: Throughout the pine-growing regions of Canada 

 and the United States from southern Quebec, Ontario, Manitoba, 

 Saskatchewan, and British Columbia south to Maryland, Virginia, 

 Missouri, and Nebraska. 



Remarks: For more complete details of host relationships, see 

 Bugbee (1958). This important parasite has been confused for many 

 years with Eurytoma tylodermatis Ashmead. It differs from E. 

 tylodermatis, however, in averaging larger (4.5 mm.); presence of more 

 extensive sculpturing on the sixth abdominal tergum; longer ninth 

 tergum (averaging .28 mm.) ; narrow horizontal portion of the dorsal 

 valves and the lack of a weU-defined, complete median furrow on the 

 propodeum. 



63. Eurytoma baccae, new species 



Figure 26; Map 28 



Female: Black. Averages in length 3.2 mm. (3.0-3.7). Abdomen 

 oval; lateral compression medium; abdomen averages in length 1.8 

 mm. (1.6-2.5); sixth segment averages .57 mm. (.50-.62); three- 

 quarters of its lateral surface covered with fine, shallow punctations 



219-931—67 5 



