486 PROCEEDINGS OF THE NATIONAL MUSEUM vol. iis 



Distribution: Canada: Ontario, New Brunswick. 



Host: Macrocentrus ancylivorous Rohwer, Apanteles solitarius 

 (Ratzeburg), Cremastus minor Cushman. 



Additional localities: Specimens in the collection of the Depart- 

 ment of Agriculture, Ottawa, Canada. Vineland, Ontario, host 

 Macrocentrus ancylivorus, Cremastus minor. McAdam, N.B., from 

 Apanteles solitarius. Moncton, Apanteles cacoons. Vineland, Ontario, 

 host Lasperyresia (= Grapholitha) molesta (Busck). 



Remarks : The status of Eurytoma appendigaster in the United States 

 is uncertain. It is listed by Peck (1951) as occurring in New England, 

 New Jersey, Pennsylvania, and Wisconsin, but I have been unable 

 to verify these localities. I have not recognized the species in my 

 own extensive collection of eurytomids and the only material that 

 I feel sure of in the U.S. National Museum collection is from Europe. 

 The only specimens that seem to fit E. appendigaster are in the col- 

 lection of the Department of Agriculture, Ottawa, Canada. 



M. F. Claridge (1959) states that there is no Swederus material of 

 this species existent, but there is material of Boheman, who probably 

 saw the original material. He sent me one of Boheman's specimens 

 and a specimen that Claridge himself had determined as E. appendi- 

 gaster. I have also seen some specimens in the U.S. National Museum 

 collection that A. B. Gahan compared with Boheman's specimens 

 and determined as E. appendigaster. There are several characteristics 

 that stand out in the material mentioned above. The male antenna 

 are distinctly seven segmented with segment six separated from seven 

 by a short petiole. All of the males of North American species of 

 Eurytoma that I have seen have segments six and seven either 

 closely fused or separated by a shallow annulation, not by a distinct 

 petiole. The female has the sculpturing reduced on the long sixth 

 abdominal segment, so that it is limited to the lower anterior third 

 of the lateral surface. The umbilicate punctures on the mesonotum 

 are large, close together, and the ridges between them are not sculp- 

 tured but are smooth and shiny. The first segment of the antenna 

 is longer than wide, at least twice as long as wide. The redescription 

 by Claridge (loc. cit.) does not mention some of the characteristics 

 listed above. He does, however, pick a neotype female from the 

 Boheman collection. 



The species is included in this revision because of the specunens in 

 the collection of the Department of Agriculture, Ottawa, Canada. 



51. Eurytoma seminis Bugbee 



Map 24 

 Eurytoma seminis Bugboe, 1941, pp. 98-102. — Peck, 1951, p. 578. 

 Types: 15 females and 8 males; holotype female, male, and female 



