ICHNEUMONIDAE 941 



O. canadensis Prov. Rock City, Je (Cush-CU) ; Ithaca, May, Je (Cush-CU) ; 

 Freeville, Jl (Cush-CU) ; McLean, Aug 31, 1925, SRobinson (Bdy-CU) ; L. 

 George, Jl, Fisher (Cush-US) ; Black Mt., L. George, Sep 4, Leon (Bdy- 

 CU). Recorded by Rohwer as parasitic on Dicerca divaricata (Say), D. sp. 

 (Buprestidae), Leptura sp. (Cerambycidae), and Serropalpus sp. (Melan- 

 dryidae). 



O. dichrous Roh. McLean Bogs, May, Sep 14, Sib (Cush, Bdy-CU). 



O. mellipes (Say). Rock City, Ringwood (Bdy-CU) ; Ithaca, Jl-Sep (Cush-CU) ; 

 McLean, Aug 8, Sih (Bdy-CU); Tioga Co (Bdy-CU); SI (Viereck) ; LI: 

 Flatbush, Jl, Zab (Roh-US). Recorded as a parasite of Parandra brunnea 

 ( Fab. ) ( Cerambycidae ) . 



O. strangaliae Roh. Oswego, Jl (Roh-US). The type was reared from Ophistomis 

 hiteicornis (Fab.) (Cerambycidae). 



0. vicinus Cress. Ithaca, Je (Bdy-CU) ; McLean, May 31-Sep 21 (Cush, Bdy-CU). 



Tribe ICHNEUMONINI 



(Pimplini auctt.) 



Ichneumon Linnaeus 



(Ephialtes auctt.) 



(Subgenus Ichneumon Linnaeus) 



(The species of this subgenus are usually, if not always, parasitic on wood-boring 

 or twig-boring Coleoptera.) 



1, irritator Fab. Rock City, Je (Cush-CU) ; Ithaca, Maj^-Aug (Bdy, Cush-CU) ; 



Coy Glen, May (Cush-CU) ; McLean, May, Je 23, Sib (Cush, Bdy-CU) ; 

 Albany, May (NYS) ; LI: W. Bergen, Jiielich (Cress) ; Wyandanch, May, 

 (Cush-Schott). Specimens in the U.S. Nat. Mus. were reared from the longi- 

 corn Obrium rufidiim Gahan. Also recorded as a parasite of Leiopus 

 variegatus (Hald.) (Cerambycidae), and Cryptorhynchus lapathi (Lee.) 

 (Curculionidae). 



I. macer (Cress.). New Russia, Aug, Bdy (Cush-CU). 



I. occidentalis (Cress.). Cranberry L., Jl, Htly (Cush-NYS Col. For.) ; Ithaca, Jl 

 (Cush-US) ; Johnstown, May (NYS) ; Albany, Jl (NYS). 



I. pusio (Walsh). New Russia, Aug, Bdy (Cush-CU). A specimen in the U.S. 

 Nat. Mus. is said to have been reared as a parasite of Xiphydria in maple, 

 which, however, was infested also by a coleopterous larva. 



(Subgenus CalliephiALTES Ashmead) 



(The species of this subgenus are parasitic on lepidopterous and coleopterous 

 larvae living in twigs, weed stems, etc.) 



I. comstockii (Cress.), Ithaca, Comst (holotype-US) from Retinia comstockiana, 

 Aug (Cush-CU) from Pinipestis siinmermani; Port Chester, May (Cush-US). 

 Specimens in the U.S. Nat. Mus. were reared as parasites of Rhyacionia taxi- 

 foliella Busck, R. buoliana, and R. frustrana Comst. (Tortricidae). 



I. grapholithae (Cress.). Ithaca, Je (Cush-CU). Recorded as a parasite of 

 Laspeyresia caryana Fitch (Tortricidae), Acrobasis hebescella Hulst (Pyral- 

 idae), and the sawfly Euura salicis'Uodus Walsh. 



