382 Hymenoptera in America North of Mexico 



during the period in which hercyniae has been resurrected from snonymy with Gilpinia 



polytoma (Htg.) (i.e. since 1939). 

 Exentenis adspersus Hartig, 1838. Jahresber. Fortschr. Forstwiss. Forstl. Naturk. 1: 271. 



6, 9. 

 Exentenis lepidus Holmgren, 1857 (1855). Svenska Vetensk.-Akad. Handl. (n. f.) 1: 231. 6. 

 Exeyiterua laricinnn Thomson, 1888. Opusc. Ent. 12: 1254. 9. 

 Exenterus oleaceus Uchida, 1931. Insecta Matsumurana 5: 146. 9. 



Taxonomy: Beirne, 1941. Soc. Brit. Ent., Trans. 7: 180-181 (final-instar larva). — Iwata, 1958; 

 1960. Acta Hym. 1: 69; 163 (egg and ovary). 



Biology: Morris, Cameron, and Jepson, 1937. Bui. Ent. Res. 28: 375-376. 

 affinis Rohwer. Que., Maine, Ont. Host: Gilpinia hercyniae (Htg.), Neodiprion abietis (Harris). 

 Exentenis affinis Rohwer, 1920. U. S. Natl. Mus., Proc. 57: 225. 9. 



Taxonomy: Finlayson, 1960. Canad. Ent. 92: 928 (final-instar larva). 

 amictorius (Panzer). N. S. s. to n. W. Va., w. to N. Dak.; Europe. Introduced. Host: Gilpinia 

 hercyniae (Htg.), Diprion siinitis (Htg.), Neodiprion lecontei (Fitch), A^. nannlus 

 nanulus Schedl, N. sertifer (Geoff.), A^. sivainei (Midd.). 

 Ichneumon marginatorius Fabricius, 1793. Ent. System., v. 2, p. 145. (female). Preocc. by 



Rossi, 1790. 

 Ichneumon amictoriHS Panzer, 1801. Faunae Ins. German., fasc. 80, pi. 14. 9. 

 Ichneumon sulcatorius Thunberg, 1822; 1824. Acad. Imp. des Sci. St. Petersburg, Mem. 8: 

 279; 9; 359. 6,9. 



Taxonomy: Finlayson, 1960. Canad. Ent. 92: 28-30 (final-instar larva). 



Biology: Scheidter, 1934. Ztschr. f. Pflanzenkrank. 44: 369, 500-502. —Wilkes, 1924. Ent. Soc. 

 Ontario, Ann. Rpt. for 1941, p. 41-44. — McLeod, 1972. Canad. Ent. 104: 1313-1330. 

 canadensis Provancher. Que. s. to Fla., w. to Wis. and La. Host: Neodiprion abietis (Harris), 



A^. excitans Roh., A'^. lecontei (Fitch), N. pinetum (Nort.), N. swainei Midd., N. 



virginiana Roh. For many years the name canadensis has been erroneously applied to 



nigrifrons Rohwer (which see). 

 Exentenis Canadensis Provancher, 1883. Nat. Canad. 14: 9. S, 9. 

 Exenterus diprion i Rohwer, 1915. U. S. Natl. Mus., Proc. 49: 222. 9. Synonymy according 



to Barron (1975). 

 Exenterus diprionis Cushman, 1940. U. S. Dept. Agr. Misc. Pub. 354: 4. Unjustified emend. 



Taxonomy: Finlayson, 1963. Canad. Ent. 95: 489-490 (final-instar larva, as diprionis). 

 —Barron, 1975. Nat. Canad. 102: 440. 



Biology: Barclay, 1938. Ent. Soc. Ontario, Ann. Rpt. 69: 29-31 (as diprioni). —Griffiths, 1969. 

 Canad. Ent. 101: 673-713. 

 confusus Kerrich. N. B., Que., Ont.; Eurasia. Introduced. Host: Gilpinia hercyniae (Htg.), 

 Neodiprion nanulus nanulus Schedl. This species was misidentified as Exentenis 

 claripennis Thomson in the revision by Cushman (1940). 

 Exentenis confusus Kerrich, 1952. Brit. Mus. (Nat. Hist.) Ent., Bui. 2: 361. i, 9. 



Taxonomy: Finlayson, 1960. Canad. Ent. 92: 926-927 (final-instar larva). 



Biology: Reeks, 1952. Canad. Ent. 84: 79-85 (as claripennis). 

 hullensis Provancher. Que., N. H., Ont, Mich. 



Exentenis Hullensis Provancher, 1886. Addit. Corr. Faune Ent. Canada Hym., p. 104. 6, 

 9. 

 lophyri Viereck. Nebr., Ariz. Host: Zadiprion townsendi (Ckll.). 



Exenterus lophyri Viereck, 1911. U. S. Natl. Mus., Proc. 39: 404. 9. 



Biology: Swenk, 1911. Nebr. Agr. Expt. Sta., Ann. Rpt. 24: 26-28. 

 nigrifrons Rohwer. N. S. to Fla., w. to Minn, and Tex. Host: Gilpinia hercyniae (Htg.), 



Neodiprion abbotii (Leach), A^. abietis (Harris), A^. excitans Roh., N. lecontei (Fitch), N. 

 nanulus nanulus Schedl, N. pratti banksianae Roh., A^. rugifroyis Midd., N. sertifer 

 (Geoff.), A^. swainei Midd., A^. taedae linearis Ross. Preceding the work of Barron (1975) 



