Superfamily TENTHREDINOIDEA 111 



Genus ISCHYROCERAEA Kiaer 



Ischyroceraea Kiaer, 1898. Tromsoe Mus. Aarsh. 19: 68. 



Type-species: Ischyroceraea hyperborea Kiaer. Monotypic. 



The species below is sometimes given in the genus Eniscia Thomson, 1870. However, the only 

 valid type-species designation of Eniscia is Tenthredo consobrina Klug as designated by 

 Rohwer, 1911. Because of this Eniscia is a synonym of Sciapteryx Stephens, 1835, a Palaearctic 

 genus. 



Ta.\onomy: Smith, 1974. Coop. Econ. Ins. Rpt. 24 (35): 707-710 (first N. Amer. record). 

 arctica (Thomson). Alaska (Umiat); Siberia, Scandinavia. 

 Eniscia arctica Thomson, 1870. Opusc. Ent. 2: 300. 

 Ischyroceraea hyperborea Kiaer, 1898. Tromsoe Miis. Aarsh. 19: 68. 



Genus TENTHREDO Linnaeus 



Tenthredo Linnaeus, 1758. Syst. Nat., Ed. 10, v. 1, p. 343. 



Type-species: Tenthredo scrophulariae Linneaus. Desig. by Latreille, 1810. 

 Labidia Provancher, 1886. Addit. Corr. Faune Ent. Canada Hym., p. 21. 



Type-species: Labidia colutnbiana Provancher. Monotypic. 

 Parastatis Kirby, 1881. Ent. Monthly Mag. 18: 107. 



Type-species: Parastatis indica Kirby. Monotypic. 

 Rethrax Cameron, 1899. Manchester Lit. Phil. Soc, Mem. and Proc. 43: 33. 



Type-species: Rethrax carinata Cameron. Monotypic. 

 Fethalia Cameron, 1902. Bombay Nat. Hist. Soc, Trans. 14: 439. 



Type-species: Fethalia nigra Cameron. Monotypic. 

 Clydostomus Konow, 1908. Ztschr. System. Hym. Dipt. 8: 19. 



Type-species: Clydostomus cestatns Konow. Desig. by Rohwer, 1911. 

 Tenthredella Rohwer, 1910. U. S. Natl. Mus., Proc. 39: 117. 



Type-species: Tenthredo afra Linnaeus. Orig. desig. 

 Zamacrophya Rohwer, 1912. U. S. Natl. Mus., Proc. 39: 221. 



Type-species: Zamacrophya nigrilabris Rohwer. Orig. desig. 



Probably the largest sawfly genus, with over 700 described world species. Adults are large 

 and many are brightly colored. They are commonly found on flowers of various plants where 

 they feed on nectar and pollen and may also be factors in pollination. Adults are also predaceous 

 on other arthropods. Hosts and biologies are known for very few species. European authors 

 have devised their own species groups within the genus; however, until the North American 

 forms are studied in relation to the world fauna, the species groups below are retained from 

 previous catalogs. 



Taxonomy: Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 225-226 (key to species of Labidia 

 [originalis group]). — Smulyan, 1923. Boston Soc. Nat. Hist., Proc. 36: 385-465 (New 

 England species). 



Species Group Originalis 



anomocera Rohwer. Alta., Wyo., Colo. w. to B. C, Oreg., Calif. 



Tenthredo (Labidia) anomocenis Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 223. 9. 

 Tenthredo (Labidia) alienatus Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 224. 9. 

 Tenthredo (Labidia) anomus Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 225. 9. 

 devia (Konow). Alaska (Aleutian Islands to Popof Is.); Japan, N. Siberia to N. Europe. 

 Allantus devius Konow, 1900. Ent. Nachr. 26: 124. 9. 

 Allantus heraclei Kincaid, 1900. Wash. Acad. Sci., Proc. 2: 364. 9,8. Preocc. by Rudow, 



1872. 

 Allantiis alaskanus Enslin, 1910. Rev. Russe d'Ent. 10: 371. N. name for heraclei Kincaid. 



Taxonomy: Benson, 1959. Roy. Ent. Soc. London, Proc, Ser. B: Taxonomy 28: 98. 

 maxima (Norton). Alta., Mont., Wyo., Colo., N. Mex. w. to Wash., Oreg., Calif. 



Allantus unicinctus Norton, 1864. Ent. Soc. Phila., Proc. 3: 9. 9, i. Preocc. by Brulle, 



1832. 

 Allantus 7naximus Norton, 1867. Amer. Ent. Soc, Trans. 1: 263. 9. 



