40 Hymenoptera in America North of Mexico 



Biology: Dyar, 1897. N. Y. Ent. Soc, Jour. 5: 20. — Krombein, 1960. Ent. News 71: 30 (in 

 sumach pith). 

 multicinctus Hall. Maine, Md., Ont., Ohio. Host: Athyrium thelypteroides. 



Hemitaxonus viidticinchis Hall, 1917. Ent. Soc. Wash., Proc. 19: 28. Egg, larva. 



Biology: Hall, 1917. Ent. Soc. Wash., Proc. 19: 28. 

 primarius Smith. B. C, Oreg., Calif. 



Hemitaxonus primarius Smith, 1966. Ent. Soc. Wash., Proc. 68: 119. 9, 6 . 



Genus STRONGYLOGASTER Dahlbom 



Tenthredo subg. Strongylogaster Dahlbom, 1835. Conspectus Tenthred., Siricid., Oryssin. 

 Scand., p. 13. 



Type-species: Tenthredo cingulata Fabricius. Desig. by MacGillivray, 1908. 

 Tkrinax Konow, 1885. Wien. Ent. Ztg. 4: 19. 



Type-species: Thrinax contigua Konow. Desig. by MacGillivray, 1908. 

 Pseudotaxonus Costa, 1894. Prosp. Imen. Ital., p. 157. 



Type-species: Tenthredo filicis Klug. Monotypic. 

 Poiystichophagiis Ashmead, 1898. Canad. Ent. 30: 310. 



Type-species: Tenthredo filicis Klug. Orig. desig. 

 Prototaxonus Rohwer, 1910. Canad. Ent. 42: 49. 



Type-species: Prototaxonus typicus Rohwer. Monotypic. 



Larvae of this genus feed on the underside of fronds of ferns. Mature larvae may bore into 

 soft wood, bark of trees, or other substances for overwintering and pupation. Adults are found 

 around their host plants in the spring months. The genus is holarctic with about 25 world spe- 

 cies. Some authors consider Thrinax and Pseudotaxonus as distinct genera. 



distans Norton. Colo., Utah w. to B. C, Wash., Oreg., Calif. Host: Pteridium aquilinum,. 

 Strongylogaster distayis Norton, 1868. Amer. Ent. Soc, Trans. 2: 220. 9. 

 Strongylogaster pacificus MacGillivray, 1893. Canad. Ent. 25: 241. 9, d. 



Biology: Beer, 1955. Kans. Univ. Sci. Bui. 37: 223-249. 

 impressata Provancher. N. S., N. B., Que. to N. C. w. to Minn., Colo., N. Mex. Host: Pteridium 

 aquilinumin- 

 Strongylogaster impressata Provancher, 1878. Nat. Canad. 10: 170. 9. 

 Strongylogaster luctuosus Provancher, 1885. Addit. Corr. Faune Ent. Canada Hym., p. 12. 



9. 

 Taxonus rufipes Harrington, 1889. Canad. Ent. 21: 97. S. 

 Thrinax pullatus MacGillivray, 1921. Psyche 28: 34. 6. 

 macula (Klug). Ont., B. C; Europe to Japan. Host: Athyrium and Pteridium. These hosts 

 were recorded in Europe. 

 Tenthredo (Allantus) ynacula Klug, 1814. Mag. Gesell. Naturf. Freunde Berlin 8: 217. 9. 

 Thrinax intermedia Konow, 1885. Wien. Ent. Ztg. 4: 22. 9. 

 Thrinax contigua Konow, 1885. Wien. Ent. Ztg. 4: 22. 9, S. 

 multicincta Norton. N. S., N. B., Que. to Fla. w. to Minn., 111. Host: Pteridium aquilinum. 

 Strongylogaster ynulticinctus Norton, 1862. Ent. Soc. Phila., Proc. 1: 143. 9. 

 Strongylogaster annulosus Norton, 1868. Amer. Ent. Soc, Trans. 2: 211. 9. 

 Strongylogaster longulus Norton, 1868. Amer. Ent. Soc, Trans. 2: 216. i. 

 Strongylogaster alboannulatus Rohwer, 1912. U. S. Natl. Mus., Proc 43: 237. 9. 

 Strongylogaster annulosus var. cingulescens Ross, 1932. Canad. Ent. 64: 250. 9,6. 



Biology: Hogh, 1966. Kans. Ent. Soc, Jour. 39: 347-354. 

 polita Cresson. Conn., Ont, N. Y. 



Strongylogaster politus Cresson, 1880. Amer. Ent. Soc, Trans. 8: 20. 9. 



Strongylogaster politus Provancher, 1882. Nat. Canad. 13: 296. 9. Preocc. 

 remota Rohwer. Que., Pa. 



Strongylogaster remotus Rohwer, 1912. U. S. Natl. Mus., Proc. 43: 237. 9. 



rufigastra (Kincaid). Alaska, B. C. 



Paraselandria rufigastra Kincaid, 1900. Wash. Acad. Sci., Proc. 2: 346. 9. 



