ICHNEUMON-FLIES, PART 2\ EPHIALTINAE 



427 



wood, Dickinson Co., Mich.; and August 21 and 26 at Bemus Point, 

 N. Y. 



Two of the above females were reared from Tremex columba in Acer 

 rubrum, at Bar Harbor, Maine, by A. E. Brower. 



This subspecies occurs in the Canadian zone and in some cooler 

 parts of the Transition zone. 



Figures 189, 190. — Localities: 189 (left), Megarhyssa at rata lineata; 190 (right), 



M. a. atrata. 



3b. Megarhyssa atrala atrala (Fabricius) 



Figure 318, e 



Ichneumon atratus Fabricius, 1781, Species insectorum, vol. 1, p. 436; 9 • Type: 

 9 , North America (lost). 



Ichneumon tenebrator Thunberg, 1822, Mem. Acad. Imp. Sci. St. Petersbourg, 

 vol. 8, p. 266. New name. 



Rhyssa laevigata Brull6, 1846, in Lepeletier: Histoire naturelle des insectes, 

 hymenopteres, vol. 4, p. 78; o*. Lectotype (hereby designated): cf, labeled 

 lectotype by Townes, no data on specimen (Paris). 



Biology: Harris, 1842, . . . Insects . . . injurious to vegetation, p. 391.— 

 Walsh, 1867, Pract. Ent., vol. 2, p. 118.— Walsh and Riley, 1868, Amer. Ent., 

 vol. 1, p. 77. — Harrington, 1882, Canadian Ent., vol. 14, p. 82.— Lintner, 1883, 

 Cultivator and Country Gentleman, vol. 48, p. 561. — Harrington, 1883, Ann. 

 Rep. Ent. Soc. Ontario, no. 13, pp. 23-24; 1887, Canadian Ent., vol. 19, pp. 

 206-209; 1888, Ann. Rep. Ent. Soc. Ontario, no. 18, p. 25.— Lintner, 1897, 

 Cultivator and Country Gentleman,vol. 62, p. 506.— Fyles, 1916, Ann.Rep. Ent. 

 Soc. Ontario, no. 46, pp. 54, 57. — Macnamara, 1916, Ann. Rep. Ent. Soc. Ontario, 

 no. 46, p. 59. — Champlain, 1921, Ent. News, vol. 32, p. 241. — Blackman and 

 Stage, 1924, Techn. Publ. New York State Coll. Forestry, Syracuse Univ., 

 no. 17, p. 178.— Klugh, 1932, Amer. Photography, vol. 26, p. 158.— Kaston, 

 1937, Bull. Connecticut Agr. Exp. Sta., no. 396, p. 359.— Proctor, 1938, 

 Biological survey of the Mount Desert region, vol. 6, p. 406. — Fattig, 1949, 

 Ent. News, vol. 40, pp. 69-71. 



Morphology: Snodgrass, 1933, Smithsonian Misc. Coll. vol., 89, no. 8, pp. 

 112-114. 



