ICHNEUMON-FLIES — GELINAE : MESOSTENINI 423 



lata except that white markings tend to be a little larger, white area 

 on lower part of mesopleurum is longer and more oblique, the meta- 

 pleurmn has a white spot, hmd basitarsus is entirely white or with a 

 small subbasal mfuscation, and fuscous on apex of hind femur occupies 

 only about 0.18 of its length. 



Specimens: 29, reared from tortricid on Gleditsia, Decatur, 111., 

 Apr. 6, 1911, from Barnes collection (Washington). 9, Sioux City, 

 Iowa, May 1937, C. N. AinsKe (Washington). 9, Brooksville, Maine, 

 F. A. Eddy (Cambridge). 9, Grosse He, Wayne Co , Mich., Aug. 10, 

 1937, George Steyskal (Townes). 9, Keweenaw Co., Mich., Aug. 9, 

 1953, R. R. Dreisbach (Dreisbach). 9, iVIissaukee Co., Mich., July 

 20, 1957, R. R. Dreisbach (Driesbach). 9, Olmsted Co., Minn., 

 C. N. Ainslie (Washington). 9, St. Paul, Minn., Sept. 21, 1938, P. 

 Schroder (St. Paul). 9, St. Louis, Mo., Aug. 16, 1938 (Washington), 

 cf, 29, Mount Washington, N. H., A. T. Slosson (New York). 9, 

 Moorestown, N.J., July 9, 1930 (Ann Arbor). 9, West Farms, New 

 York, N.Y., J. Angus (New York). cT, Cleveland, Ohio, July 7, 

 1935, F. D. De Gant (Columbus). 49, Montgomery Co., Ohio, July 

 16 and Aug. 21 and 28, 1943, F. D. De Gant (Columbus). 39, no 

 data (Columbus and St. Paul). 



This species occurs in northeastern United States. 



9. Listrognatlius (Listrognathus) rufitibialis Cushman 



Figures 329,1; 336,c 



Listrognathus albomaculatus var. rufitibialis Cushman, 1929, Proc. U.S. Nat. Mus., 

 vol. 74, art. 16, p. 18; d", 9- Type: ?, Plummers Is., Md. (Washington). 



Front wing 6.2 to 8.9 mm. long. Structurally similar to L. alho- 

 maculata except that propodeal crests are a little more prominent, 

 apical carina of propodeum weaker between the crests (more often 

 lacking), postpetiole a little wider and with more uniformly dense 

 punctures, punctures on second tergite a little denser, and paired 

 notches at nodus of ovipositor a little weaker. 



Head, body, and hind coxa black, marked with white as in figure 

 336, c, the face of male entirely white. Front of male scape, upper 

 side of the median 11 ± segments of male flagellmn, band on median 

 6± segments of female fiageUum (incomplete below), and palpi white; 

 antenna blacldsh except where described as white, the under side of 

 male flagellum light brown, paler medially; front and middle coxae 

 brownish fulvous and white, mostly wliite; front and middle fii'st 

 trochanters fulvous, white below; front and middle legs bej^ond first 

 trochanter fulvous, the male tibiae and tarsi pale fulvous or whitish, 

 and the fifth segments of female tarsi brown; hind trochanter, femur, 

 and tibia fulvous, the apical 0.08 ± of the femur and basal 0.12 of the 

 tibia fuscous; apical 0.08 ± of hind tibia sometimes weakly infuscate; 



