1957] 
W erner — N ear die Tomoderus 
57 
Co., Apr. 9, 1933; Volo, Oct. 7, 1933, Asterlund, moss in 
bog. Indiana: Evansville, June 27, 1943, H. S. Dybas; 
Starke Co., Aug. 14, 1920, W. S. Blatchley. Louisiana: 
Tallulah, P. A. Glick. Maryland: Baltimore, Mar. 14. 
Missouri : St. Louis. New Jersey : Arlington, E. L. Dicker- 
son; Emerson, Feb. 3, 1918, Quirsfeld. New York: Staten 
Island, Feb. Ohio: Cincinnati; Holgate; Holmes Co., Feb., 
Mar., Everly; Holmesville, Mar. 24, 1928; Marietta, Nov. 
10; Mendon, Mercer Co., Aug.; Salineville, Feb. 4, 1891. 
Pennsylvania: Angora, June 15, G. M. Greene; Easton, 
May 4, 1937, J. W. Green. South Carolina: Sumter, Oct. 
20, 1926. Texas: Lee Co., July, 1912, J. C. Warren. 
Virginia: Falls Church, Sept. 28, Nov. 18, N. Banks. 
Wisconsin: Bayfield Co., Liebeck Coll. 
Tomoderus inhabilis sp. n. 
Plate 5, Figs. 3, 7 
This species is externally almost indistinguishable from 
Tomoderus interruptus and T. constrictus as interpreted 
in the present paper. The antennae tend to be slightly 
thicker toward the apex than in either of these two 
species. The following measurements, in 0.01 mm., length 
over maximum width, from basal to apical segments, show 
a comparison of the antennae of a male of each of the 
four species. It has not proven practical to segregate 
the species on this basis. Interruptus: 15/9, 10/6, 11/6, 
10/6, 11/7, 10/8, 11/10, 11/10, 11/12, 10/12, 14/12. Con- 
strictus: 13/9, 8/6, 9/6, 9/6, 10/7, 10/7, 11/8, 11/9, 10/10, 
10/10, 13/10. Inhabilis: 15/8, 11/6, 11/6, 10/7, 12/9, 
11/10, 11/11, 11/11, 11/12, 10/13, 16/12. Impressulus: 
15/9, 10/7, 11/7, 10/8, 11/9, 10/9, 9/11, 9/12, 9/13, 9/13, 
13/12. Segments VII to X are at least as broad as long 
in these specimens of impressulus and inhabilis, while 
only segments IX and X are as broad as long in the other 
two species. Even though these differences are not con- 
stant enough or striking enough for identification of species, 
they show up fairly well in a series after the specimens 
have been identified on the basis of the male genitalia. 
Except in the case of impressulus, where the thickness 
of the antennae can be associated with other external 
