125 
Seven females. New York, Illinois. Missouri, and Colorado. (Coll. 
U. S. Nat. Mus.) 
4. Gymnonychus resinicolor new species. 
Female. — Length 5 mm. 5 moderately robust ; clypeus squarely trun- 
cate; vertex smooth, shining; antenna! fovea and ocellar basin obso- 
lete; antenme slender, scarcely tapering, third and fourth joints sub- 
equal; sheath not produced, rounded at tip; cerci very robust, short, 
acuminate; claws simple; intercostal vein nearly interstitial with basal; 
stigma broad, rounded on lower margin. Color dark resinous, inclined 
to reddish; spot about ocelli, center of anterior lobe of mesonotum, 
most of metanotum, and the center of dorsum of abdomen brownish 
black; antenna 1 brownish above; wings clear; veins yellowish brown; 
stigma lighter, almost hyaline. 
One female. Fort Wrangel, Alaska. Mr. II. F. Wickham, collector. 
(Coll. U. S. Nat. Mus.) 
XVIII. Genus DINEURA Dahlbom. 
Dineura Dahl.. Conspect. Tenth. Scand., p. 13, 1835. 
SPECIES. 
americana Provancker. Nat. Can., xni, p. 292, 9,1882. (Canada.) 
lateralis Norton. Trans. Ani. Ent. Soc, 1, p. 240, 9,1867. (Maine.) 
linita Norton. Trans. Am. Ent. Soe., 1, p. 240, 9,1867. (Maine.) 
litura Klug. Mag. Ges. Nat. Er. Berlin, vin, p. 83, 9,1814; Norton. Trans. Am. 
Ent. Soc, 1, p. 240, 1867. (Georgia.) 
luteipes Cresson. Trans. Am. Ent. Soc., vin, p. 11, $ , 1880. (Canada and Maine.) 
pallida Ashmead. Bull. Col. Biol. Assn., 1, p. 15, 9,1890. (Colorado.) 
The species linita and lateralis are very closely allied, it not identical, 
and luteipes may prove to be merely the male of one of them. 
XIX. Genus HEMICHROA Stephens. 
Hemichroa Steph. 111. Brit. Ent., Mandib., vn, p. 55, 1838. 
SPECIES. 
albidovariata Norton. Trans. Am. Ent. Soc., iv, p. 81, 9, 1872. (Texas and 
Elorida.) 
fraternalis Norton. Trans. Am. Ent. Soc, IV, p. 81, J, 1872. (Texas.) 
nigricans Cameron. Trans. Ent. Soc. Loud., p. 482, 1881. (Mexico.) 
The second species, fraternalis, will very probably prove to be the 
male of the first, as indicated both by resemblance and habitat. 
