REPORT OF THE STATE ENTOMOLOGIST I918 233 



Odontodiplosis americana Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 404 



This pale yellowish male was taken July 3, 1906 on alder, A 1 n u s 

 V i r i d u s , and the 24th on low blackberry, Rubus villosus, 

 at Albany, N. Y. The female, provisionally associated with this 

 species, was taken on the same date. 



Male. Length i mm. Antennae one-fourth longer than the body, 

 thickly haired, pale straw; fourteen segments, the fifth with stems 

 each three times their diameter; terminal segment, distal node 

 stout, subcylindric, with a length about four times its diameter and 

 at the distal fourth tapering to a narrowly rounded apex. Palpi; 

 the first segment short, stout, irregularly ovoid, the second rather 

 stout, with a length over three times its diameter, the third a little 

 longer and more slender than the second; face yellowish, eyes dark 

 reddish. Mesonotum fuscous yellowish. Scutelltim pale yellowish, 

 postscutellum dark brown. Abdomen pale yellowish, dark brown 

 basally and apically. Wings hyaline, costa pale straw; halteres 

 yellowish transparent. Legs a nearly uniform pale straw; tarsi 

 slightly lighter, the terminal segments darker; claws long, slender, 

 strongly curved, the pul villi nearly as long as the claws. Genitalia; 

 basal clasp segment long, slender, a rudimentary lobe at the basal 

 third; terminal clasp segment long, slender; dorsal plate short, broad, 

 broadly and triangularly emarginate, the lobes diverging, broadly 

 rounded; ventral plate short, broad, broadly rounded. Harpes 

 convolute, rather short, approximate, the margin dentate; style long, 

 slender, narrowly rounded. Type Cecid. 451. 



Female. Length .75 mm. Antennae about as long as the body, 

 sparsely haired, light brown; probably fourteen segments, the fifth 

 with a stem fully as long as the cylindric basal enlargement, which 

 latter has a length over twice its diameter, and is slightly constricted 

 near the basal third; terminal segments cylindric, with a length four 

 times their diameter, obtusely rounded apically; mouth parts slightly 

 produced. Palpi; first segment irregularly subquadrate, the second 

 narrowly oval, with a length three times its diameter, the third 

 one-half ■ longer than the second, more slender. Mesonotum dark 

 brown, submedian lines sparsely setose; scutellum pale orange; 

 postscutellimi fuscous orange. Abdomen yellowish orange with 

 indistinct fuscous markings laterally. Wing membrane rather 

 thickly clothed with narrow, hairlike scales; costa dark brown; 

 halteres pale yellowish basally, whitish transparent apically. Legs 

 fuscous yellowish. Ovipositor short, the lobes with a length six 

 times the width. 



Odontodiplosis montana Felt 



1908 Felt, E. P. N. Y. State Mus. Bui, 124, p. 404 



This fuscous yellowish male was taken July 27, 1906 on hemlock, 

 Tsuga canadensis, at Newport, N. Y. 



