150 NEW YORK STATE MUSEUM 



narrowly incised, the lobes narrowly rounded; ventral plate narrow, 

 long, narrowly rounded; style long, slender. Type Cecid. 763. 



PARADIPLOSIS Felt 



1908 Felt, E. P. N. Y. State Mus. Bui. 124, p. 410 



1910 Rubsaamen, E. H. Zeitsch. Wissenschaft. Insektenbiol. , 15:286 



191 1 Felt, E. P, N. Y. Ent. Soc. Jour., 19:60 

 1913 Kieffer, J. J. Gen. Insect., fasc. 152, p. 223 



The genus is separated from Itonida principally by the peculiar 

 structures of the male genitalia. The basal clasp segment is short, 

 stout and broad, while the terminal clasp segment is short, stout and 

 apically with a broad, chitinized serrate margin. The dorsal and 

 ventral plates are short, broad, each rather deeply and narrowly 

 emarginate ; style short, stout. The third vein unites with the margin 

 at the apex of the wing. The palpi are quadriarticulate and the 

 claws simple. Type Cecidomyia obesa Felt, C 167. 



Paradiplosis obesa Felt 



1907 Felt, E. P. N. Y. State Mus. Bui. no, p. 134-35; separate, p. 38 

 (Cecidomyia) 



1908 — N. Y. State Mus. Bui. 124, p. 410 



This dark carmine male was taken June 7, 1906 on hemlock, 

 Tsuga canadensis, at Lake Clear, N. Y. It is most easily 

 recognized by the peculiar genitalic structures. 



Male. Length 1.5 mm. Antennae as long as the body, rather 

 thickly clothed with fine hairs, bright carmine; fourteen segments, 

 the fifth with stems hardly as long and one-half greater than their 

 diameters, respectively; distal enlargement subcylindric, with a 

 length one- half greater than its diameter; circiuniila distinct, the 

 loops of the distal filum extending to the apex of the segment; ter- 

 minal segment, distal node produced, constricted at the basal third, 

 the appendage with a length twice the average diameter of the 

 stem. Palpi; the first segment short, subquadrate, the second twice 

 the length of the preceding, subrectangular, the third as long as the 

 second, fusiform, the fotirth one-third longer, more slender, all 

 sparsely clothed with coarse setae; face pale yellowish, eyes large, 

 black. Mesonotum and scutelltun dark carmine, postscutellum 

 fuscous. Abdomen dark carmine. Wings hyaline, costa pale broMm, 

 subcosta uniting with the margin at the basal third, the third vein 

 curving slightly and joining the margin just beyond the apex, the 

 fifth vein, almost obsolete distally, uniting with the posterior margin 

 at the distal third, its branch at the basal third. Halteres whitish 

 transparent. Legs nearly uniform pale straw, tarsi slightly darker; 

 claws rather stout, slightly curved, simple. Genitalia (pi. 20, fig. 8); 

 basal clasp segment very stout, broad, obliquely truncate; tenTiinal 

 clasp segment very stout, broadly rounded, the apex with a series of 



