REPORT OF THE STATE ENTOMOLOGIST I918 163 



191 1 Felt, E. P. N. Y. Ent. Soc. Jour., 19:61 

 1913 Kieflfer, J. J. Gen. Insect., fasc. 152, p. 228 



This genus was proposed by Rubsaamen with D i p 1 o s i s 

 galliperda F. Lw. as type because it was found that the type 

 of Clinodiplosis Kieff., C. cilicrus Kieff. has the anterior 

 claws toothed. The species previously noticed by the writer as 

 Clinodiplosis fall in this genus. 



Here belong a number of small, yellowish species which may be 

 recognized by the simple claws, the quadriarticulate palpi, the lack 

 of a conspicuous lobe or spine on the basal clasp segment and by 

 the long, linear, usually narrowly rounded ventral plate. The simple 

 basal node of the flagellate antennal segments of the male serves to 

 separate members of this genus from Xenodiplosis Felt. The known 

 females of American species have moderately short-stemmed, 

 cylindric flagellate antennal segments and a usually short ovipositor 

 with long, slender lobes. 



Several American species have been reared from leaf galls on 

 spiraea ; one from the roots of a plant and another, P . c a r y a e 

 Felt, is probably an inquiline in various Caryomyia galls on hickory. 



Key to Species 



o Ventral plate long, slender, tapering slightly and narrowly rounded apically 



b Antennal segments with only two distinct enlargements, not trinodose 



c Abdomen dark brown, length .75 mm. ..rubrascuta Felt, C. 93 



cc Abdomen yellowish brown, length i mm; reared from leaves of scrub 



oak f 1 o r i d a Felt, C. 978 



ccc Abdomen yellowish with deep orange extremities, length i mm; 



reared from coiled leaf galls on spiraea 



spirae Felt, C. ai 838 

 bb Antennal segments more or less distinctly trinodose 



c Fifth antennal segment having the basal portion of the stem with a 

 length twice its diameter 



d Abdomen pale orange, length 1.5 mm . . . a c e r n e a Felt, C. 267 

 cc Fifth antennal segment having the basal portion of the stem with a 

 length one-half greater than its diameter 



d Abdomen yellowish, the segments banded posteriorly and 

 partially near the middle with brown 



e Length 2.5 mm, fifth antennal segment stems with a length 

 one and one-half and three times the diameters, respec- 

 tively, distal node strongly constricted; reared from glo- 

 bose gall on hickory caryae Felt, C. 331, 1117 



ee Length 1.5 mm, fifth antennal segment stems with a length 

 one and one-half and two and one-half times the diameters 



respectively, distal node not strongly constricted 



cory li Felt, C. 216 



11 



