no. 2072. NEW SPECIES OF GALL MIDGES— FELT. 199 



Female. — Length, 1.5 mm. Antennae nearly as long as the body, 

 rather thickly haired, yellowish; 23 segments, the first somewhat 

 produced, with a length one-half greater than its diameter, the third 

 with a length five times its diameter, the fifth with a stem one-fourth 

 the length of the cylindric basal enlargement, which latter has a 

 length twice its diameter and a rather thick subapical whorl of long, 

 stout setae; low circumfili occur near the basal fourth and sub- 

 apically ; terminal segment evidently composed of three rather closely 

 fused units and having a length at least four times its diameter and 

 showing a distinct constriction near the basal third, a less evident 

 one just beyond the middle and terminating in a short, stout, finger- 

 like process. Palpi; first segment subquadrate, with a length twice 

 its diameter, the second one-half longer than the first, the third 

 nearly twice the length of the second, and 

 the fourth one-third longer than the third, 

 the segments successively more slender. Mes- 

 onotum reddish brown, the submedian lines 

 yellowish. Scutellum whitish, postscutellum 

 and abdomen brownish yellow, the latter 

 thickly haired. Ovipositor nearly as long as 

 the body, slender, recurved dorsally. Wings 

 hyaline, the fifth and sixth veins simple. 

 Halter es yellowish white. Coxae yellowish. 

 Legs dark straw, the distal tarsal segments fig. l— diagram of fifth an- 

 somewhat fighter, the pulvilli nearly as long TENNAL SEGMENT > female, 



., . T , . , ., , rro RUBSAAMENIA MULTINODA. 



as the strongly curved uniden t a te claws . The 



terminal lobes of the ovipositor indistinctly triarticulate, the two 

 basal subquadrate, each with a length a little greater than its diame- 

 ter, the terminal lobe narrowly oval, all sparsely setose. Type Cecid. 

 1531. 



Type.— Cat. No. 18486, U.S.N .M. 



CTENODACTYLOMYIA, new genus. 



The remarkable midge described below is referable to the Dasy- 

 neuriarise and runs in our keys to Rhizomyia, from which it is easily 

 distinguished by the larger number of antennal segments and in 

 particular by the pectinate claws. It is a highly specialized form, as 

 evidenced by the very long, narrow wings and the rudimentary con- 

 dition of the anterior branch of the fifth vein. 



Type of the genus. — Ctenodactylomyia watsoni, new species. 



CTENODACTYLOMYIA WATSONI, new species. 



A number of midges were reared from nippled, blistered leaf galls 

 on Coccolobis jloridana, collected by Mr. C. J. Cragin, at Palm Beach, 

 Fla., March 18, 1914, and submitted for study by Prof. J. R. Watson, 



