' 7° 



Cincinnati Society of Natural History. 



A NEW GENUS AND SPECIES OF PROCTOTRYPID-K 

 AND A NEW SPECIES OF BRACHYSTICHA, 

 BRED BY PROF. F. M. WEBSTER. 



By William H. Ashmead. 



FAMILY PROCTOTRYPIDiE. 



Sub-family Platygasterix.e. 



Fidiobia, gen. now Head transverse, as wide as the widest 

 part of the thorax; viewed from in front, wider than long; 

 the frons smooth, subconvex, ocelli 3 in a triangle, the lateral 

 much nearer to the eye margin than to the front ocellus; the 

 antennae inserted near the mouth, in 9 8-jointed, ending in 

 an ovate 3-jointed club ; the scape subclavate as long as the 

 face, the pedicel cyathiform, a little longer than thick at apex ; 

 the funicle 3-jointed, the first two joints not or scarcely 

 longer than thick, the third wider than long. Thorax sub- 

 ovoid, a little longer than wide, the mesonotum smooth with- 

 out sharply defined furrows, although these are more or less 

 slightly indicated posteriorly by two longitudinal impressions; 

 scutellum lunate, flat, separated from the mesonotum by a 

 delicate transverse line, but without fovea ; metanotum with 

 two minute foveolae; wings hyaline, without nervures. 



Abdomen sessile, oblong, truncate behind and a little 

 narrowed toward base, the first segment wider than long, the 

 second occupying the whole of the remaining surface, the 

 terminal segments evidently being retracted. 



This genus should be placed in my table, Monogr. N. A. 

 Proctotrypidae, p. 263, between Anopedias Forst. and Amitus 

 Haliday. 



It agrees with the latter in having 8-jointed antennae, but 

 their structure is totally different. They are very short and 

 the club is 3-jointed, while in Amitus they are long and the 

 club is unjointed ; otherwise, in shape and structure of thorax 



