﻿256 



Echthro gonatopus gen. nov. 



Head shaped much as in Echthrodryinus, the face inflexed, the 

 eyes large, the space, where least, between them, much less than 

 the width of one of these ; face between the eyes with very minute 

 surface sculpture, the lateral ocelli near the eye margins, the 

 eyes themselves sparsely hairy, the hairs not very easily seen. 

 Antennae inserted far below the middle of face, scrobes elong- 

 ate, scape simple, elongate, and funicle six-jointed, the funicle 

 joints wide and short, the club large and about as long as the 

 funicle, the pedicel about as long as the three basal funiclar 

 joints. Mandi'bles distinctly tridentate, the maxillary palpi mo- 

 derately long, 4-jointed, the apical joint the longest, the labial 

 palpi with three short joints, which together are about half as 

 long as the maxillary. Mesonotum with short white deciun- 

 bent hairs or setae ; the axillae touching, or nearly touching, in- 

 wardly. The scutellum has a very dense sculpture and is ex- 

 tremely dull for the most part, and contrasts strongly with the 

 metallic and finely punctured mesonotum. The wings have an 

 obliquely transverse, hairless line (sometimes incomplete or in- 

 tt,'rrupted) extending from the stigmal vein, which is short and 

 clavate, the post marginal vein also very short, the marginal 

 always longer than the stigmal, sometimes two or three times 

 as long, marginal fringe short. 



Male differs in its much smaller eyes so that the front between 

 these is consequently wide, wider than one of the eyes. The 

 face is metallic like the mesonotum, the antennae are much more 

 elongate than those of the female, the pedicel subequal to the 

 first of the six funicle joints, all of which are elongate ; the club 

 subequal to the two preceding. 



This genus is here made to include two species, which, how- 

 ever, according to the views of Foerster and Ashmead would 

 be generically separated, owing to the difference in the shape of 

 the head, the length of the marginal vein and the position of the 

 ocelli. 



Plate XX, fig. I and 2. 



Echthrogonatopus cxitiosns, sp. nov. 



Female : head with greenish or other metallic lustre, the front 

 microscopically sculptured, rougher about the ocelli, and with 

 traces of larger, shallow punctures. Antennae black, the club 

 wide, flattened, subequal to the funicle. Mesonotum somewhat 



