124 



JAMES WATERSTON. 



scutum referred to is always, as far as I have seen, fixed, and the fore wing appears 

 to originate posteriorly from the side of the scutellum at the level of the apex of the 

 axilla (fig. 2). Dr. Masi has {in litt.) pointed out how closely E. tarsatns approaches 

 in important characters to Ewpelmus degeeri, Dalm., and suggests that a new genus 

 should be erected for the reception of these species. 



In degeeri there is a line of weakness at the point where in larsatus the wing is 

 truncated and it may be that in freshly emerged examples tarsatus possesses the 

 .additional alar flap present in degeeri. 



Fig. 1. Wings of Eapelwinus tarsatns, Wtrst., $. 

 Description of the Male. 



(^. A black or dark brown species, only the first three tarsal joints of the mid and 

 the first two of the hind legs distinctly white. Antennae blackish, with the base and 

 the inside of the scape brownish, and in some lights traces of metalUc lustre on the 

 apex of the scape. On face, vertex and genae some dark greenish or cupreous 

 reflections. Thorax like head, propodeon and base of abdomen dark shining blue, 

 remainder of abdomen duller cupreous. Femora and tibiae, except indistinctly and 

 .shortly at the base, blackish with dull dark blue reflections on hind femora ; fore 

 tarsi fuscous, fourth and fifth tarsal joints of mid legs and third to fifth of hind legs 

 black. 



Head from in front rounded, as broad as long. Eyes with a short scattered 

 pubescence extending over about two-thirds of the depth in profile, the depth of the 

 eye being about twice the shortened genal space ; at their nearest point across the 

 frons the eyes are separated by 1^ diameters. Toruli reniform, narrower superiorly, 

 more than half below the base line of the eyes, with about 40 minute bristles 

 on the raised triangular area between the scapal grooves ; the latter bare, 

 all the rest of the frons and the vertex covered with short bristles ; orbital 

 bristles not differentiable. Clypeus smooth, regularly convex, with one shorter and 

 one longer bristle above at each side somewhat remote from the edge. The whole 

 reticulation is fine, regular and evenly raised on vertex, but becoming more scaly 

 towards the mouth-edge. As compared with the female head, that of the male is 

 shorter, the eyes approximated nearer the mid frons and not superiorly, the depressed 

 area between the scapal grooves not so sharply limited laterally, and the toruli higher 

 in position. Mouth-parts essentially as in female. The mandible is more suddenly 

 contracted apically. The first two joints of the maxillary palpi are in the same 

 ratio, the third is slightly shorter and the fourth distinctly so, while two and three 

 of the inner sub-apical bristles are much stouter in the male. 



