64 



ME. F. SMITH ON HTMENOPTEROUS INSECTS 



three or four joints, white about one-third from the apex. Thorax and 

 legs ferruginous ; the thorax rugose above j the scutellum, a spot on 

 the raetathorax above, the apical portion of the sides, an irregular- 

 shaped mark beneath the wings, and the coxae in front or with marks 

 on the sides, yellow ; wings flavo-hyaline, with a dark fuscous oblong 

 macula crossing the middle of the marginal cell and terminating in a 

 point at the inferior margin of the discoidal cell. Abdomen shining 

 black j a bell-shaped mark in the middle of the first and second seg- 

 ments, and a large subovate spot on each side of the three following, 

 with a narrow line at the sides of the sixth, yellow j the ovipositor 

 black, its sheaths ferruginous . 

 The male is ferruginous, with the head yellow, the vertex black ; the 

 thorax roughly striated transversely ; the metathorax above and the 

 abdomen smooth and shining; the wings as in the female. 

 Hab. Celebes (Tondano). 



G-en. Xylonomus, Grav. 



1. Xylonomus flavifrons. X. capite thoraceque nigris flavo varie- 

 gatis, pedibus abdomineque ferrugineis, alis hyalinis iridescentibus. 



Female. Length 6 lines, of the ovipositor 6 lines. Head and thorax 

 black ; the face, cheeks, and orbits of the eyes yellow ; the antennae 

 black, with the base of the flagellum beneath fulvous. The posterior 

 margin of the prothorax, a line over the tegulae, a quadrate spot on 

 the disk of the mesothorax, the scutellum, and metathorax yellow ; 

 the disk of the mesothorax transversely striated ; a spot beneath the 

 wings and the coxae yellow ; the femora and tibiae splashed with yel- 

 low ; the wings hyaline and iridescent. The abdomen smooth and 

 shining, ferruginous, with the margins of the segments of a darker 

 hue ; the ovipositor black, its valves ferruginous. 



Hab. Gilolo. 



Gen. Epixomdes. 



Head subglobosc, antennae slender and elongate ; thorax oblong subcylin- 

 dric ; scutellum flat and quadrate ; the anterior wings with one elongate 

 marginal cell pointed at the base and apex ; the apical submarginal eel- 

 transverse at the base ; the apical ncrvure of the discoidal cell suban- 

 gular, with an abbreviated ncrvure emanating from the point of the 

 angle. Abdomen pctiolated ; the legs slender and elongate. 

 This fine species does not appear to belong, strictly, to either the genus 

 Xorides or Xylonomus, but rather to form a new genus intermediate be- 

 tween them ; the ncuration of the wings is very like that of the genera 

 above-mentioned : a reference to the figure will show the difference. 



1. EpiXOKIDEl CHALTBSATOB. E. nigro-chalybeus, frontc facicquc 

 Hubchulybeis, genii verticeque rufescentibns ; alis subviolaccis, stig- 

 Eoate parvulo pallido, metathorace quadricarinato ; pedibus anticis 

 rufescentibns, intermediis et potticil nigro-violaccis. 



Male. Length 1 1 lines. Head ferruginous, with the face chalybcous; 



