64 MR. F. SMITH ON HYMENOPTEROUS INSECTS 
three or four joints, white about one-third from the apex. Thorax and 
legs ferruginous ; the thorax rugose above; the scutellum, a spot on 
the metathorax above, the apical portion of the sides, an irregular- 
shaped mark beneath the wings, and the coxe 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; 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; 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). 
Gen. 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 antennz 
black, with the base of the flagellum beneath fulvous. The posterior 
margin of the prothorax, a line over the tegule, 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 coxe yellow; the femora and tibize 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. Errxonip£s. 
Head subglobose, antennz 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 cel- 
transverse at the base; the apical nervure of the discoidal cell suban- 
gular, with an abbreviated nervure emanating from the point of the 
angle. Abdomen petiolated ; 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 neuration of the wings is very like that of the genera 
above-mentioned: a reference to the figure will show the difference. 
1, EprxoRIDES CHALYBEATOR. J. nigro-chalybeus, fronte facieque 
subchalybeis, genis verticeque rufescentibus; alis subviolaceis, stig- 
mate parvulo pallido, metathorace quadricarinato; pedibus anticis 
rufescentibus, intermediis et posticis nigro-violaceis. 
Male, Length 11 lines. Head ferruginous, with the face chalybeous; 
