Hymenoptera from New Caledonia. 235 
Subfamily Ceyerrvz. 
Buodias unicolor, sp. n. 
9. Nigra, pedibus palpisque rufo-testaceis ; antennis 32-articulatis, 
articulo quinto apice, articulis 6-13 omnino, 14-15 supra albido- 
flavis ; alis fuscis, venis nigris. 
Long. 15 mm. ; terebre long. 4°5 mm. 
?. Third and fourth antennal joints long, about equal in 
length, the fifth distinctly shorter, the joints beyond the fifth 
diminishing rapidly in length. Clypeus and face closely 
punctured ; front above the base of the antenne smooth and 
shining, somewhat concave, with a low carina reaching to the 
anterior ocellus, ocellar region finely punctured, vertex smooth 
and opaque. Clypeus strongly depressed at the apex, the 
apical margin transverse. Eyes separated from the base of 
the mandibles by a distance equal to the length of the third 
joint of the fore tarsi. Pronotum rounded at the angles ; 
mesonotum closely punctured- granulate, the parapsidal 
furrows deep; mesopleura and mesosternum closely punc- 
tured, the longitudinal groove between them well developed, 
mesosternum with a low transverse carina anteriorly ; meso- 
pleure anteriorly with a marginal carina. Scutellum smooth 
and shining, strongly convex, with a deep transverse depres- 
sion at the base; postscutellum obliquely striated. Median 
segment broader than long, with a small smooth and shining 
rectangular enclosed area at the base; from each hind angle 
of the area runs an oblique carina not quite reaching the 
lateral margin of the segment, the portion of the segment 
before the carina irregularly punctured-rugulose ; the portion 
behind the carina punctured-rugose, obliquely striated in the 
middle and also at the base of the posterior truncation; the 
spines at the hind angles of the dorsal plane stout and well 
developed ; the apex of the dorsal plane is somewhat elevated 
in the middle and almost carinated in the middle of the 
apical margin. Abdomen shining ; the first segment smooth, 
longer than the second, the basal half forming a petiole, the 
apical half rapidly broadened, half as broad at the apex as 
the second segment, the spiracles nearer to each other than to 
the apex of the segment; the remaining segments closely and 
minutely punctured ; the second segment longer than broad ; 
the abdomen about half as long again as the head and thorax 
combined. Areolet rectangular, much longer than high, 
receiving the second recurrent nervure close to the apex. 
