On the Hymenoptera of the Georgetown Museum. 181 
strongly not very closely, transversely striated. Metapleure closely finely 
obliquely striated. Front broadly raised between the antenne and ocelli, the 
sides depressed, the depression narrowed above, the bottom, except at the 
top, finely, closely striated. Female. 
Length 27 m.m. 
Apex of clypeus transverse, its sides broadly rounded. Sides of scutellum 
keeled to shortly beyond the middle. 
Anomaline. 
The only member of this group in the collection is treated by Szépligeti (Gen. 
Ins. Ichn. Ophion, p. 3.) as a distinct group—Xiphiosomine. 
Xiphosoma mexicanum Cr. 
Proc. Acad. Phil. 1873, 380. 
A specimen smaller than any I have seen from Central America. 
Obs. Iphisoma as printed in Mr. Cresson’s papers l.c. seems to be a printer’s 
error for Xipho oma. The species appears to have a wide distribution. 
Xiphosoma striatum, sp.n. 
Rufo-testaceous, the head more yellowish in tint (the rufous tinge may be 
owing to discolouration), the antenne, the depressed central part of f ont, the 
stemmaticum, occiput, three large marks on mesonotum, apex of scutellum, post- 
scutellum, a stripe on the base of metanotum, narrowed in the middle, a large 
mark, longer than wide, sharply narrowed above, transverse below, on the 
basal two-thirds of the apical slope, an oblique line, commencing at the tubercles, 
where it is widened at the base and apex and running obliquely to near the 
bottom of the apex, its middle narrowed, rounded at the apex, the lower part 
with the apex squarely dilated, a small spot on the base of the sternal furrow, 
the base of the metapleu x, the base of petiole narrowly, the post-petiole, and the 
top of the other segments, black ; the four front legs pale yellow, the femora 
tinged with testaceous, the apices of the middle tarsal joints infuscated ; hind legs 
black, the apex of coxe narrowly, the greater part of the apical joint of the 
trochanters, a broad line on the apex of the femora and a narrow one on its apex, 
rufo-testaceous. Wings hyaline, the apex faintly and narrowly smoky, the 
stigma and nervures black ; the areolet oblique, narrow, twice longer than wide, 
pedunculated, the pedicle longer than the lower branch, the recurrent and the 
transverse median nervures interstitial. Female. 
Length 12 m.m.; terebra 4 m.m. 
Head smooth, a curved furrow bordering the outside of the ocelli, the part 
outside the furrow, next to the eyes raised ; the frontal depression finely, closely 
striated. Mesonotum trilobate, strongly, but not very closely punctured ; the 
scutellums smooth. Metanotum finely, closely striated, the strie st.onger on the 
outer edge. Mesopleure sparsely punctured on lower half; there is an oblique 
depression down the centre. Femoral tooth oblique, acutely pointed, longer 
than it is wide at the base. 
