EXPEDITION TO SOKOTRA : NEW SPECIES. 13 
extremity. Intermediate coxal cavities almost completely closed in ex- 
ternally. 
This genus belongs to the group Ptericoptides, and seems best placed 
near Sybra Pase., which it approaches in general form and in many of its 
structural characters, differing chiefly in its more widely divergent tarsal 
claws, in its relatively longer scape and shorter third joint of the antenne, 
and in the presence of a serrate ridge on the outer border of the anterior 
tibiee. 
(15) Sybrinus commixtus. 
Pube fulvo-grisea, fusco et cinereo plagiata obtectus ; antennis fusco- 
annulatis ; prothorace supra plaga oblonga sub-glabra fusca, crebre sat valde 
punctato ; elytris plaga cinerea obliqua et macula fusca utrinque paullo ante 
apicem. Long. 11, lat. 35 mm. 
Habitat. Sokotra : (Adho-Dimellus, alt. 3500-4500 ft, IT. 99). 
Closely covered with a fulvous or fulvous grey pubescence. Disk of 
prothorax with a broad sub-glabrous fuscous band, closely and rather strongly 
punctured, extending along the middle from the base to the apex. Elytra 
with small fuscous spots anteriorly and along the sides, each with a large 
oblique cinereous patch, followed by a lunate blackish brown spot, placed a 
little in front of the apex ; the elytra are punctured, with the punctures 
visible only where the pubescence has been rubbed away, and each shows 
indications also of three or four slightly raised longitudinal lines. 
XII. Descriptions of the New Species of 
Hymenoptera. 
By W. F. Kirsy. 
A. Ilymenoptera from Sokotira. 
Hymenoptera Terebrantia. 
Entomophaga. 
Chalcidide. 
Leucospidine. 
Leucospis, Fabricius. 
(1) Leucospis insularis. 
Long. corp. 12 mm; long al. ant. 9 mm. 
Female. Very thickly and coarsely punctured, clothed with a thin grey 
pile. Head black, face more finely punctured than the vertex ; antenne, 
including scape, and mandibles, except at the tips, red ; joints 8 and 9 blackish 
above, and 6 and 7 more slightly. Pronotum red, with a transverse yellow 
line in front, interrupted in the middle ; behind it are two distinct transverse 
unicolorous carinz, besides the terminal one. Mesonotum black, with the 
