OCR Text |
Show 226 MR. P. CAMERON ON | Mar. 19, median nervure is received in front of and not far from the transverse basal; the 2nd recurrent nervure is received at a slightly greater distance than the length of the first transverse cubital, not at double, or more than double, the distance as in Ophion. In the hind wings the transverse median nervure is broken shortly below the middle. Median segment reticulated, except at the base, where there is a transverse keel; its base is widely and deeply depressed. Abdomen more than three times the length of the thorax. This genus has greater affinity with Enicospilus than with Ophion. From the former it may be known by the absence of the horny points in the fore wings and by the transverse median nervure in hind wings not being broken far below the middle ; from Ophion it may be separated by the disco-cubital nervure not having a stump of a nervure and broadly rounded, by the apical abscissa o the radius being broadly curved upwards, and by the swollen base of the radius. LEPTOPHION LONGIVENTRIS, sp. nov. Luteus; segmento mediali reticidato; cdishyalinis,nervis stigmate-que nigris. 2 • Long. 21 mm. Antennae dark luteous. Head pallid yellow ; the face distinctly and closely punctured; on the top, in the middle below the antennae, is a stout smooth keel or elongated tubercle. Clypeus roundly convex, smooth, and sparsely punctured. Mandibles broad, smooth ; the apical teeth black and rounded at the apex, they are almost equal in length. The prothorax is paler, more yellowish in colour then the rest; the scutellum is minutely punctured ; the lateral keels are prominent only at the base; the apex is finely shagreened, almost striated. The depression at the base of the median segment is wide and deep ; in the middle there are some stout longitudinal striations ; the central two form a V-shaped area; the space between this and the curved transverse keel is smooth ; the rest of the segment is closely and coarsely reticulated, except the lower half of the metapleurse. Pro- and mesopleurae smooth and shining. Wings clear hyaline; the stigma and nervures black; the stigma is pale at the base : the basal abscissa of the radius is thickened ; the transverse median nervure is almost interstitial. The tarsi are minutely and thickly spinose ; the tibiae are thickly covered with short pubescence. The abdomen is paler than the thorax; apical three segments are brownish black. Mr. W . H. Ashmead (Proc. U.S. Nat. Museum, xxiii. p. 86) describes a genus Pleuroneurophion which has the radius swollen towards the base as it is in this genus and in Enicospilus; but it has a short nervure on the disco-cubital nervure and the transverse cubital nervure in hind wings is broken below the middle at the basal third, or at least far below the middle. The abdomen in our species is longer than usual compared with the length of the thor The eves are very large and prominent. The subdiscoidal nervure |