256 



Female: Entirely pale brownish yellow inclining to fulvous on the 

 abdomen. Frontal carintc margined with brown, tip of the rostrum and 

 antennal joints dusky. Legs marked as in the male. Pygofers broad and 

 short, subquadrate, their apical sinus rather deep ; oviduct broad at base, 

 black and slightly exceeding the inner angle of the pygofers. Length, 

 male 2 m. m. ; female, 2>^ m. m. 



I believe I have correctly placed the sexes of this species although I 

 have never found them pairing. Though very different in color the form 

 and markings are the same and they have always been taken in company. 



New York, Ontario. Described from eight male and seven female 

 examples taken near Muskoka Lake, Ont. about the first of August 1S88 and 

 a single pair captured at Lancaster, N. Y. early in July. This species can 

 hardly be compared with any european species known to me. 



LIBURNIA OCCLUSA, n. sp. 



Small; black; front broad, oval. Length, male i^, female 2\i, m. m. 

 Brachypterous form. Vertex large, nearly square, seperated from the 

 front by an obtusely carinated edge ; carinse prominent. Front broad, oval, 

 truncated at the clypeus, width two thirds the length, carinte distinct. 

 Pronotum atid scutellum thickly punctured, with an impressed point in each 

 discal compartment, hind margin feebly angularly concave, apex of the 

 scutellum obtu.se, not abrupt, transversely rugose. Elytra hardly passing 

 the middle of the abdomen, the tw^o sectors about equally forked, abdomen 

 with a dorsal carina; hind tibise bispinose. 



Male: Black ; carinse of the head, narrow edge of the dorsal abdominal 

 segments, apical half of the second joint of the antennae, knees and tips of 

 the tibite and tarsal joints, pale. Pygofers slightly contracted apically, 

 ventral notch deep, narrow, dorsal broad, reaching to the ultimate dorsal 

 segment; aperture rather narrow, subtriangular, the incurved margins 

 broad below, fringed with long pale hairs. Stiles narrow, lanceolate, sub- 

 acute and slightly fringed at apex, but little divergent above; ventral aspect 

 of the anal tube produced each side in an obscure tooth. 



Female: Piceous black; all the carime, apical half of the second anten- 

 nal joint, calloused base of the front, disc of the frontal compartments, 

 knees, tips of the tibiae and the posterior tarsi their apex excepted, soiled 

 white or fulvous. Pygofers broad and short, oviduct attaining the apex of 

 their inner margin. 



One macropterous female which seems to belong here has the scutellum 

 large, convex, finely punctured on the sides, with the lateral carinte obsolete 

 and the apex somewhat abrupt. The elytra are a little longer than the 

 abdomen, whitish hyaline, with strong piceous nervures, the fork of the 

 first sector longer than that of the second. 



Los Angeles, Calif. Described from one male and two female examples 

 received from Mr. D. W. Coquillett (Nos. 191 and 192.) This little species 

 is closel}' allied to L. lineatipes but aside from the male genital characters. 



