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Show 230 MR. M. JACOBY ON PHYTOPHAGOUS COLEOPTERA [Mar. 6, LEFEVREA ABDOMINALIS Jac. Of this species described by myself (Proc. Zool. Soc. 1897, p. 529) both sexes have now been sent by Mr. Marshall, taken by him " in cop." They prove that the male is of totally different coloration to the other sex and of smaller size, but w-hether this is always the case I have not enough material before me to judge from. I give here the description of the male insect:- Blackish aeneous, the basal joints of the antennae and the legs more or less fulvous ; thorax strongly and somewhat closely punctured ; elytra finely punctate-striate anteriorly only, greenish-aeneous ; a humeral spot of semitriangular shape, flavous. Length 2 millim. In comparing the description of the typical form, the female, it will be seen that the latter is larger, devoid of the elytral humeral spots, and that the abdomen is fulvous : these differences are great and peculiar, but there is certainly no difference in the sculpturing between the two sexes, nor in tbe structure of the antennae ; and if, as I remarked above, the differences between the two sexes are constant, it proves again how important it is to know the sexes in descriptive entomology before one can judge a species with certainty. LEFEVREA HIRSUTA, sp. n. Black, the antennae and legs pale fulvous; thorax strongly punctured and pubescent; elytra more finely punctured in rows, pubescent, flavous, the sutural and lateral margins and a spot near the middle greenish black. Length 3 millim. Head blackish, with an aeneous tint, sparingly punctured and pubescent, the clypeus not separated from the face, the labrum and palpi fulvous ; antennae entirely flavous or fulvous, not quite extending to the middle of the elytra, the lower joints nearly equal in length, the terminal six joints widened ; thorax scarcely twice as broad as long, the sides rounded, the angles not produced the surface of equal width, dark aeneous or greenish, remotely and strongly punctured, the interstices clothed with long pale hairs ; scutellum rather broad, piceous; elytra slightly wider than the thorax, subcylindrical, rather finely punctate-striate, flavous the surface clothed with long greyish-white hair, the sutural and lateral margins dark greenish, the sides with a subquadrate dark oreenish spot immediately below the middle and attached to the lateral margin, another similar very small spot is (sometimes) seen within the humeral callus ; below black with a slight metallic gloss ; le^s fulvous, the femora unarmed, the tibiae not emarginate, the claws appendiculate ; prosternum narrow, convex, and truncate at the base. Hab. Salisbury, Mashoualand (67. 31arshall). From the other species of the genus described by m e in a previous paper (Proc. Zool. Soc. 1897, p. 527) the present one differs entirely in tbe long pubescence of the upper surface and in its coloration, but not in structural characters. |