OCR Text |
Show 1884.] ON COLEOPTERA FROM THE T1MOR-LAUT ISLANDS. 213 variously arranged ; belly granulate; a triangular, papillose, dermal flap on the tip of the snout, on the edge of the upper eyelid, above the vent, and on the heel. Colour and markings very variable. Male with two internal vocal sacs. From snout to vent 85 millim. Treasury, Shortland, and Faro Islands. 3. O n the Coleopterous Insects collected by M r . H . O. Forbes in the Timor-Laut Islands. By C H A S . O. WATERHOUSE. [Eeceived March 27, 1884.] (Plate XVI.) The number of species of Coleoptera collected by Mr. Forbes in the Timor-Laut Islands is twenty-nine. Of these the following deserve special notice on account of*their geographical distribution :- 1st. Diaphoetes rugcsus, a new genus and species of Staphylinidae, which Mr. David Sharp informs m e he possesses from Java. 2nd. Cyphogastra angulicollis (from Larat), a species of B u - prestidse, only previously known from Banda. 3rd. Cyphogastra splendens (from Maroe), a new species closely allied to the preceding. 4th. Archetypus rugosus, n. sp. This genus of Longicorns, of which there was only one species previously known, occurs in Waigiou, Dorey, and Aru. 5th. Pelargoderus rugosus. Another new Longicorn closely allied to P. arouensis. 6th. Nemophas forbesii. A third new Longicorn nearly allied to N. grayi from Amboyna. CARABIDJE. C A T A S C O P U S A M C E N U S , Chaud. Two specimens which may perhaps be merely varieties of this species. They are, however, darker in colour than any in the British-Museum collection, being of an obscure olive-aeneous, shading into dark purple at the sides of the elytra. Hab. Maroe. STAPHYLINID^;. DIAPHCETES, n. gen. General characters of Staphylinus, but with the head smaller than is usual in that genus. Labial palpi robust, with three visible joints ; the first and second short, the apical one very large and cup-shaped. The maxillae are very broad, the inner lobe a little longer |