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Show 1889.] INSECTS FROM M O U N T KINIBALU. 387 XENOLOBA, nov. gen. Genus inter subfam. Gymnetinse et Macronotinse collocandum. Corpus postice gradatim angustatum,supra deplanatum,velutino-opacum. Clypeus antice sensim dilatatus, apice medio anguste sinuato angulisque late rotundatis ; fronte medio obtuse carinata. Antennce clava valde elongata. Palpi elongati, gracillimi. Thorax trapezoideus, sed ad basin elytris multo angustior mar-gineque laterali ante basin breviter sinuato: supra cequalis disco postice vix lineatim impresso, lobo basali magno postice vix angustato apiceque late rotundato. Scutellum mediocre, apice acutum. Elytra sicut in Macronotis ad humeros dilatata deinde usque ad apicem anyustata abdominisque latera haud tegentia. Processus sternalis sat elongatus, paullo oblique dependens, sub-compressus, apice superiore paulo acuto. Tibiee anticce acute tridentatce, posticce extus leeves apice longe bispinosee. The very beautiful Cetonid which constitutes this genus connects in some measure the two large groups Gymnetince and Macronotinee. The thorax is nearly evenly convex, and its posterior lobe and its relations to the scutellum are not widely different from the same in the genus Desicasta. XENOLOBA SPECIOSA. Saturate viridis, sericeo-opaca, elytris fulvis plaga magna communi trilobata (utrinque albo trimaculata) fere nigra: capite antice flavo-metallico glabro grosse punctato, postice viridi-velutino, vittis duabus fiavo-iomentosis : thorace sparse setifero-punctato immarginato, sed lateribus antice intra marginem depressiusculis et fiavo-tomentosis : elytris utrinque haud profunde bisulcatis, sulcis interiore tri- exteriore subtiliter bi-striatis striaque simili suturali, alteris 2-3 propinquis, versus apicem. Pygidium longe erecte pilosum, nigrum, opacum, utrinque macula magna ochracea. Pedes fulvo-testacei, ceneo-tincti. Subtus viridi-velutina, erecte fulvo-pilosa, abdomine utrinque fasciis 4, metasterno fasciis 2, episternis anterioribus et maculis variis, ochraceis. L,ong. 18 millim. Two examples. CHALCOTHEA(PLECTRONE) AURIPES, Westw. Tr. Ent. Soc. 1874, p. 474, t. vii. fig. 2($); Ritsema, Midden-Sumatra, Col. t. ii. figs. 6, 6b', 6c, 6d', 6e ( 2 )• 3 . A fcemina differt solum tibiis anticis angustis extus inermibus, intermediis intus medio incurvatis, posticis intus usque post medium dilatatis, ibique subito angustatis et lobo acutissimo unciformi armatis ; ventro medio depresso, apice impunctato. The female only was known to Westwood and Ritsema. Our examples agree exactly with the characters given by the latter to distinguish the species from C. virens, which was also apparently known only in the female. I find the inner spur of the hind tibia in the male only a little obtuse at the apex, not obtusely truncated as figured by Ritsema. |
