1902.] SPIDERS FROM BOUXEO A?^D SIXGAPORE. 245 



models. Xyaste invida (Plate XXIII. jS.g. 26) and X.fumosa 

 (Plate XXIII. jSg. 25) are black with the basal half of the elytra 

 reddish ; a similarly coloured Lycid model, Melmnpyrus acutan- 

 g'uhcs (Bourg.) (Plate XXIII. fig. 23), is common round Kuching. 

 X. torrida (Pasc.) is brownish-testaceous with a corresponding 

 brownish-testaceous model — Ditoneces sp. (Plate XXIII. fig. 29). 

 Of the Astatheinse, Astathes unicolor (Pasc.) { — coccinea Pasc), a 

 large species with purplish reflections on the elytra (Plate XX. 

 fig. 18), has immistakable models in similarly coloured Galerucids 

 — Antipha sp. and Ochralea nigripes (Plate XX. fig. 17). The 

 next three species — A. posticalis (Plate XX. fig. 22), A. flccvi- 

 ventris (Pasc), A. splendida (Plate XX. fig. 20) — all closely 

 resemble each other, being dark shining blue anteriorly, red 

 posteriorly ; flaviventris, as its name signifies, has a yellow ab- 

 domen, whilst splendida has a red head and prothorax. The 

 latter species mimics an equally resplendent Galerucid — Caritheca 

 mouhoti (Plate XX. fig. 19), and the slight differences between 

 A. flaviventris and A. posticalis are paralleled in two closely-allied 

 Galerucidse — Antipha ahdominalis (Jac) and A. ? nigra (Alld.) 

 var. (Plate XX. fig. 21), the former of which alone has a yellow 

 abdomen. A- caloptera (Pasc), a blue species, finds a model in 

 Haplosonyx alhicornis (Wied.) (compare figs. 23 & 24, Plate XX., 

 and see explanation of this Plate for a few further examples given 

 in Table II. but not again mentioned in the text). 



The remaining genera of the subfamily, as represented in 

 Borneo, have coi'responding models, also among the Galerucidse, 

 the resemblance between Ochrocesis evanida (Pasc.) and its model, 

 Hoplasoma unicolor (111.) var. ventralis (Baly), being very 

 exact. All these genera — Tropimetopa, CJireonoma^ and Ochro- 

 cesis — are unicolorous, and form with the unicolorous Saperdincc 

 and numerous ^ Galerucidse and Halticidse a large group of 

 similarly coloured beetles, all of which I consider to be dis- 

 tasteful. 



The subfamily Hippopsinoi contains four species, each mimetic 

 of a species of the Rhynchophorous family Brenthidee. The first, 

 Alibora sp., mimics Baryrrhynchus dehiscens (Sch.) (compare 

 fig. 3 with 1 & 2, Plate XX.). The general colour of both model 

 and mimic is a rich chestnut-brown, variegated on the elytra 

 with bright yellow streaks and spots ; the three basal joints of 

 the antennae of the Longicorn are clothed biramously with long 

 and close-set hairs. In the natural attitude the elongated scapes 

 are closely pressed together, the remaining joints gradually 

 diverging, the result being a remarkable resemblance to the 

 head with its elongated rostrum and shorter antennae of the 

 Brenthid, which only a closer examination proves to be deceptive ; 

 the short legs of the mimic add still further to the resemblance. 



All the other three species of Hippiopsinm mimic extremely 

 common species of the Brenthid genus Diurus (Plate XX. 



■^ I have not included in the table all the unicolorous Galerucida? and Halticidao 

 with which I am acquainted ; those that are included are merely typical examples. 



