1902. ] SPIDERS FROM BORNEO AND SINGAPORE. 245 
models. Xyaste invida (Plate XXIII. fig. 26) and X. fumosa 
(Plate XXIIT. fig. 25) are black with the basal half of the elytra 
reddish ; a similarly coloured Lycid model, Melampyrus acutan- 
gulus (Bourg.) (Plate XXIII. fig. 23), is common round Kuching. 
X. torrida (Pase.) is brownish-testaceous with a corresponding 
brownish-testaceous model—Ditoneces sp. (Plate XXIII. ae 29). 
Of the Astatheine, Astathes unicolor (Pasc.) (= coccinea Pasc.), a 
large species with purplish reflections on the elytra (Plate XX. 
fig. 18), has unmistakable 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, flavi- 
ventris (Pasc.), A. splendida (Plate XX. fig. "20)—all closely 
resemble each other, being dark shining blue anteriorly, red 
posteriorly ; Toe ae 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 
Galerucidee—Antipha abdominalis (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 albicornis (Wied.) (compare figs. 23 & 24, Plate XX., 
and see explanation of this Plate for a few further examples given 
in Table IT. but not again mentioned in the text). 
The remaining genera of the subfamily, as represented in 
Borneo, have corresponding models, also among the Galerucide, 
the resemblance between Ochr ocesis evanida (Pase. )and its model, 
Hoplasoma wunicolor (Ill.) var. ventralis (Baly), being very 
exact. All these genera—Tvropimetopa, Chreonoma, and Ochro- 
cesis—are unicolorous, and form with the unicolorous Saperdine. 
and numerous’ Galerucide and MHalticide a large group of 
similarly coloured beetles, all of which I consider to be dis- 
tasteful. 
The subfamily Hippopsine contains four species, each mimetic 
of a species of the Rhynchophorous family Br enthide. 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 antenne 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 antenne 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 Hippopsine mimic extremely 
common species of the Brenthid genus Diuwrus (Plate XX. 
 T have not included in the table all the unicolorous Galerucide and Halticide 
with which I am acquainted ; those that are included are merely typical examples. 
[17] 
