1902.] SPIDERS FROM BORNEO AND SINGAPORE. 237 
pubescence is denser at the apices of the segments, forming here 
narrow yellow bands; the wings are flavo-hyaline, sometimes with 
a brown stigma. 
The mimic is of a reddish hue, the abdomen is a little paler, 
corresponding to the red-brown seen through the golden pubescence 
of the wasp’s abdomen; the apex of each segment is narrowly 
banded with yellow. The wings are broadly hyaline along the 
costal margins and there is a brown stigma, A closely allied 
species from Celebes is unnamed in the British Museum. 
Both this and the preceding Mantispa were referred to Mr. R. 
McLachlan, who pronounced them to be undescribed species. 
iv. Mimic. JMJantispa ? cora (Newm.). 
Model. JMesostenus sp. 
A small black-and-yellow banded Mantispa was caught on the 
hill, Bukit Timah, at Singapore amongst short undergrowth, and 
at the same time I took also several specimens of a common 
Ichneumon-fly very similarly coloured. The Mantispa wasextremely 
active on the wing and at first sight almost indistinguishable from 
its model. I append some colour notes on the two insects :— 
Mantispa.—Ground-colour of head, thorax, and abdomen black, 
the following bands bright yellow—two vertical on the face, one 
transverse on the vertex, an anterior transverse and three longi- 
tudinal on the prothorax, one transverse on both meso- and 
metathorax, which are ventrally blotched with yellow ; abdomen 
alternately banded black and yellow. Anterior legs yellow 
blotched with black, mid- and posterior femora broadly banded 
black and yellow. Bases of wings yellow and a distinct black 
stigma on the fore wings. 
Mesostenus sp.—Head yellow; prothorax black bordered with 
yellow and with two central yellow stripes ; mesothorax yellow 
with a central black spot; metathorax posteriorly yellow ; abdomen 
banded alternately black and yellow. Legs yellow blotched with 
black. Anterior wings with a conspicuous stigma. 
I subsequently found the same species of Mantispa or a close 
ally in Borneo, frequenting the blossoms of a Hibiscus ; the plant 
was also visited in considerable numbers by a small yellow-and- 
black Zearia and by a similarly coloured ichneumon-fly ; a some- 
what careful scrutiny was needed to distinguish these insects one 
from the other. 
Ill. COLEOPTERA AS MIMICS. 
I wish especially to acknowledge the kind assistance received 
from Mr. GC. J. Gahan in working out this section of my paper. 
Most of my examples are taken from the Longicornia, and 
have drawn up tables of the mimetic species of the group occurring 
in Borneo. I have made these as complete as possible, but there 
are a few described species which I have not seen and which have 
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