370 Mr. H. J. S. Pryer on two remarkable 



Antennae, head, thorax, and body, jet-black ; wings also 

 black, but having a large conspicuous white patch 

 occupying the apical third of the wing ; tip of the wing 

 black.* 



It will be seen that they agree in shape and colour, 

 and the only difference is an unimportant one, in the 

 length of the antennae ; the shape of the beetle agrees 

 as nearly as it is possible to imagine insects so widely 

 separated as a wasp and beetle could be. 



It is singular that there is also a second species of 

 wasp very closely resembling the one described, also 

 common in North Borneo ; it is, however, rather larger, 

 and with yellow antennae instead of black. 



The second case is a large lepidopterous insect, a 

 Sesia, mimicking a very large hymenopterous Scolia : — 



Description. — The moth is a male, and therefore pre- 

 sumedly somewhat smaller than the female. Size, 

 1^ in. long ; expanse of wings, 2 in. Antennae, |- in. ; 

 hind legs nearly as long as the body, very hairy. Colour : 

 Antennae black ; palpi yellow ; head black ; upper part 

 of thorax black, lower part yellow ; body black, with a 

 conspicuous yellow band in the middle, and a little 

 yellow on Ihe 1st segment ; legs black ; wings of a 

 uniform metallic blue-black, only excepting a clear space 

 on the anal angle of the hind wing.f 



* Mygnimia aviculus, Sauss. (Described from Java). — W. F. 



KiRBY. 



f SCOLIOMIMA, n. g. 



Allied to the African genus Toosa {=Ninia) ; primaries elon- 

 gated, rather narrow, the costal margin nearly straight, slightly 

 arched towards the apex, which is moderately acute ; outer margin 

 very oblique ; inner margin nearly straight ; costal vein lying very 

 close to the margin, terminating a little beyond the middle of the 

 costa ; subcostal five-branched, the first two branches emitted 

 before the end of the cell ; the third and fourth emitted from the 

 anterior angle of the cell, the fifth forkmg from the fourth half-way 

 between the cell and the outer margin ; disco-cellulars forming an 

 oblique zigzag line ; upper radial emitted above the middle of the 

 disco-cellular ; lower radial and third median branch emitted close 

 together, and widely diverging from the first and second branches, 

 which are also emitted close together ; the whole (o ,ving to the 

 narrowness of the wing) being somewhat crowded together at the 

 inferior extremity of the cell; submedian following the inner 

 margin in its slight deviation from a straight line ; secondaries 

 elongated, with nearly straight costal margin ; oiiter margin very 

 gi-adually arched to abdominal margin, which is short and straight; 

 costal vein running close to edge of costa ; subcostal branches 

 running parallel to about the basal third, where they unite 



