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INSECTS ABItOAD. 



Here we have an insect, the male of which is not known. 

 Indeed, so dissimilar are often the sexes in the Phasmidse, that 

 it is rather difficult to avoid the danger of labelling the male 

 and female as belonging to two different species. 



This insect has three distinct peculiarities, on account of 

 which it was selected for illustration. In the first place, the 

 sixth segment of the abdomen is much widened and flattened, 

 so as to assume an almost heart-like shape. 



Pterinoxylus diffonnipes. 

 (Brownish, with green elytra.) 



Secondly, the two front legs are fringed along the sides with 

 flat, foliated projections, deeply notched, and looking very much 

 like the edges of an oak-leaf. The middle and hind pairs of 

 legs are nearly simple, except that a slight projection near the 

 end of the thigh takes the place of the foliation. - It is in 

 allusion to this structure that the species has been named 

 " difformipes," i.e. differently formed legs. 



Thirdly, the wings themselves have a very curious structure, 

 which is not seen until they are spread. When closed, as seen 

 in tlie illustration, the wings look very like two sharply-pointed 



