403 INSECTS ABKOAP. 



bipustulatus, described by myself in the " Ann. and Mag. of 

 Natural History," vol. vii., Second Series, 1851, from a specimen 

 captured at Para by Mr. Bates, now in the possession of William 

 Wilson Saunders, Esq. The insect was not enveloped in any 

 pellicle, nor had the cell been closed in any way; the wings 

 were, crumpled at its side, as is usual in Hymenopterous insects 

 which have not expanded them, proving satisfactorily that it 

 had never quitted the cell, and that Trigonalys is the parasite 

 of Polistes. 



" This discovery is one of much interest, proving the relation- 

 ship of the insect to be amongst the pnpivora — to which family 

 it had been previously assigned by Mr. Westwood. (See vol. iii. 

 Ent. Trans., p. 270.) The specimen is seven lines in length, 

 entirely black, the head shining, the thorax and abdomen opaque, 

 and having two white macula? touching the apical margin of the 

 basal segment above; the wings are smoky, the antenna? broken off. 

 Of one of them I found subsequently seventeen joints— the perfect 

 insect in the possession of Mr. Saunders having twenty joints." 



The specific name of bipustulatus, or "two-spotted," has been 

 given to the insect on account of the two white spots on the 

 base of the abdomen, but its original name of comprcssus, as 

 given to it by De Geer, is now allowed to stand. 



The figure which is here given represents the neuter of the 

 splendid Chinese Wasp, which is appropriately called Vcspa 



Fn; •}&:■ — Vespa mandarinia. 

 (Orange ami dark brown 



mandarinia. The female is shown on Plato IX., Fig. 3. This 



