412 Dr. David Sharp on the structure of the 



22. Chrysocoris ornatus, Dall. (subfam. Scutellerince). 

 Hab. N. Indian Hills. Fig. 24, PL XIV.— This is a very 

 highly modified form, so far as the external parts of the 

 male segment are concerned. The diaphragm is very 

 abruptly folded in, is corneous, but is pallid in colour, 

 and is marked by numerous series of black file-like (or 

 comb-like) asperities, arranged so as to form a pattern ; 

 there are altogether about fifty rows (of very different 

 lengths) of these curious processes* 



The rectal-cauda is large, and extends nearly to the 

 floor of the segment ; it is in greater part corneous, but 

 has a large sharply defined membranous patch at the 

 extremity. The theca and oedeagus I cannot see. The 

 lateral appendages are of peculiar form, and are seen, 

 one on each side, as abruptly bent books, projecting 

 towards the cauda ; each hook bears on its basal part a 

 patch of pubescence. The inferior process is a sharply 

 defined carina, depressed in the middle, extending all 

 across the floor of the segment, below the orifice of the 

 Cauda. 



23. CallipJiara ohscura, Hope (subfam. Scutellerime). 

 Hab. N. Borneo ?. Fig. 25, PL XIV.— The floor of the 

 terminal chamber is much produced posteriorly, and at the 

 truncate apical angle on each side there is a large patch 

 of peculiar scales similar to those mentioned in C. 

 ornatus, though so difterent in their position. The 

 rectal-cauda is large, laterally subcompressed, and sub- 

 carinate along the middle. The lateral appendage is a 

 large horn-like process, much curved outwards, with 

 dilated base. The inferior process can scarcely be dis- 

 tinguished. 



24. Pcccilochroma lata (subfam. Scutellerince). Hab. 

 Assam. Figs. 21, 22, 22a, 22 6, PL XIV.— In this species 

 the rectal-cauda is less deveolped than it is in any other 

 PentatomincE I have examined, and appears merely as a 

 small rounded process of a reddish colour pendent from 

 the upper part of the terminal segment. There is appa- 

 rently no theca, and owing to this fact, and to the small 

 size of the cauda, the cedeagus is exposed; as seen 



''•'• Comb-like processes similar to these are fomidon the accessory 

 male ogans of some BtapliylinidcE, where the male characters are 

 very extremely developed, as in Flociopterus, for example. 



