terminal segment in some male Hemij^tcra. 411 



are difficult to see, and are not quite correctly rendered 

 in the figure. The cauda has an angular incrassation 

 on each side (though not so represented in fig. 13), and 

 the ajjices of the lateral appendages project, one on each 

 side, as an obtuse rounded lobe ; in the middle of the 

 lip there is a small angular excision. 



20. Catacanthus incarnatus, Drury (subfam. Pentato- 

 mincB). Hab. E. India. Fig. 20, PI. XIII. — Of this 

 very beautiful bug I have only one male example 

 at my disposal, and the arrangement of the parts of 

 the genital segment is so complex and peculiar that 

 these cannot be explained satisfactoril}^ without breaking 

 up a specimen. The lip of the segment is very deeply 

 divided ; the cauda appears to be short, and to bear 

 a ciliate ovate ornament ; the lateral appendages are 

 very elongate, tusk-like processes, and there is a large 

 superior lateral process on each side. In addition to 

 this there are some peculiar complicated objects pro- 

 jecting from within, or from beneath the cauda, and 

 these I cannot at present reconcile with anything I have 

 seen in other species. 



21. CantaQ ocellata {^Vi\)i'Mi\. ScutelUrincE). Hab. Hima- 

 laya. — The terminal segment is completely covered by 

 the scutellum, and the tips of the wings project back- 

 wards beyond it. On extracting the segment it is seen 

 that the rectal-cauda is moderately long, and is partly 

 coloured black and yellow, and is hairy ; it is closed at 

 the extremity by a valvular membrane, at the base it is 

 somewhat constricted, and is embraced on each side by 

 the diaphragm, which is horizontal in its direction and 

 emarginate for the reception of the base of the cauda, 

 and emits forwards on each side a small, curved, corneous 

 process closely applied to the cauda. On lifting the 

 cauda the large theca is seen ; it is transversely striate : 

 the oedeagus cannot be seen. The inferior process forms 

 a large inverted arch, which can be seen on the floor of 

 the chamber below the cauda. The lateral appendage is 

 seen on each side of the cauda as a small polished 

 rounded process, whose extremity scarcely extends back- 

 wards at all beyond the diaphragm, which, as already 

 stated, forms here a horizontal roof. 



