terminal segment in some male Hemiptera. 409 



raised carina placed quite underneath the apex of the 

 rectal-cauda. The oedeagus I am unable to see. 



The most remarkable peculiarity in this insect is that 

 the floor of the terminal chamber is divided at the 

 bottom very far forwards, so that by a very slight pro- 

 jection of the rectal-cauda excrementitious matter is 

 ejected outside the organism. 



14. Cappceataprohanensis (subfam. Pentatomina:) . Hab. 

 Assam. — In this curiously coloured species the terminal 

 segment is of smaller size than usual, and the lateral 

 appendages are so deeply placed that I am not able to 

 describe their form, to do which a special dissection 

 would be necessary. The floor of the terminal chamber 

 is deeply divided in the middle as far as the extremity of 

 the rectal-cauda. This is narrower towards the apex, 

 without sculpture, and overlaps the inferior process, 

 which is therefore concealed by it. Though the species 

 resembles Dalpada ondata in having the floor of the 

 terminal chamber divided deeply, to allow' the deposition 

 of the excrement outside the segment, yet in the lateral 

 appendages the two appear to be entirely different. 



15. Stilida indecora, Stal (subfam. ?). Hab. Queens- 

 land. Figs. 5, 5a, 5b, PI. XII. — The rectal-cauda is 

 quite short, not deflexed, and the posterior part of its 

 upper surface has a triangular area that is roughly 

 punctured and pubescent. The oedeagus is quite con- 

 cealed, but, on cutting off the rectal-cauda, it is seen to 

 be very large, completely filling up the theca in which it 

 is placed, and having the appearance of being a densely- 

 packed bundle of corrugated membrane which has a 

 groove in its posterior aspect, and in this there is placed 

 a free, slender, slightly curved, chitinous ligula. The 

 theca is smooth and polished. The lateral appendages 

 are small, are placed very close to the rectal-cauda, and 

 project backwards behind it as two slender, elongate, 

 curved processes, whose apices just meet in the mesial 

 line. The inferior process is almost entirely concealed 

 by the rectal-cauda, but wlien this latter part is removed 

 the inferior process is seen to be a rather slender, elon- 

 gate ligula, placed immediately behind the theca, pro- 

 jecting backwards and upwards, quite smooth and 

 polished, except a smooth portion at the tip, which is 

 depressed and roughly sculptured. 



