— 449 — 



Corium in maie reaching or some- 

 what passing" base of ultimate con- 

 uexival segment. 



Membrane in female barely reach- 

 ing base of dorsal génital segment. 



Maie génital segment seen from 

 the side obtusangnlar, obliquel}- as- 

 cending from the base to near the 

 middle, then perpendicularl}' ascend- 

 ing to the depressed apical margin 

 which, seen from behind, is entire, 

 uninterrupted, and moderately ar- 

 cuatelysinuatebetween the produced 

 latero-apical angles. 



infuscated, last two joints blackish, 

 fourth often tinged with testaceous 

 at base; second joint much longer 

 ("/, to ^/3, or somewhat less) than 

 third. 



Corium in both sexes passing 

 middle, but not reaching apex of 

 penultimate connexival segment. 



^lembrane in both sexes almost 

 reaching apex of abdomen, or in the 

 female at least reaching middle of 

 dorsal génital segment. - 



^lale génital segment protruding 

 in a large médian transverse tubercle, 

 visible even from above ; the tubercle 

 excavated above and subtruncately 

 sinuate at apex; the depressed apical 

 margin of the segment seen from 

 behind interrupted in the middle, 

 being obliquely straight on each side 

 from the base of the conically pro- 

 duced latero-apical angles to near the 

 middle, then suddenly turned do'mi- 

 wards, forming a short parallel per- 

 pendicular furrow. 



Nvasaland (between Fort Mangoche and Chikala Borna, about 

 4,000 ft., S. A. Neave). 



D. plana was described from Guinea, where it bas been found 

 in manv places. I bave it from Dabomey, from Eastern Stidan 

 (Sobat on tbe Wbite Nile), and from Congo. Oi D. cou fusa I bave 

 seen only the two spécimens found by Mr. Neave, but tbere can 

 be little doubt that it bas been confused witb plana in some col- 

 lections, and the spécimens oi plana recorded from South Africa 

 mav possiblv belong to confiisa. The colour of the antennae,. the 

 mutual length of their second and third joints, and the length of 

 tbe bemelvtra are variable to some extent in some Pentatomidae, 

 and spécimens of D. plana and confusa mav be found in which the 

 differential characters of the antennae and hemelytra, as given 

 above, are less obvions, but maie spécimens of the two species are 



