234 
IIEMBIl A C1T)JE. 
Genus : LEPTOCENTRUS Stal. 
Hemip. Afr. iv. pp. 87, 90. E. T. Atkinson, Notes on Indian Rhynchota, Journ. of the Asiatic 
Soc. of Bengal, vol. liv. p. 85. 
This genus was separated from Centrotus proper by Stal, and is thus described b}^ 
him. The posterior horn neither tenuated below, nor amplified in the middle. 
Acute, three-cornered, distant from the scutellum, and free from the abdomen. 
Tegmina with five apical and two discoidal areas, none of which are petiolated. The 
tibiae simple. 
W. F. Kirby notes nineteen species as represented in the British Museum. The 
type seems to be Centrotus bos of Sign. Arch. Ent. ii. p. 33G (1858) with the 
synonym Centrotus altifrons, Walk. l.c. p. 608. 
LEPTOCENTRUS BOS, Sign. 
Centrotus altifrons , Walk. l.c. p. 008. 
Black, punctured, clothed with tawny hairs. Metopidium rising vertically from the 
head. Suprahumerals rather small, prismatic, divergent and recurved. Posterior 
horn very slender, and curved downwards ; abdomen grey above. Tegmina pale. 
Size, 7 x 8 mm. 
Habitat. —Congo, Calabar. 
LEPTOCENTRUS CANESCENS, n.s. 
(Plate LIII. fig. I.) 
Dull brown. Suprahumerals slender, acute and slightly recurved. Posterior 
horn sharp, slender, and disengaged from the scutellum. The front of the metopidium 
grey, covered by a dense and fine pilose coat, which extends partly down the dorsum 
and under the tegmina. Legs rather slender and not dilated. Tegmina brownish- 
hyaline. 
Size, 9x4 mm. 
Habitat. —Belize, Honduras. 
LEPTOCENTRUS IMITATOR, n.s. 
(Plate LIII. figs. 2, 2a.) 
In general form not unlike the last-named insect, but smaller, and the tegmina 
more rounded at their apices. A broad white patch encircles the base of the long 
posterior horn, and extends over the metopidium and the underside of the thorax. 
There is a dark arched streak which connects the two eyes. Legs brown. The 
* From \emov and Ktvrpov, slender horned. 
