40 Orper—COLEOPTERA. Sectlon—PENTAMERA. 
Specres 10 (55)—CCSNOCHILUS ARMIGER. 
Piate XII, Fie. 2. 
Niger, vix nitidus, punctatissimus; elytris costatis, sutura et costis impunctatis, interstitiis duplicato-striolatis 
et quasi coriaceis, lineis brevissimis aciculatis obtectis; pronoto subrotundato angulis lateralibus posticis vix 
prominulis, tibiis 4 posticis maris caleari longo et crasso reflexo intus armatis ; elytrorum apicibus intus paullo 
angulatis. 
Long. corp. lin. 7; lat. humer. elytr. fere lin. 3. 
Habitat; Zulu, Africa Merid. In Mus. Hopeiano Oxonie et Sheppard. 
The remarkable armature of the four hind legs of the male of this species distinguishes it from every known 
Coleopterous insect. It is black, with a slight castaneous tinge on the elytra, antenne, and body beneath. The 
head is rounded in front, and has a raised ridge between the eyes. The prothorax is nearly circular, the two 
posterior lateral angles being scarcely produced; the lateral margins are slightly deflexed. It has a fine 
central impressed line beyond the middle, and two impressions opposite the sides of the scutellum, which are 
rather deep, wide, and obliquely striolated. The scutellum is punctured at the base, and finely striolated behind. 
Each of the elytra has three elevated costa, which are nearly impunctate, as is also the portion of each adjoining 
the suture, the apex of which is slightly acuminated. The intervening spaces of the elytra have a coriaceous 
appearance from being covered with an infinite number of minute aciculated lines close together. The antenne 
(fig. 2a) have the third, fourth, and fifth joints marked with fine longitudinal lines on the upper side, whilst 
they are smooth on the under side. The mentum is oblong, being twice as long as broad, slightly dilated at 
the sides behind the middle; the fore margin emarginate in the middle, and with the anterior lateral angles 
rounded off. The fore tibize in the male are dilated at the outer extremity, where they are notched so as to 
form two obtuse teeth ; the four posterior tibia are furnished at the extremity on the under side with a long, 
obtuse, slightly curved spine, which is directed backwards, the two ordinary apical spurs being of the usual 
small size. The abdomen of the male has the second, third, fourth, and fifth segments marked with an oval 
shallow impression, and the podex is vertical and not convex, and covered with fine aciculated transverse lines 
(fig. 24, seen from behind); the two posterior spiracles not being greatly enlarged. The tarsi are flat and 
rather broad, with short straight ungues. The epimera and sides of the metasternum are clothed with greyish 
luteous hairs. 
Species 11 (56)—CCZNOCHILUS NILOTICUS. 
PuatE XII, Fie. 11. 
Niger, subnitidus, punctatissimus ; capite inter partem anticam oculorum biimpresso; prothorace fere cir- 
culari, linea tenui media longitudinali et impressionibus duabus ovalibus ante scutellum notato ; elytris costatis, 
interstitiis longitudinaliter duplicato-striolatis ; pedibus posticis inermibus ; antennis et capite subtus piceis. 
Long. corp. lin. 63; lat. humer. elytr. lin. 23. 
Habitat ; ad Nilum album, Africe tropic. In Mus. D. Sheppard. 
This species might at first sight appear identical with C. armiger, but the simple feet and some other 
characters at once distinguish them from each other. The upper surface is black and glossy; the head and 
thorax is thickly covered with small round punctures; the elypeus is dilated on each side, in front of the 
insertion of the antenne ; there are two nearly rounded impressions between the anterior part of the eyes, and 
a line between their middle part. The mentum (fig. 11 @) is oblong, not much longer than wide, with the fore 
margin emarginate in the middle, and the anterior lateral angles rounded off. The prothorax is nearly circular, 
the greatest width being a little behind the middle; the hinder lateral angles are rounded off, and the hind 
margin in front of the scutellum is very slightly emarginate. The lateral margins are reflexed; the central 
longitudinal impressed line does not extend either to the anterior or posterior margin, and there is an oval 
impression on each side opposite the anterior angles of the scutellum, which are marked with oblique striole ; 
the elytra have three raised coste, which, as well as the sides of the suture, are punctured, the interstices being 
filled with very fine aciculated punctures, which towards the base are more cicatricose. The podex is convex, 
preceded on the under side (fig. 114, 11 ¢, seen sideways) by a short joint, which has its hinder margin a little 
produced in the middle, followed by the deep open anal impression. The under surface of the abdomen of the 
male has the second, third, fourth, and fifth segments with a broadly oval depression in the middle. 
