Famtty—CETONIIDA., Sus-Famiry—CREMASTOCHEILIDES. 49 
Species 2 (72)—GENUCHUS ELONGATULUS. 
Puate X, Fie. 1. 
Oblongus, fusco-niger nitidus, valde punctatus; vertice bituberculato (fig. 1a); antennis rufis; clypeo 
antice parum reflexo; prothorace rotundato, latitudine longitudinem paullo excedente, linea impressa media 
longitudinali sulcisque duobus brevibus ante medium disci impresso ; elytris oblongis parallelis striatis et forte 
punctatis; scapulis, pleuris, elytrorumque tuberculis apicalibus albido-tomentosis ; mento transverse striolato, basin 
maxillarum haud tegenti (fig. 14); tibiis anticis obtuse tridentatis. 
Long. corp. lin, 5. 
Habitat ; Cape of Good Hope (Gory et Perch.), Senegambia (Burmeister, an recte ?). 
Syy.: Genuchus elongatulus. Gory et Perch, Mon, Cet. p. 116, pl. XVI, fig. 4; Burmeister, Handb. iii. p. 669, 
and p. 829 (C. elongatus) ; Schaum, Germar Zeitschr. iii. p. 267. 
This species is rather narrower than G. ottentottus, differing from it im the bituberculated vertex, the 
less elevated fore margin of the clypeus, and the longitudinally channelled pronotum. 
Spxcres 3 (73)—GENUCHUS NIGRICLAVIS. 
Prats X, Fic. 3. 
Niger, nitidissimus ; elongatus, subparallelus; rude irregulariter punctatus: capitis facie transverse late 
impressa, marginis antici angulis lateralibus prominulis, medio in cornu obtuso elevato, marginis postici carinam 
inter oculos formante; prothorace antice subdeclivi, linea longitudinali media impressa notato et utrinque 
parum impresso; elytris longitudinaliter sulcatis et striatis, singulo in medio maeula parva ovali lunulaque 
apicali albidis signato. 
Long. corp. lin. 6; lat. elytr. lin. 24. 
Habitat; Port Natal et Caffraria, regio fluvii Gariepis. In Mus. Brit. et D. Parry. 
Syv.: Genuchus nigriclavis. Westw. MS; Schaum, Verz. Lam. Melit. p. 63; Boheman, Ins. Caffr. pars ii. p. 51. 
The head is about half the width of the centre of the prothorax; itis closely punctured ; the middle of the 
face between the eyes is moderately transversely impressed, the anterior margin of the impression being sub- 
tridentate, the lateral angles are rather prominent, whilst the centre is more triangularly porrected into an 
obtuse tooth, the upper or posterior margin of the impression forming a slightly prominent transverse ridge. 
From the central tooth to the anterior margin of the clypeus the latter is longitudinally elevated, but not 
acutely ridged (fig. 3.2, head seen from the front), The antennx are entirely black. The maxille (fig. 34) are 
armed with a strong curved apical tooth, and the lower lobe is terminated by a shorter irregular tooth. The 
mentum, seen from beneath, is urn-shaped, and very convex (fig. 3c); the lower extremity terminating in a 
prominent obtuse deflexed lobe (fig. 3d, seen sideways). The prothorax is large, rather shorter than wide, with 
the anterior and posterior angles rounded off, the anterior portion slightly narrower than the hinder; the middle 
of the anterior margin is slightly obliquely truncate, and there is a rather deep longitudinal impression down 
the middle of the prothorax ; the upper surface of which is finely polished and irregularly impressed with deep 
moderate-sized punctures. The anterior margin of the prosternum is armed with a strong compressed spine. 
The elytra are oblong, with the shoulders prominent (having a slight impression within each shoulder), and the 
sutural portion towards the base being depressed ; between the suture and the middle of the disc each elytron is 
marked with five fine strie, formed of confluent punctures, with an oval whitish spot between the fourth and 
fifth of these strie on each elytron near the middle; the space between the second and third striz (counting 
from the suture) is longitudinally elevated into a carina, and the apex of each elytron is marked with a whitish 
lunule. The legs are short and strong, the anterior tibie being armed on the outer edge with three small equi- 
distant teeth. The four hind tibie are armed with a small central spine. The body beneath is black and 
glossy, and marked with widely scattered punctures. In the male specimen delineated, the basal segments of 
the abdomen have a central depression. The pygidium is sometimes marked with two whitish spots. 
