48 Orprr—COLEOPTERA. Sectilon—PENTAMERA. 
sideways ; and 6 /, the anterior truncated and concave extremity of the mentum seen from the front). The prothorax 
is nearly circular, convex, with sharp lateral margins, very finely and closely punctured, the widest portion being 
across the centre, the hind margin being only as wide as the anterior, the posterior margins rounded off, and the 
hind margin nearly straight; on the dise is a straight longitudinal impressed line down the middle. The 
scutellum is marked with small cicatricose punctures, some portions in the centre being left plain. The elytra 
are about twice the length of the prothorax, and about one-third wider; they have several slight cost on the 
dise, and two striw, formed of concatenated cicatricose punctures (fig. 67, central part of elytron) ; they are 
covered with small semi-oval punctures. The pygidium is convex, and delicately granulose ; the three posterior 
pairs of spiracles are prominent, especially the last pair. The legs are short and thick ; the tarsi thick at the 
base, and gradually becoming more slender to the tips; the anterior tibie are obtusely bidentate at the tips, the 
posterior having a slight angular production in the middle of the outer edge (fig..6y, anterior foot; 64, hind 
foot). The abdomen is convex. 
Genus 20—GENUCHUS. Kirby. 
(Trans. Linn. Soc. xiv. p. 569.) 
Corpus oblongum, subdepressum. Clypeus deflexus, apice reflexo emarginato; vertex fovea magna im- 
pressus. Maville mediocres; galea longa curvata falciformi, apice acuto integro; mandonis apice in dentem 
minorem apice etiam acuto integro. Mentum (labium, K.) quasi pedunculo elevatum, elongato-subtriangulare 
angulis rotundatis ; cum clypeo os exactissime claudens, disco postico in cornu obtuso oblique deflexo sub jugulum 
dependente, producto ; palpis lateraliter insertis, vix ultra marginem anticum menti extensis. Antenne articulo 
primo magno incrassato arcuato. Prothorax subrotundus antice emarginatus. Prosternum ante coxas anticas 
spina parva armatum. Mesosternum inter pedes intermedios parvum mucronatum. Elytra oblonga parallela. 
Tibie antice extus 3-dentatz, postice in medio extus spina armate. Tarsi 5-articulati. 
The species of this genus are small in size, oblong, depressed, with the sides of the elytra parallel. They 
are natives of Africa, and the typical species is subject to considerable variation in the colour of the prothorax 
and elytra, which are either entirely black or variously marked with red spots. 
Spxcres 1 (71)—GENUCHUS HOTTENTOTTUS. 
Angustus, niger nitidus; supra aciculato-striolatus ; clypeo brevi sinuato, antice reflexo; vertice integro 
inermi; prothorace rotundato diseo sublevi haud canaliculato; scapulis pleuris elytrorumque tuberculis 
apicalibus fasciculato-pilosis ; elytris apice rotundatis ; pygidio convexo, transverse carinato, guttis duabus fulvis 
transversis notato. 
Long. corp. lin. 4. 
Habitat ; Cape of Good Hope. In Mus. Hopeiano Oxoniz, &e. 
Syy.: Cetonia hottentotta. Fabricius, Syst. Ent. p. 52; Syst. Eleuth. ii. p. 159; Ent. Syst. t. ii. 153, 96 ; Gory et 
Perch. Mon. Cet. p. 14, pl. XVI, fig. 1 ; Olivier, Ent. i. 6, p. 56, pl. VII, fig. 55; Burmeister, Handb. iii. 
p- 668; Schaum, Ann. Soc. Ent. France, 1845, p. 53- 
Var.: Genuchus eruentus. Fabricius, Mant. Inst. i. p. 32; Gory et Perch. Mon. Cet. p. 15, pl. XVI, fig. 3; Olivier, 
Ent. i. 6, p. 57, pl. VII, fig. 58, et var. pl. VI, fig. 37; Schaum, Germar Zeitschr. iii. p. 266; Schén- 
herr, Syn. Ins. iii. 143, 158. 
Capite pronoto, elytris et corpore subtus nigris nitidis, prothorace maculis duabus lateralibus 
posticis, plagisque duabus curvatis in medio elytrorum abdomineque supra sanguineis. 
Habitat ; Senegal (Gory et Perch.). 
Var. : Genuchus sanguinolentus. MacLeay, Ill. Zool. 8. Afr. iii. p. 18. 
Niger, pronoti maculis duabus posticis, elytris pygidioque toto sanguineis. 
Habitat ; Cape of Good Hope. 
