28 Orper—COLEOPTERA. Srectlon—PENTAMERA. 
Cl. scabrosa Motsch. ‘J’ai donné une diagnose de cette insecte que j’avais placé dans le genre Cremasto- 
cheilus dans la seconde année de ces Etudes, p. 47. Depuis ayant eu l’occasion de me procurer des exemplaires plus 
compléts, je me suis assuré qwil n’appartient guére a ce genre, par plusieurs caractéres trés remarquables, tels 
que; wa menton plane et non concave, élargi antérieurement et rebordé: par wn corselet a angles fortement 
arrondis, et enfin, par des farses postériewres composées seulement de quatre articles visibles, vu que le tier est 
obliteré et entiérement soudé au second, n’étant représenté que par un renflement globuliforme assez insignificant, 
a la base de ce dernier, parfaitement caché dans la cavité de la jambe. Cette Cétonide est done hétéromére. 
Genus 14—CENTROGNATHUS. 
(Guérin-Méneville, Rey. Zool. 1840, p. 79; Schaum, Germar Zeitschr. ili. 267.) 
Corpus latum crassum. Caput parvum. Clypeus apice subsinuato margine reflexo et in cornu clavatum 
elevato; lateribus supra basin antennarum auriculatis (fig. 4.@, caput e latere visum). Antenne articulo basali 
parvo. Mandibule parte externa cornea brevi extus rotundata apice acuto, vix partem internam membranaceam 
ambiente (fig. 44). Maxille parve galea uncinata apice acuto integro; mandonis dente apicali curvato apice 
fisso (fig. 4c). Mentum oblongum subparallelum, in medio disci angulatum, parte antica oblique truncata, 
margineque antico fere recto (fig. 4d@). Prosternum inerme, nec ante coxas anticas spina armatum. Meso- 
sternum obtusum hand porrectum. Abdomen in mare basi late canaliculatum. Tibi antice basi crass 
extus bidentate (fig. 4). 
The genus is here eonfined to the single species first described by Guérin-Méneville as its type, and which 
differs from the allied species, with which I have formed the Genus Spilophorus (which Burmeister united with 
it) in the remarkable structure of the head and legs. In its cibarian characters it more nearly agrees with them. 
Species 1 (45)—CENTROGNATHUS SUBRUGOSUS. 
Puiate IX, Fie. 4. 
Niger opacus, subrugosus, capite supra excavato, utrinque cornu erecto, intus recurvo, armato clypeoque in 
cornu elevatum producto; elytris basi thorace paullo latioribus, parallelis supra planis; pedibus brevibus 
crassis ; tibiis anticis dente vix conspicuo extus instructis; tarsis brevibus cylindricis crassis, unguibus longis. 
Long. corp. lin. 93; lat. humer. elytr. fere lin. 5. 
Habitat; Malacea. In Mus. Parry (olim Guerini). 
Syy.: Centrognathus subrugosus, Guérin-Méneyille, Rey. Zool. 1840, p. 80.; Voy, de Delessert, pl. II, fig. 3 ; 
Schaum, Germar Zeitschr. iii. p. 267. 
I have hitherto only seen a single specimen of this curious species, now in Major Parry’s collection. The 
lateral margins of the head are raised into two auriculated processes, and the front of the clypeus is raised into 
an erect subtruncated horn (fig. 4.2, head seen sideways). The mandibles (44) are pointed at the tip, with a 
setose membranous lobe on the inner margin, of which the base is not much produced ; the galea of the maxille 
(fig. 4c) is acute, and the mando bidentate. The mentum is oblong, straight in front, and rather constricted in 
3? 
the middle on each side (fig.47). The legs are very short and thick (fig. 4e, the anterior tibia and tarsus), 
the latter being 5-jomted. The frontal horn is polished in front. The prosternum is entirely simple, and not in 
the least prominent, nor with a deflexed point in front of the anterior cox. The podex is semicircular, with a 
very slight longitudinal central carina. 
Genus 15—SPILOPHORUS. Westw. MS. 
(Centrognathus (pars), Burmeister, Handb. iii. p. 652; Lacordaire, Gen. IIT.1856, p. 545-) 
Corpus latum crassum, ut in Cetoniis plurimis, glabrum, nitidum, supra eretoso-maculatum. Caput 
parvum ; elypei margine antico curvato parum elevato. Antennarum articulus basalis parvus. Mandibulz parte 
externa cornea elongata et recte producta, apice subacuto. Maxille galea curvata apice integro. Mando 
dente apicali minori apice oblique et ineequaliter bifido (pl. IX, fig. 62). Mentum oblongum basi parum angustiori 
