7 ^ 
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266 . 
GEOTRUPES LyEVIS. 
The smooth Dor, or Clock-beetle. 
Order Coleoptera. Fam. Geotrupidae Lat ., Leaclu 
Type of the Genus y Scarabaeus stercorarius Linn. 
Geotrupes Lat., Leach, Sam . — Scarabaeus Linn., Fab., Oliv., Gyll., 
Panz. 
Antennce inserted close to the eyes, under the nasus, capitate, 
11 -jointed, basal joint very long, triangular and pilose, 2nd 
globose, 3rd longer, 4th subquadrate, 5th a little longer, 3 fol- 
lowing transverse cup-shaped, the remainder forming an oval 
lamellated velvety club, the basal joint only horny beneath (6). 
Labrum prominent, pocket-shaped, rugose and pilose above, 
coriaceous and pubescent at the margin and beneath (1). 
Mandibles corneous, porrected, long bent, emarginate at the apex, 
the internal margin coriaceous and very pubescent (2). 
Maxilla with the stalk long and corneous, terminated by a round 
fleshy lobe, hairy like a brush at the side, with a similar but 
smaller lobe on the inside. Palpi short, cylindric, nearly naked, 
4-jointed, basal joint minute, 2nd scarcely so long as the 3rd, 
which is of equal length with the 4th (3). 
Mentum corneous, very pilose and deeply emarginate. Palpi 
remote, attached to scapes at the extremity of each lobe of the 
mentum, composed of 3 nearly equal joints, the 1st and 2nd 
clavate and pilose, the former on the inside only, 3rd joint sub- 
cylindric-truncate. Lip thick, coriaceous bilobed and very pu- 
bescent at the margins (4). 
Head triangular. Nasus rhomboidal. Eyes small lateral, divided by 
the margin of the head, and touching the Thorax which is broad con- 
vex and smooth. Scutellum rather large and triangular. Elytra 
oval. Wings ample. Legs very strong. Thighs short, the posterior 
sometimes spined. Tibiae curved spined at the apex, the anterior 
dentated externally, the others notched. Tarsi b -jointed, the basal 
joint nearly concealed in the anterior pair. Claws bent (5 a fore 
leg). 
Laivis Haw. Ent. Trans, p. 79. 
Very smooth, shining, black or violaceous. Antennae with the 
club black, the terminal lamina sometimes ferruginous. Head 
rugose. Thorax thickly punctured, with a fovea on each side. 
Elytra with several faintly punctured striae. The body beneath 
pubescent, sometimes inclining to green. Legs hairy, the pos- 
terior thighs serrated at the inner margin. Claws castaneous. 
In the Author’s and other Cabinets. 
