282 INSECTS. COLEOPTERA. 



the first as long as the following; jaws terminated by two 

 membranous lobes ; body hemispherical ; maxillary palpi 

 tumid ; legs spinous. 



Gen. SPH^RIDIUM, Fab. Dermestes, Lin. 

 Antennae with nine joints ; maxillary palpi long, of four joints, 

 the second largest, the last pointed ; thorax transverse. 



This genus is divided by Dr Leach into those with the anterior tarsi dissimilar 

 in the two sexes, Spheridium ; and those with the tarsi alike in both sexes, Cercyon. 



S. scarabceoides, Fab. Shining black ; legs very spinous ; with a 

 red spot at the base of each elytrum, and the extremity yellow. 

 Inhabits Europe, in cow-dung Lat. Gen. ii. 71- 



FAMILY VI. LAMELLICORNES. 



Antennas formed of from eight to eleven joints, but nine or ten 

 in the greater number, inserted in a deep furrow, always short, 

 and terminating in a club, composed of plicated or pectinat- 

 ed laminae, or like the leaves of a book ; external side of the 

 two anterior legs dentated ; chin often large, covering the la- 

 bium. 



TRIBE I. SCARAB.EIDES. 



Club of the antennae composed of laminae opening and shutting 

 like a book, or the first lamina like a cup or horn enveloping 

 the others. 



I. Antennae of eight or nine joints; labrum and mandibles membranaceous, conceal- 

 ed ; jaws terminated by a large membranous arched lobe turned inwards ; last 

 joint of the labial palpi slenderer than the preceding, or very small. 



Copropliagl. 



1. Second pair of feet more widely separated at their origin than the others ; labial 

 palpi very hairy, with the last joint much smaller than the preceding, or scarcely 

 distinct ; scutellum generally none, or scarcely perceptible. 



Gen. ATEUCHUS, (Scardbasus^ Macleay ;) GYMNOPLEURA, SISIPHUS, ONI- 

 TIS, ONITICELLA, ONTHOPHAGUS, PHANEA (LoncJwphorus^ Germ.) Co- 

 PRIS. 



2. All the feet at equal distances ; labial palpi hairy, with cylindrical joints ; scu- 

 tellum distinct ; elytra enveloping the sides and posterior extremity of the abdomen. 



Gen. APHODIUS, PSAMMOBIA. 



II. Antennae generally of from ten to eleven joints; mandibles in the greater num- 

 ber corneous and discovered ; labrum coriaceous and more or less naked ; labial 

 palpi filiform, or terminated by a larger joint ; jaws corneous, terminated by a 

 membranous or coriaceous lobe, but always straight. 



1. Mandibles corneous, but not in the form of thin laminae or scales. 



A. Mandibles and labrum totally or partially naked, projecting beyond the hood ; 

 elytra enveloping the abdomen. 



Antennae of many with eleven joints ; posterior feet placed far backwards. 



Arenicolce. 



a. Labium bifid, its two lobes projecting beyond the chin ; mandibles generally pro- 

 jecting, arched, of eleven or nine joints. 



|j Antennae of nine joints. 

 Gen. CHIRON, 



