160 . 
CRYPTOPHAGUS POPULI. 
Order Coleoptera. Fam. Silphidse Leach . Necrophagi Lat» 
Type of the Genus Cryptophagus Populi Gyll. 
Cryptophagus Herhst., Payk., Gyll., Leach . — Ips Oliv., Lat. — Cor- 
ticaria Marsh . — Dermestes Linn., Fob., Panz. 
Antennce not very distant, robust, very pilose, punctured 5 in- 
serted before the eyes, being attached by a posterior angle of the 
basal joint which is large and globose, 2 nd smaller globose, 
3rd the longest clavate, 5 following globose, smaller than the 
2 nd, the remainder farming a club, the 2 first joints cup-shaped, 
3 rd conical (fig. 6 ). 
Labrum small transverse-quadrate, slightly emarginate and ci- 
liated, producing also a few bristles ( 1 ) . 
Mandibles bent, produced externally at the base, the internal 
margin crenated towards the apex, which is bifid, with a notch 
and a bundle of hair lower down ( 2 ). 
Maxillae small bilobed, internal lobe narrow, external broader, 
both thickly clothed with hair at the apex. Palpi short, robust, 
pubescent, 4-jointedj basal joint slender bent, 2nd and 3rd 
cup-shaped, 4th elongate-ovate, terminated by a vesicle (3). 
Mention quadrate at the base, narrowed anteriorly, deeply emar- 
ginate and slightly produced in the centre. Lip coriaceous qua- 
drate, with a dilated membranous ciliated margin. Palpi small, 
inserted upon the lip, 3-jointed, pilose, 1st joint bent, 2nd tri- 
gonate, 3rd elongate-ovate, with a vesicle (4). 
Head trigonate , immersed up to the Eyes, which are remote and small. 
Thorax suborbicular, generally with the sides dentated or crenated. 
Scutellum transverse-ovate. Elytra elongate-ovate. Wings ample. 
Legs small. Tibiae simple, anterior dilated a little at the apex and 
producing a few short bristles. Tarsi simple 5-jointed, terminal joint 
long; the posterior pair in the females ? being only 4 jointed (5f). 
Claws simple. Pulvilli none (5, afore leg). 
Populi Payk. Faun. 3. 355. 4. — Gyll. Ins. Suec. 1. 1. pars 3. p. 165. 
n. 1 . 
Castaneous, shining, punctured, pubescent. Head and antennae 
blackish castaneous, coarsely punctured, producing short ochra- 
ceous pubescence. Eyes black. Thorax suborbicular, convex, 
strongly punctured, clothed with short decumbent pubescence, 
forming a ridge down the middle ; margin narrow, produced at 
the anterior angles and slightly towards the base 5 a slight im- 
pression on each side at the base. Elytra piceous, gradually 
shaded into a castaneous margin, irregularly and minutely punc- 
tured, covered with ochraceous pubescence. Legs clothed with 
ochraceous pubescence. Underside ochraceous. 
Far. (3. entirely ochraceous ; antennae, head and thorax, slightly 
inclining to castaneous. 
In the Author's and other Cabinets . 
