3-JtAi 
108 . 
PiEDERUS FUSCIPES. 
Order Coleoptera. Fam. Staphylinidae Lat.> LeacJi. 
Type of the Genus Staphylinus riparius Linn. 
PiEDERUS Fab., Oliv., Payk ., Grav., Gyl ., Leach . Staphylinus Linn ., 
Fab., De Geer , Marsh. 
Antenna inserted before the eyes, at the base of the mandibles, 
sub-clavate, pubescent and pilose, 11 -jointed, 1st joint rather 
robust, 2nd short, 3rd as long as the first but more slender, the 
remainder shorter, insensibly thickening towards the extremity, 
the 4 last joints being pedicled and the terminal one conic and 
obliquely truncated (f. 6). 
Labrum transverse, exserted, pilose, narrowed before, and deeply 
emarginate (1). 
Mandibles transverse when at rest, large, curved, acute, dilated 
in the middle and at the base, with a bifid tooth on the internal 
edge (2). _ 
Maxilla with 2 membranaceous lobes, internal one rather large, 
ciliated, external terminated by a dense and long ciliation. Palpi 
long, 4-jointed, 1st joint small, 2nd long clavate, 3rd very large 
and hairy, clavate, truncate, 4th short, nearly concealed (3). 
Mentum transverse, broadest at the base. Palpi 3 -join ted, basal 
joint short clavate, 2nd robust, sub-ovate, 3rd slender, linear 
truncate. Lip broad, emarginate (4). 
Head large, sub-ovate. Eyes small. Neck distinct. Thorax ohovate. 
Scutellum minute. Wings 2. Elytra quadrate, not covering half 
the abdomen, which is convex, the penultimate joint being much longer 
than the others ; terminated by 2 styles in the female (11). Tibiae 
simple. Tarsi 5 -jointed, anterior dilated in the males , 4th joint bi - 
lobed. Claws simple (5, a fore leg). 
Fuscipes Nobis. 
Shining, pilose. Head smooth, black. Antennae black, ochra- 
ceous at their base. Mandibles and palpi ochraceous, the latter 
black at the apex. Neck and thorax rufous, with a few punc- 
tures from which arise strong hairs. Scutellum obscure. Elytra 
dark green, coarsely punctured, somewhat pubescent. Abdomen 
rufous, the 2 terminal joints black, sparingly punctured towards 
the extremity. Coxae and thighs ochraceous, the latter black at 
their apex. Tibiae brown, darkest at the base. Tarsi piceous. 
In the Cabinets of Mr. Chant, Mr. Bentley, and the Author. 
PjEDERUS is distinguished from the species that form the 
group named by Dr. Leach Rugilus (containing P. orbicu- 
