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638 . 
QUEDIUS LATERALIS. 
Order Coleoptera. Fam. Staphylinidae. 
Type of the Genus, Staphylinus tristis Grav. 
Quedius Lea., Curt . — Microsaurus Dej . — Staphylinus Linn., Gyll., 
Grav. 
Antennae inserted before the eyes close to the margin of the 
clypeus, remote, a little longer than the head, slightly thick- 
ened towards the apex, pilose, scarcely geniculated, 11 -jointed, 
basal joint the longest and stoutest, 2nd sometimes shorter than 
the 3rd which is elongate-obovate, 4th and 5th obovate, the 
remainder remotely articulated and cup-shaped, apical joint 
elongated, stout oval and acuminated on the inside (6). 
Labrum very broad and short, the anterior margin rounded, not 
notched but ciliated with long bristles above, with fine hairs 
beneath (1). 
Mandibles long, curved, crossing, rather slender, terminating in 
a sharp point, with one or two acute teeth on the inside, be- 
low them is a membranous margin densely ciliated with long 
fine hairs (2). 
Maxillae with a large ovate lobe on the inside densely pube- 
scent, and a smaller sublunate one at the extremity, very pube- 
scent at the apex. Palpi not long, subfiliform and 4-jointed, 
basal joint slender short and curved, 2nd elongated and clavate, 
3rd as stout but rather shorter, 4th scarcely so long, slender 
and attenuated, with a gland at the apex (3). 
Mentum very short and broad, the sides sloped. Lip elongated, 
cordate, dilated at the base, the anterior margin trilobed. Palpi 
inserted near the extremity of the lip, nearly as large as the 
maxillary, slender and triarticulate, first 2 joints obovate, 2nd 
with a few curved hairs on the inside, 3rd twice as long, fusi- 
form, with a gland at the apex (4) . 
Head narrower than the thorax, ovate, neck short : eyes oval, not pro- 
minent. Thorax ovate, truncated before, convex and broadest at the 
base : scutel triangular. Elytra nearly quadrate, not broader than 
the thorax. Wings moderate. Abdomen long, linear, subelliptic, 
with 3 lobes at the apex. * Legs, fore pair very short : coxae, ante- 
rior larger than the thighs which are ovate : tibiae, anterior short 
and stout, the others a little bristly and spurred at the apex : tarsi 
5 -jointed, anterior short, the 4 basal joints cordate, dilated and 
forming an ovate mass densely pilose beneath, 5th joint small: 
claws short (5, a fore leg). 
Larvae with antennae, 6 pectoral and 2 anal feet. Trans. Ent. Soc. 1, 
plS.f.2. 
Lateralis Grav. — Curt. Guide, Gen. 192. 5 a . 
In the Author’s and other Cabinets. 
Although this genus is very like Philonthus , it is readily 
distinguished by its very broad anterior tarsi ; the tibiae also in 
this pair are not bristly, and the spurs are much shorter. It is 
remarkable that the labrum , at least in the typical species, is 
