7-;23o 
322 . 
CAFIUS FUCICOLA. 
Order Coleoptera. Fam. Staphylinidae Lat Leach . 
Type of the Genus , Staphylinus xantholoma Grav. 
Cafius Leach MSS., Sam., Curt.-— Staphylinus Grav. 
Antennae inserted considerably before the eyes, remote, as long 
as the thorax, nearly straight, pilose and pubescent except at 
the base 5 11 -jointed, basal joint long, incrassated towards the 
apex, 2nd forming a slight angle with the 1st j scarcely so long 
as the 3rd which is subpyriform, the remainder moniliform, the 
apical joint ovate (6). 
Labrum large, broad, semiovate and deeply notched in front, 
base corneous, the centre coriaceous, producing a series of spiny 
bristles and a membranous ciliated margin (1). 
Mandibles very distinct, rather slender and acute, furnished with 
2 teeth on the inside above the middle, below which is a mem- 
brane densely clothed with hairs (2). 
Maxillae rather large with an internal lobe densely clothed with 
long pubescence, the external one articulated and equally pu- 
bescent. Palpi rather lopg and robust, 4 -jointed, the apex of 
all the joints pellucid, basal joint the slenderest, shortest, and 
curved, 2nd and 3rd of equal size, robust and pyriform, the 
latter having a few bristles round the top, 4th as long elongate- 
ovate, terminated by a vesicle (3). 
Mentum transverse, very short, broadest at its base. Labium 
large subquadrate at its base and fleshy, then becoming cordate 
and forming two divaricating lobes ciliated with long hairs. 
Palpi rather long, attached to 2 large scapes arising from the 
middle of the labium, 4-articulate, basal joint minute, 2nd and 
3rd pellucid at the apex, the former subpyriform, the latter 
ovate, 4th longer and more slender, terminated by a vesicle (4). 
Depressed. Head ovate-oblong, neck distinct. Eyes small, lateral, 
not at all prominent. Thorax not broader than the head, oblong- 
ovate, the angles being rounded. Scutellum triangular. Elytra half 
the length of the body and broader than the thorax, quadrate. Wings 
as long as the Abdomen which is as broad as the thorax, the sides 
elevated, the apex furnished with bristles. Legs rather short. Coxae; 
anterior as long as the thighs. Tibiae rather shorter, spirted, espe- 
cially the anterior and producing several spines at the apex. Tarsi 
5-; jointed , anterior pair dilated and very pilose in both sexes, 3 first 
joints somewhat cordate or trigonate, 4th slightly bilobed, bth the 
longest, clavate (5, a fore leg ) : in the other feet the basal joint of 
the tarsi is as long as the terminal one. 
Fucicola Leach MSS. — fuscicolor, Curtis's Guide, Genus 197. n. 1. 
In the Cabinets of the British Museum and the Author. 
