3A 
lf~nn 
666 . 
ARGUTOR LONGICOLLIS. 
Oiider Coleoptera. Fam. Carabidae. 
Type of the Genus, Carabus vernalis Fab. 
Argutor Meg., Dej., Curt. — Feronia Dej. — Platysma Stur . — ■ 
Harpalus Gyl. — Carabus Fab. Duft. 
Antennae inserted before the eyes, longer than the head and 
thorax, a little thickened and compressed at the apex, 1 1 -jointed, 
basal joint ovate, 2nd small slender and obovate, 3rd as long as 
the 1st but slender, the remainder pubescent and gradually de- 
creasing in length, the apical joint elongate -ovate (6). 
Labrum subquadrate, rather broadest at the base, anterior mar- 
gin slightly concave, with a few long bristles, the angles rounded 
and ciliated (1). 
Mandibles elongate-trigonate, curved, acute, one with a small 
tooth near the middle of the inner margin (2), both notched at 
the base. 
Maxillae terminating in a curved acute horny claw, ciliated in- 
ternally. Palpi, internal short, composed of 2 slender joints of 
equal length, basal one clavate, the other curved, sublunate : 
external long stout and 4-jointed, basal joint minute, 2nd long 
and stout, 3rd as long as the 2nd, clavate, very slender at the 
base, 4th rather shorter, fusiform-truncate (3). 
Mentum transverse, deeply excavated, the centre produced and 
emarginate, the sides forming 2 large lobes (4). Palpi long and 
triarticulate, attached to large scapes, basal joint minute, 2nd 
and 3rd long and slender, of equal length, the former subcy- 
lindric, with 2 long hairs on the inside, the latter fusiform with 
a gland at the apex. Labium oblong, the anterior angles un- 
cinated, the centre horny and furnished with 2 bristles. 
Head ovate ; eyes small and lateral. Thorax subcor date -quadrate, 
concave before, base straight, the angles acute : scutel small and tri- 
gonate. Elytra elongate-ovate, depressed, apex rounded, scarcely 
emarginated : wings ample. Legs moderate : thighs short and stout, 
the anterior sometimes incrassated in the males (5).- tibiae spurred, 
anterior the stoutest and notched internally : tarsi slender, 5- jointed , 
4 basal joints obcordate in the anterior, the first 3 dilated in the 
males (5), apical joint clavate and slender as well as the claws . 
Longicollis Dvft.? — Curt. Guide, Gen. 55. 7. 
Castaneous, sometimes inclining to piceous ; antennae palpi and 
legs ferruginous ; thorax quadrate-cordate with a deep channel 
down the back, base only slightly punctured, except at the 
angles which are acute, a fovea on each side the centre forming 
a longish groove : elytra rather narrow with 8 punctured striae 
on each. 
In the Cabinets of Mr. R. H. Spence and the Author. 
This group makes so near an approach to Omaseus (fol.15), 
that they are merged in the genus Feronia by the Baron De- 
