( 44 ) 
2. P. cmctus^ Rlac6 ; tips of the elytra obscure mfou5, 
Jnhab. U. S. 
Body elongated, black with a slight tinge of piceous, 
. and with discoidal punctures : head obtuse before : anten- 
nx and palpi honey-yelloYv : thorax somewhat smaller 
than the head, a little obovate, obscurely rufous behind : 
elytra obscure rufous at tip : tergum^ posterior margins of 
the segments dull rufous : ^eet pale honey-yellow. 
Length nearly three-twentieths of an inch. 
Resembles the preceding in form and in the obtuse an- 
terior termination of the head. 
RUGILIJS, Leach. 
R. deniatus^ Black; feet pale; elytra . dull rufous at 
tip. 
Inhab. U. S. 
Body piceous black : Aeail longitudinally wrinkled : an- 
tennx^ palpi piceous : labrura large, bidentate in the mid- 
dle, piceous, rounded each side : thorax smaller than the 
head, longitudinally wrinkled, convex, v/ith a longitudin- 
al, glabrous line; elytra with numerous, minute, hairy 
punctures; a subsutural impressed line ; posterior margili 
dull rufous, or yellowish : feet pale yellov/ish. 
Length over three-twentieths of an inch. 
Var. a. Posterior margin nearly black towards the su- 
ture ; glabrous thoracic line almost obsolete. 
Much smaller than E. o.rbiculatus, Payk. and the wrin- 
kles of ' the head and thorax are larger and more obvious. 
STENUS, Latr. 
1. S. genieidatus^ Black: aiitemifE and feet whitish.. 
Inhab. U. S. \ ^ ^ 
Body black, with a very slight cinereous tinge ; deeply 
punctured : head with a wide, but not very deep indenta- 
tion each side of the middle ; profoundly punctured : an- 
tennx whitish : anterior part of the head with short whi- 
tish hairs : thorax punctured ' like the head : elytra also 
with profound punctures : tergumti deeper Mack than the 
elytra ; segments wdth large punctures at base and small 
ones towards the tip : feet yellowish-wdiite ; posterior 
knees blackish. 
Length less than one-fiftli of an inch. 
