COLEOPTERA. 
PRIONUS BIDENTATUS. 
SPECIFIC CHARACTER. 
Thorax fomewhat margined, unarmed, black, and downy : wing-cafes chefnut, clouded with yellow, 
bidentated at the apex, with four elevated lines. 
Pkionus Bidentatus : thorace fnbmarginato inermi, niger villofus, elytris caftaneis, flavo nebuloli^ 
apice bidentatis, lineis quatuor elevatis. 
STENOCORUS PUNCTATUS. 
GENERIC CHARACTER. 
Antennae long and filiform: eyes reniform, embracing the bafe of the antennae : thorax round: wing- 
cafes fame length as the abdomen, frequently with two teeth at the apex : body fomewhat cylindrical. 
SPECIFIC CHARACTER. 
Thorax fomewhat fpinous and fufcous ; wing-cafes dotted, anterior part fubrugofe, apex bidentated, with 
three yellow fpots. 
Stenocorus Punctatus : thorace fubfpinofo, fufcus, elytris punftatls antice fubrugolis apice bidentatis r 
maculis tribus flavis. 
STENOCORUS SEMIPUNCTATUS. 
SPECIFIC CHARACTER. 
Thorax fpinous, fufcous: anterior part of the wing-cafes rugofe with dots, and banded with yellow: pof- 
terior part fraooth : apex bidentated with two yellow fpots. 
Stenocorus Semipunctatus : thorace fpinofo, fufcus, elytris antice pundlato-rugofis flavo-fafciatia 
poflice Iffivibus apice bidentatis : macula flava. 
STENOCORUS BIGUTTATUS. 
SPECIFIC CHARACTER. 
Thorax without fpines, ferruginous: anterior part of the wing-cafes rugofe with dots, and fpotted with 
teftaceous : pofterior part fmooth, bidentated, and marked with a yellow fpot, 
Stenocorus Biguttatus : thorace mutico, ferrugineus, elytris antice pundlato rugofis teflaceo-macu- 
latis poflice laevibus, bidentatis macula flava. 
STENOCORUS OBSCURUS. 
SPECIFIC CHARACTER. 
Thorax rugofe, fpinous, fufcous, anterior part of the wing-cafes rough with dots : pofterior part fmooth, 
glofly, and bidentated at the tip. 
Stenocorus Obscurus: thorace rugofo fpinofo, fufcus, elytris antice punftato rugofis poflice laevibus 
nitidis apice bidentatis. 
Our new fpecies Stenocorus Obfcurus is delineated in the upper part of the plate, on which the infedts 
above mentioned are rcprefented, at fig, . 
