12 Dr. G. C. Reich’s Description 
duorum praecedentium insimul, apice unguiculis duobus bre- 
vibus validiusculis instructo. 
Abdomen subparallelum, pallidius, griseo-pubescens, segmentis sex 
compositum, quorum primum sub postpectore occultum, an- 
gustum, in duas partes remotas laterales divisum ; secundum 
latissimum, antice medio convexum, carinula inter coxas pedum 
posticorum interposita ; sequentia paullo breviora, parallela, 
marginibus posticis pallide limbatis ; ultimum brevius, paullo 
angustatum, apice medio emarginatum ; ano subtus protruso 
bifido. 
Species 1. T. Pallidipennis : subcylindrico-depressus, ater, niti- 
dus ; capite antice subretuso, rude punctato ; thorace paralle- 
lepipedo, mutico, arctim subtilius punctato ; disci linea media 
longitudinali, callosa, polita, medio quasi perforata, aliaque 
utrinque laterali abbreviata, antice crassiori, punctisque tribus 
lateralibus impressis cicatricosis oblique triangulatim positis ; 
elytris linearibus parallelis, apicem versus vix paullisper la- 
tioribus, muticis, glabris, marginatis, testaceis ; disci lineis 
duabus longitudinalibus elevatis, ad apicem rotundatum, ob- 
solete excurrentibus ; pedibus atro-piceis. Variat colore piceo. 
Longitudo ab apice mandibularum ad anum trium fere pollicum, 
latitudo ad humeros elytrorum septem, ad apicem eorum octo 
ad novem linearum. 
Habitat in provincia Entre Rios reipublicae Argentinensis Ame- 
ricas meridionalisj arbores corrodens. Tab. 2. fig. 1. magni- 
tudine naturali ; fig. 2. maxilla cum palpis ; fig. 3, mentum 
cum palpis labialibus. 
The external form of this beetle bears such a striking resem- 
blance to some of the genera of the tribe (or, I should rather say, 
family,) Prionida, that I do not doubt but that it will be ranged, 
without hesitation, in the same family, inasmuch as its habits and 
metamorphoses are in all probability similar to other Prionida ; 
for, although the singular filiform or rather short and almost sub- 
serrated or submoniliform antennae, the distinct tooth at the in- 
sertion of the mentum on both sides of the mouth, and the un- 
armed thorax of this beetle, seem to approach the genus Parandra, 
which Latreille (Gen. Crustaceor. et Insector. III. 28) had esta- 
blished as the first of his Prionii, but which M. Audinet Serville 
(1. c.) has lately entirely excluded from them, there are yet so many 
grounds for agreeing with the proposed collocation, that I cannot 
abstain from placing the new genus Torneutes at the head of the 
true family Prionida, especially as it really seems to be a link of 
