a Family of Coleopterous Insects. 
66 1 
internal margin of the clava of the antennae exhibits a stronger 
contraction at the base than in that species, and the incision on 
its outer edge is much wider, and the basal tooth very acute. 
(Tab. nostr. Fig. 50.) If ultimately found distinct, the species 
may receive the name of acutidens. 
I provisionally place in this genus the two following insects, 
not having had an opportunity of minutely examining their 
trophi : their general flattened appearance and the apparent in- 
dication of a rudimental notch at the base of the clava of their 
antennae approach the true Platyrhopali; whilst in some respects 
they agree with some of the Faussi , such as P. affinis , §c. I 
obtained a knowledge of them, as well as of the Paussus excavatus 
and P. armatus, during my visit to Paris in September 1830, 
subsequent to the reading of the commencement of this paper. 
Species 3. Platyrhopalus ? l^viprons. Dejean. 
Tab. XXXIII. Fig. 65—67. 
P. latus subdepressus toto obscurb rufo-castaneus, antennarum 
clavA ferb ovatA depressA basi truncatA, externb in unguem 
parvum producto, margineque externo quadri-subdentato, 
thorace utrinque anticb rotundato-dilatato. 
Paussus laevifrons. Dejean , Mss. 
Habitat in AfricA occidentali, SenegaliA. Dom. Dumolin. 
In Mus. Dejean, et Dupont. 
Long. corp. lin. 5. 
Species nova magnaque. Latus, subdepressus, punctatus, ob- 
scurb rufo-castaneus, subhirsutus, laevis, nitidus. Caput por- 
rectum, subquadratum, vertice convexo, laevi, anticb rotun- 
datum, posticb in collum breve productum. Oculi medio- 
cres. Antennarum clava magna ferb ovata depressa sc. 
suprA disco parflm convexo, subtfls etiam parflm convexo 
sed 
