300 
TRANS. ST. LOUIS ACAD. SCIENCE. 
Vertex and pronotum trifoveate, body broad, 
each elytron with a long discal line, antennz 
with a 3-jointed club, undersurface of the head 
unicarinate - - - - - Bryaxis Leach 
Vertex bifoveate with a transverse frontal im- 
pression and obsolete circumambient sulcus, 
prothorax trifoveate, only the last antennal joint 
enlarged, body elongate - - EvupsEnius Le Conte 
Vertex bifoveate, different in the sexes; pro- 
thorax unifoveate, elytral discal lines short, 
body elongate’ - - - VeERTIcINOTUS Brendel* 
6" Body more elongate, convex; abdominal margin 
BY 
linear, narrow; prothorax with faint punctiform 
fovea or none. 
Vertex bifoveate, elytral lines wanting, abdo- 
men at the base without carinz, antennal club 
3-jointed - - - - SCALENARTHRUS Le Conte 
Vertex not foveate, elytral lines wanting, dorsal 
abdominal base bicarinate, antennal club one- 
jointed - - - - - PsELaptus Le Conte 
Vertex with four faint fovex, different in the 
sexes; prothorax bifoveate, with a flat basal 
transverse sulcus; elytral discal lines obsolete 
or wanting; sutural lines present, abdominal 
basal carine present; sexual differences in the 
vertex, antennez and anterior tibie: tarsi with 
two unequal claws” - - Artumius Le Conte 
Body circulo-cylindrical, narrow elongate, very 
convex; abdominal margin with the edges not 
parallel on each segment triangular the external 

* Verticinotus n.g, separated frcm Decarthron, The male was formerly described as 
Decarthron cornutum, the female as Bryaxis tnornata. The genus contains till now two 
species, one discovered in Iowa, the other in Florida, Last January I intended the name 
Anchylarthron for this genus, which, being rather an improper designation, I retracted it 
from being included in my pubilcation through the American Entomological Society of Phi. 
ladelphia. Notwithstanding it was published therein, probably by oversight. 
