NORTH AMERICAN COLEOPTERA. 
187 
The species varies considerably in the development of the tuber- 
cles, as well as in size and general coloration. Common in the Spring 
on Cratcer/us oxyacantha L. The sexes are readily distinguished by 
the usual characters. Long. 3-4.5 mm. ; .12-18 inch. 
Hal). — Occurs probably over our whole territory. Specimens are 
liefore me from the Eastern and Western States; Texas, California. 
2 . T. coiisors 11 . sp. — Ovate, nifotestaceoiis, thinly pubescent. Head con- 
vex, punctured with a fine frontal carina; frontal puncture deep. Eyes moder- 
ately convex, small. Beak long and slender, feebly curved, median elevated line 
not pronounced, suhstriate each side and densely punctured. Antennse slender, 
second joint scarcely longer than the third. Prothorax broadly rounded on the 
sides and feebly constricted at apex, base not strongly bisinuate. Surface very 
coarsely punctured with a dorsal line of condensed, white pubescence. Elytra 
subquadrate, slightly wider behind and scarcely one-half longer than wide at 
theba.se: humeri rounded, a transverse impression behind the scutellum ; striae 
feebly impressed, punctures moderate and rather closely placed ; a small tubercle 
on the third interspace on the summit of the declivity ; interstices equal, slightly 
convex, roughened ; underside of thorax more densel.y pubescent. Long. 2.7.5 
mm. ; .11 inch. 
Hah. — Oregon. An unique 9 Dr. Horn’s coll, represents this 
species. 
C’lONISTES gen. nov. 
A shoi't, stout, convex species from California, densely clothed 
with fine pubescence, forms the type of this genus. 
Beak moderately stout, cylindrical, slightly widened toward the 
apex and almost straight ; striato-punctate. Scrobes short, oblique, 
evanescent posteriorly. Antemue inserted about one-half ( S ) or 
two-fifths ( 9 ) from the apex ; scape slender, impinging against the 
lower segment of the eye; funicle rather stout, 7-jointed, first joint 
long, not very stout ; joints 2-4 a trifle longer than wide, 5-7 trans- 
verse ; club elongate-ovate, very closely articulate. Head deeply 
iminersed into the prothorax; front rather flattened with a deep, 
round fovea. Eyes round, approximate above. Prothorax wider 
than long, strongly narrowed in front ; surface uneven ; base straight 
each side, produced in front of the scutellum, the latter oblong. 
Elytra wider at base than the prothorax ; humeri prominent, rounded, 
a little widened to behind the middle and rapidly narrowed to and 
conjointly rounded at apex, which covers the pygidium completelv; 
surface irregular, tuberculate, very convex, striate; striie obsolete on 
the post-scutellar space and toward the margin of the elytra ; jninc- 
tures obsolete, oi’ at least concealed by the dense pubescence ; inter- 
