BULLETIN 
OF THE 
BROOKLYN ENTOMOLOGICAL SOCIETY 
VoL. XIII JANUARY, 1918 Nox t 
SOME NEW BEETLES IN THE FAMILIES CANTHARIDE 
(LAMPYRIDZ), PTINIDZ, AND SCARABAIDA, 
FROM WESTERN NORTH AMERICA, WITH 
NOTES UPON OTHERS. 
By Epwin C. VANDYKE. 
CANTHARIDE (LAMPYRIDZ). 
Plateros californicus n. sp—Moderately robust, black, prothorax with 
sides fulvous. Antenne extending backwards beyond middle of body, dis- 
tinctly serrate, second joint small and transverse, third triangular, but 
little longer than broad and about two thirds length of fourth, fourth 
slightly broader than third and one third longer than broad, fifth as broad 
as third, longer than fourth but distinctly less than twice as long as wide, 
sixth as long as fifth, slightly narrower and about twice as long as broad, 
the outer joints gradually narrower, joints 3-9 with outer angle acute and 
distal side of joint oblique. Prothorax broader than long, not carinate at 
apex but with apical margin notched, basal cellule rather broad and deep, 
with its basal and lateral margins elevated and gradually spreading out 
and merging with the disc in front. Elytra with alternate interstitial lines 
but slightly more elevated and then only near base, otherwise as in canalicu- 
latus, which it superficially resembles. Length 8 mm., breadth 3 mm. 
Type, a unique male in my own collection, collected by myself at Carr- 
ville, Trinity Co., Cal., July 5, 1913. 
This species closely resembles P. canaliculatus Say but differs 
principally in having more robust and more distinctly serrate an- 
tenne, and in having a very broad basal cellule on the prothorax 
as against a somewhat linear one in that as in most other species 
of the genus. This is the first species of the genus to be found 
on the Pacific coast. 
Calochromus slevini n. sp.—Black, pronotum and elytra to slightly beyond 
middle crimson, apical portion of the elytra blue black, velvety with ex- 
