1853.] 231 
few black bristles intermixed ; color bright scarlet, with a black humeral spot, 
and a black band at the second third of their length, which almost reaches the 
side and the suture, leaving only the extreme bead of the margins red. Beneath 
black, abdomen sanguineous. — 
The posterior band of the elytra is sometimes narrow and more widely inter- 
mee at the suture; the elytra are sometimes orange-colored, rather than 
scarlet. 
This very beautiful species is dedicated to the Marquis Max. de Spinola, 
author of the finely illustrated “‘ Essai Monographique sur les Clérites.” 
TostecorTera Edwards. 
T. cribrosa, brevis, inflata, purpureo-picea, supra glabra (?), thorace vario- 
loso, antice medio paulo deplanato, elytris subreticulatis, longitudinaliter 
obsolete sulcatis. Long. +65. 
Two females from the Mexican Boundary, collected as above. The genus 
was founded by M. Milne-Edwards in the “‘ Catalogue de la Collection Entomo- 
logique du Museum d’Histoire Naturelle de Paris,’’ p. 149, upon Melolontha 
lanceolata Say, (Journ. Acad. Nat. Sc. 3, 242), with which this species agrees 
in form and structure, but differs remarkably by the coarse sculpture of the 
upper surface, and by the absence of all pubescence or scaly appendages. The 
latter may have been removed by the alcohol in which the specimens were pre- 
served, but on very careful examination no trace of them could be found. The 
body beneath is shining, sparsely and finely punctured, with a short hair pro- 
ceeding from each puncture. 
(A male seen in the Smithsonian Institution at Washington, differed in having 
the body more regularly oval, less convex, and not inflated posteriorly.) 
CremastrocHiLus Knoch. 
1. C.Schaumii, ater, opacus, breviter setosus, thorace confertim punctato, 
lateribus rotundato, angulis anticis foveatis, posticis acutis subelevatis, elytris 
oe ellipticis minus profundis, mento modice concavo, postice subacuto. 
ong. °6. 
San Diego and Sta Isabel, California. Black, almost without lustre. Head 
finely scabrous; mentum shallow, moderately concave, rounded in front, ob- 
liquely narrowed behind, so as to be slightly angulated posteriorly. Thorax 
one half wider than long, narrowed in front, rounded on the sides; disc tolerably 
densely, not deeply punctured, with short bristles from the punctures; anterior 
angles foveate internally, posterior angles acute, scarcely elevated; base 
bisinuate, faintly impressed each side. Elytra flattened, not uneven, sparsely 
punctured with large elliptical shallow fovee, from which proceed short 
bristles. 
This species is larger than C. canaliculatus Kirby, and is very different 
in the form of the mentum and thorax,.and in the less distinct punctuation of 
the head. There is not a trace of emargination at the posterior part of the 
mentum; the anterior angles of the thorax appear to be more deeply foveate in 
the male than in the female. The excellent labors of Dr. Schaum in the pre- 
sent tribe are well known to every entomologist. 
2. ©. Knochii, ater, subnitidus, glaber, thorace parce varioloso canalicu- 
lato, lateribus rotundatis, angulis anticis foveatis, posticis elevatis nitidis, basi 
utrinque impresso, elytris inequalibus, punctis ellipticis minus profundis, mento 
modice concavo, postice acuto. Long. -45. 
Missouri Territory. Black, with but little lustre. Head densely punctured, 
mentum shallow, moderately concave, rounded in front, obliquely narrowed 
behind, so as to form an angle posteriorly. Thorax almost one half wider than 
long, channelled, narrowed in front, rounded on the sides; disc sparsely punc- 
tured, punctures large and shallow; anterior angles with a small fovea, pos- 
terior acute, shining, moderately elevated, base scarcely sinuate, with a broad 
moderately deep impression each side. Elytra flattened, with indications of 
two broad grooves on each side; surface somewhat irregular, impressed with 
37 
