1S53.] 2ai 



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- 

 rupted 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 Clerites." 



TosTEGOPTERA Edtvards. 



T. cribrosa, brevis, inflata, purpureo-picea, supra glabra (?), thorace vario- 

 loso, antice medio paulo deplanato, elytris subreticulatis, longitudinaliter 

 obsolete sulcatis. Long. .'Bo. 



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.) 



Ceemastochilus Knock. 



1. C.Schaumii, ater, opacus, breviter setosus, thorace confertim punctate, 

 lateribus rotundato, angulis anticis foveatis, posticis acutis subelevatis, elytris 

 punciis ellipticis minus profundis, mento modice concavo, postice subacuto. 

 Long. -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 fl.attened, not uneven, sparsely 

 punctured with large elliptical shallow foveae, from which proceed short 

 bristles. 



This species is larger than C. canaliculatus Kirhy, 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. C. Kn o chii, ater, subnitidus, glaber, thorace parce varioloso canalicu- 

 lato, lateribus rotundatis, angulis anticis foveatis, posticis elevatis nitidis, basi 

 utrinque impresso, elytris inaequalibus, 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 



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