118 GEO. H. HORN, M. D. 



50. C prasiiiti n. sp. — Form moderately elongate, color above bright green, 

 beneath dark violet ; surface moderately shining, glabrous ; antennte 9 piceous, 

 gradually more slender to tip, third joint as long as the next two; front moder- 

 ately convex, coarsely not deeply punctured, occiput without carina; clypeus 

 (245) very broadly, not deeply emarginate, arcuate each side ; thorax posteriorly 

 very nearly twice as wide as long, sides very feebly arcuate, gradually divergent 

 from the front angles, slightly arcuate posteriorly, disc convex ; surface even 

 without fovepe or callosities, punctuation rather sparse, a little coarse toward the 

 sides ; elytra very little wider than the thorax, parallel, arcuately narrowed at 

 apical third, the margin serrate, the apices separately rounded ; disc regularly 

 convex, without costie or fovese, the basal fovea very feeble ; surface finely, indis- 

 tinctly and sparsely punctate; body beneath dark violet, the punctuation coarse, 

 feebly impressed and not dense, the flanks of the prothorax almost smooth, ven- 

 tral segments without callosities, the margin of the last ventral entire ; proster- 

 num coarsely not densely punctured, feebly lobed in front ; anterior femur with 

 a short broad tooth, serrulate on its distal edge. Length .26 inch ; 6.5 nmi. 

 (Fig. 244.) 



Male. — Unknown. 



Female. — Anterior and middle tibiie ( 247) slightly arcuate, the posterior straight ; 

 last ventral segment (246) with the apex rounded, entire, an ante-apical serrate 

 ridge, the terminal teeth on each side prominent ; last dorsal coarsely punctured, 

 entire. 



A pretty little species readily known by its structural characters 

 and color. The contrast between the color of the upper and lower 

 surfaces is greater than I have observed in any other species. 



One specimen from California, probably the northern regions. 



Additional Notes. 



C. CALiFORNiCA MoUcli. quoted by Saunders (Catal. Bupr. p. 97) 

 as a synonym of californica Lee, was described as Belionota, and is 

 really Actenodes acornis Say. 



C. ERRANS Gory, quoted from N. A., is probably from S. A. See 

 Lee, Proc. Acad. 1873, p. 331. 



C. FASTIDIOSA Go7'y, described from Brazil, is said by Dr. LeConte 

 to be a variety oi femorata, Proc. Acad. 1873, p. 332. 



C. FRONTALIS OUv., formerly in our lists, is from Brazil. 



C. Germari Lap. et Gory, heretofore quoted as a synonym oi 

 sexsignata Say, is a synonym of Solieri. See Lee. Proc. Acad. 1873, 

 p. 332. 



C. THORACICA Fah., is from the island of St. Thomas. 



In the bibliography, references and synonyms not pertinent to our 

 fauna have been omitted. 



