68 
U. S. p. R. R. EXP. AND SURVEYS — ZOOLOGY — 47TH PARALLEL. 
Steilacoom, one specimen, Mr. Gibbs. Eesembles in size and form H. punctipenms, Lee, 
(Report of Capt. Pope's Expedition,) but is distinguished by the blue color and the obsoletely 
punctured elytra. 
H. cerina, flavo-testacea, nitida, ovalis convexa, thorace parce subtiliter punctulato, convexo, 
lateribus rotundatis ; elytris subtiliter punctato-striatis, ad latera et apicem laevibus ; ore post- 
pectoreque paulo infuscatis. Long. '06. 
One specimen, San Jose, California. This species seems to belong to the division named 
Crepidodera, by Chevrolat, but the thorax has no posterior impression. 
H. aereola, oblonga, cupreo-aenea, nitida, capite angulatim impresso, occipite laevi, thorace 
subrugoso, grosse confertim punctato, postice transversim sulcato, et striola brevissima utrinque 
insculpto ; elytris fortiter striato-punctatis, interstitiis subtilissime punctulatis, antennis pedi- 
busque ferrugineis. Long. "1 — 'IS. 
San Francisco ; allied closely to H. helxines, but the thorax is more punctured and less convex, 
and the posterior transverse impression is less deep, and does not extend beyond the short basal 
striae. 
H. siihcrinila, oblonga, obscure aenea, capite angulatim impresso, occipite laevi, thorace 
confertim punctato, postice transversim sulcato et fovea parva basali utrinque notato ; elytris 
cinereo-pubescentibus, fortiter striato-punctatis, interstitiis parce rugosis et punctulatis ; anten- 
nis pedibusque testaceo-piceis, femoribus posticis obscuris. Long. "05 — "07. 
San Francisco. Allied to H. puhescens, but narrower and less pubescent ; the thorax is less 
coarsely and less densely punctured. 
H. ligata, elongata, nigra glabra, thorace latitudine breviore, sat punctato, piceo-nebuloso, 
lateribus late rotundatis, versus latera postice obsolete impresso, elytris sat dense punctatis, 
stria suturali obsolete impressa, vitta dorsali lata testacea utrinque ornatis, antennis pedibusque 
piceo-testaceis, femoribus posticis nigris. Long. "IS. 
One specimen, San Jose, California. Belongs to the division Systena, of Chevrolat, and is 
allied to H. elongata Fabr., (tceniata Say,) but the thorax is shorter and more gradually 
rounded on the sides. 
H. suboinea, elongata, aeneo-nigra glabra, capite parcius, thorace sat dense minus subtiliter 
punctato, latitudine fere sesqui breviore ; elytris sat dense minus subtiliter punctatis ; antennis 
pedibusque fusco-testaceis, illis articulo primo, his femoribus obscuris, posticis autem nigris. 
Long. "15. 
One specimen, San Jose, California. Belongs also to the division St/stena, and is similar in 
appearance t3 H. frontalis, but the thorax is broader and strongly punctured. 
H. albionica, oblongo-elongata, aeneo-nigra, nitida, capite parcius, thorace elytrisque minus 
subtiliter punctatis ; thorace latitudine breviore antrorsum angustato, antennis pedibusque 
nigris. Long. 'OS. 
San Jose and San Diego, California. Of the size of H. striolata, but narrower and less 
convex. 
H. lepidula, oblonga, aeneo-nigra, nitida, capite parcius, thorace elytrisque minus subtiliter 
punctatis, thorace latitudine breviore antrorsum angustato ; elytris utrinque vitta dorsali 
postice paulo flexa, et fere ad apicem extensa pallida ornatis ; antennis pedibusque nigris. 
Long. "ll. 
