INSECTS — COLEOPTEKA 
67 
EuMOLPUS Kugellan. 
E. smaragdulus, supra viridi aeneus nitidus, confertim punctatus, pube brevi rigida alba parce 
vestitus, capite aequali, thorace convexo lateribus rotuiidato, elytris fortius inordinatim punc- 
tatis. Long. 'IS. 
One specimen, Sacramento, Mr. Wittick. Eesembles in generic cbaracters several other 
species, which, in form, appear like Pachnephorus, but they are distinguished by the posterior 
tibiae being not toothed, while the claws are strongly toothed. I have not found any descrip- 
tion or name for this genus, which is readily known by these two characters, and by the thorax 
not being lobed behind the eyes. 
CiffiYsociius Eedt, 
C. cohaltmns, splendide cyaneus vel viridi-cyaneus, nitidus, thorace parce piinctulato et dis- 
perse grosse punctate, lateribus postice paralielis, antice subito rotundatis, angulis anticis 
prominulis, elytris modice punctatis. Long. "45. 
Oregon and California. Larger than (7. auratus, and distinguished by the sides of the thorax 
being more suddenly rounded near the apex, and by the elytra being less sparsely and more 
distinctly punctured. 
Baltic A Fal>r. 
H. puncticollis , flavo-testacea, ovalis modice convexa, thorace latitudine breviore, antrorsum 
angustiore, fortius punctato, guttis quatuor nigris ornato, scutello, elytrorum vitta suturali, 
altera sub marginali ad apicem connexis, dorsalique postice paulo abbreviata nigris ; labro, 
palpis, antennis tibiis tarsisque nigris ; metasterno testaceo, postice nigro. Long. "3 — "35. 
Oregon and California. Eesembles closely R. alternata, but ditiCTS by the thorax being much 
more distinctly punctured, and by only the posterior part of the metasternum near the middle is 
black. I have adopted the name under which it was sent me by Col. Motschulsky. 
H. UmbicolUs, elongato-ovalis, nigra, capite parce punctulato, lateribus et basi marginatc, 
limbo toto flavo, elytris subtilius sat dense punctatis, vittis duabus margineque tenui fiavis ad 
apicem connexis. Long. "3. 
Sacramento, Mr. Wittick. Similar to H. j'^ensylvanica, but narrower, with the thorax sparsely 
punctured. The elytra are not sulcate, and the yellow vittae are broader. 
H. prasina, olivaceo-aenea, thorace latitudine breviore, antrorsum baud angustato, lateribus 
subrectis marginatis, punctato, postice transversim sulcato ; elytris subsulcatis punctulatis, costa 
submarginali postice ad suturam tlexa. Long. '23. 
San Francisco. Narrower than H. plicipennis , and distinguished by the more strongly punc- 
tured thorax not being narrowed anteriorly, and by the elytra being feebly sulcate. 
H. oholina, oblonga, cupreo-aenea, thorace nitido convexo, latitudine breviore, antrorsum 
paulo angustato, lateribus vix rotundatis^ parce punctulato, postice transversim sulcato, elytris 
sat dense punctatis baud costatis. Long. 'IT. 
San Francisco, not common. Tlie more convex thorax distinguishes this from some allied 
species in my collection. 
H. lazulina, oblonga, viridi-cyanea, nitida, thorace latitudine breviore, antrorsum subangus- 
tato, lateribus paulo rotundatis, subtiliter punctulato, postice transversim subtilius impresso ; 
elytris subtiliter fere obsolete punctulatis. Long. 'IS. 
