INSECTS — COLEOPTERA. 37 



punctoque ad medium, maculisque pluribus ad marginem et pone medium nigris confluentibus 

 variegatis, apice coniunctim rotundatis. Long. -13. 



San Jose, California. Larger than 0. colon, and distinguished by distinctly channelled and 

 less convex thorax, by the greater number of the dark spots of the elytra being behind the 

 middle, while in 0. colon the reverse is the case. 



Meligethes Steph. 



M. rufimanus, ovalis, virescenti niger subnitidus, dense subtilius punctatus, breviter cinereo- 

 pubescens, thorace lateribus antice rotundatis, angulis posticis obtusis tibiis anticis rufis paulo 

 dilatatis extrorsum serrulatis, posterioribus dilatatis dense spinulosis. Long. -09 — "lO. 



San Jose, California, on the flowers of Kanunculus. The thorax is nearly twice as wide as 

 long ; the sides are almost parallel behind the middle, but converge anteriorly, and are con- 

 siderably rounded ; the elytra are broadly rounded at tip, and are one-half longer than their 

 width. 



31. moerens, ovalis, nigro-virescens, subnitidus dense subtilius punctatus, tenuiter griseo- 

 pubescens, thorace lateribus rotundatis angulis posticis obtusis, tibiis anticis minus dilatatis, 

 ad basin subtilissime, ad apicem distinctius crenulatis, posterioribus dilatatis extrorsum dense 

 spinulosis. Long. '10. 



Oregon. Very similar to M. rufimanus, but differs in the sides of the thorax being more 

 rounded, with the posterior angles more obtuse ; the anterior tibite are narrower, and the 

 crenulation towards the base becomes so fine as to be hardly visible. 



M. seminulum, ovalis convexior, niger nitidus, thorace sat dense subtilius punctato, tenuiter 

 marginato, latitudine plus duplo breviore, lateribus rotundatis, angulis posticis obtusis, elytris 

 subtilius sat dense punctatis, tibiis omnibus modice dilatatis, anticis versus apicem subtiliter 

 crenulatis posterioribus extrorsum spinulosis. Long. "08. 



Oregon, one specimen. The pubescence has probably been removed by the alcohol in which 

 the specimen was preserved. Smaller and more convex than the others, and the margin of 

 the thorax is narrower ; the thorax itself is wider and more rounded on the sides. The 

 anterior tibiae at the base appears smooth. 



Amphictrta Er. 



A. chrysomelina, aptera, longius ovata, antice angustior piceoaenea, nitida convexa, dense 

 subtiliter punctulata, tarsis piceis, tibiis anticis extrorsum obtuse angulatis. Long. -35. 

 Tab. — , fig. 14. 



Erichson, Germ. Zeitschr. 4, 40 ; Lee. Proc. Acad. Nat. Sc. 7, 116. 



Oregon : collected by the late Dr. J. K. Townsend, and given me by Mr. Edwin Willcox. 



Oremastochilus Knoch. 



C angularis, ater opacus, breviter setosus, thorace confertim punctato, lateribus antice rotun- 

 datis, postice obliquis, angulis anticis foveatis acutis, posticis productis elevatis acutis, impres- 

 sione obliqua definitis, elytris punctis minus jirofundis ellipticis ; mento concavo postice acumi- 

 nate. Long. '5. 



One specimen from Sacramento, collected by Mr. Wittick. This, in form, size, and general 



