354 PROCEEDINGS OE THE ACADEMY OP 



California, Mr. Murray. Of the same form asU. ferruginea Say, but 

 much larger, with the striae of the elytra much less strongly punctured, and 

 the intervals only very obsoletely punctulate. 



75. Meloe o p a c a, elongata, nigra, opaca, capite medio parce lateribus et pos- 

 tice sat dense punctate linea longitudinali obsolete impressa, fronte utrinque 

 transversim impressa, thorace latitudine breviore ovato, basi emarginato, sat 

 dense punctato, obsolete canaliculato, dorso vage bifoveato, elytris dense sat 

 fortiter intricato-rugosis, abdomine subtiliter rugoso. Long. '75. 



One specimen, Mendocino City, Mr. A. Agassiz. 



78. Meloe b a r b a r a, feneo-nigra, subnitida, capite disperse punctato, tho- 

 race oblongo, ad apicem rotundatim angustato, basi emarginato, dorso plani- 

 uscitlo, disperse punctato, obsolete canaliculato, antice vage bifoveato, ad basin 

 impresso, elytris valde convexis, parce rude baud profunde rugosis, abdomine 

 alutaceo-rugoso, antennis (9) medio parum incrassatis. Long. *60. 



Island of Santa Barbara, Mr. C. M. Bache. 



v > 



79. Lytta dolosa, minus elongata, metallescens opaca (nigro-cyanea, 

 olivacea, vel pistacea cupreo-tincta), capite parce punctato, postice canalicu- 

 lato, gutta frontali flava, basi truncato angulis posticis rotundatis, thorace 

 ovali, latitudine subbreviore, punctis parcis adspersis, subtiliter canaliculato, 

 dorso obsolete bifoveato, elytris thorace fere duplo latioribus dense rugosis et 

 punctulatis, antennis elongatis nigris, extrorsum moniliatis paulo incrassatis, 

 tibiis posticis calcari interno tenui acuto, externo dilatato, obtuso. Long. 

 42 -58. 



California, Mr. Murray ; Mendocino City, Mr. A. Agassiz. Very variable in 

 color, sometimes of a greenish bronze, sometimes almost black, with a bluish 

 brassy tinge. Tbe smaller specimens resemble in appearance L. sniarag- 

 d u 1 a Lee, but are at once distinguished by the outer spur of the hind tibia? 

 being much broader and more obtuse. 



80. Tragosoma H a r r i s i i Lee. A specimen of this species was found by 

 Mr. Gibbs, east of Fort Colville. It probably extends its range across the con- 

 tinent in more northern latitudes. 



81. Pogonocherus oregonus, niger, setis nigris elongatis erectis adsper- 

 sus, thorace vix calloso, spina laterali brevi obtusa, elytris parallelis punctis 

 magnis parcis, antice confusis postice seriebus paucis ordinatis, fascia lata an- 

 tica trienteque postico cinereo-pubescentibus, penicellis parvis brevibus tri- 

 seriatis ornatis ; antennis cinereo-annulatis. Long. - 28. 



East of Fort Colville, Mr. Gibbs. The long hairs with which this species is 

 clothed, and the three rows of bunches of black pubescence seen on the elytra, 

 cause it to resemble in appearance P. penicellatus Lee, but the thorax 

 has no very distinct elevations, and the lateral lines are less prominent. The 

 elytra are not gradually narrowed behind, have no costse, and the bunches of 

 black hair are very short. The anterior band occupies one-third of the surface, 

 except a basal broad triangular space ; the punctures not being covered with 

 hair appear black.* > 



* It may here be proper to state that Amphionycha subarmata Lee. (Col. Kansas, 

 22) from Niagara, on examination of perfect specimens, is found to have the ungues 

 simple, and in fact to belong to the genus Eupogonius Lee. The resemblance in appear- 

 ance to Amphionycha is most remarkable, though I have since observed that the genera 

 allied to Faperda have the eyes finely granulated, while in Liopus, Eupogonius, Pogono- 

 cherus and all allied forms the lenses are much larger, thus causing the eyes to appear 

 more coarsely granulate. A similar difference in structure obtains among the genuine 

 Cerambycidae, and by regarding it, many groups may be circumscribed with great pre- 

 cision. 1 hope shortly to make known some modifications in the natural arrangement 

 of these tribes suggested by this discovery. 



[Nov. 





