350 PROCEEDINGS OF THE ACADEMY OP 



nigris, trochanteribus femorumque basi flavis. Long, (elytr. inclus.) '47 '62 ; 

 lat. elytr. max. -36 '50. 



Oregon. Differs from our other species by the much larger size of the ely- 

 tra, which are so much dilated behind that their greatest width is but little 

 less than their length, and the lateral outline is decidedly concave. The sides 

 of the thorax before the angles are nearly parallel ; the apex, as usual, is semi- 

 circular. 



59. Podabrus torquatus, niger (cinereo-pubescens ?), nitidus, capite 

 flavo, antice laevi pone antennis fortiter punctato, cervice nigro-piceo, thorace 

 flavo latitudine plus sesqui breviore, lateribus rotundatis late reflexis, angulis 

 anticis rotundatis, posticis dentiformibus prominulis, antice late transversim 

 concavo et parce puuctulato, basi marginato, pone medium linea dorsali pro- 

 funda impresso, elytris subtilius rugose punctulatis, abdominis lateribus ano- 

 que pallidis, pedum antennarumque basi testacea ; his articulo 3io 2ndo duplo 

 longiore, at 4to breviore, palpis nigris basi flavis. Long. "38. 



Bitter Root Valley, Rocky Mountains. Lieut Mullan's Expedition ; collect- 

 ed by Mr. Pearsall. The pubescence has been all removed. The claws are 

 pale yellow, and cleft, with the under portion scarcely shorter than the upper. 



60. Podabrus mellifluus, niger opacus cinereo-pubescens, capite ante 

 antennas flavo, parce punctato, postice fortiter punctato, thorace latitudine 

 duplo breviore, lateribus late rotundatis, angulis anticis rotundatis, posticis 

 obtusis baud prominulis, confertim subtiliter punctato, lateribus late rufo- 

 testaceis ; elytris dense subtiliter rugose-punctatis. Long. *40. 



California, Mr. Murray. Quite distinct by the above characters from any 

 other species found within the United States. The third joint of the antennae 

 is longer than the second, but shorter than the fourth ; the first three joints 

 are testaceous beneath : the claws are cleft, the under part scarcely shorter 

 than the upper. 



61. Podabrus s caber, elongatus, niger opacus cinereo-pubescens, capite ante 

 antennas, fere Isevi utrinque testaceo, postice dense punctato, collo valde 

 elongato, thorace latitudine haud breviore, lateribus postice rectis antice ro- 

 tundatis, angulis posticis rectis vix prominulis, confertim punctato, antice 

 transversim late concavo, postice linea dorsali impressa, lateribus late rufo- 

 testaceis, elytris dense granulato-rugosis. Long. *42. 



Oregon. The first joint of the antennae is yellow beneath, the third joint is 

 one-half longer than the second, and not shorter than the fourth ; the claws 

 are acutely toothed about the middle. 



62. Podabrus c orne u s, valde elongatus, supra testaceus nitidus, capite 

 antice lrevi, postice piceo sat fortiter punctato, thorace latitudine haud brevi- 

 ore, lateribus late rotundato, angulis posticis acutis, vix punctulato, antice, 

 ad latera, et disco late concavo, inde obtuse bicostato, elytris confertim rugose 

 punctulatis; subtus niger, trochanteribus, femorum apice, tibiisque anticis 

 testaceis ; tarsis antennisque fuscis, his basi testaceis. Long. *38. 



California, Mr. S. S. Rathvon. Bears a striking resemblance in appearance 

 to TeJephorus 1 a r v a 1 i s Lee. The third joint of the antennae is intermediate 

 in size between the second and fourth ; the claws are cleft, with the inferior 

 portion but little shorter than the superior. 



63. Podabrus m a c e r , valde elongatus, niger opacus cinereo-pubescens, 

 capite confertim punctulato, thorace latitudine longiore, lateribus fere rectis 

 parallelis pallide testaceis, angulis anticis rotundatis, posticis obtusis, punctato, 

 antice posticeque late transversim concavo, disco pone medium costis duabus 

 magnis obtusis elevatis, elytris dense rugose punctulatis, antennarum articulo 

 3io 2ndo duplo longiore, at sequente paulo breviore. Long. -31. 



San Mateo, California, Mr. A. Agassiz. The antennse are not much shorter 



[Nov. 



