INSECTS COLEOPTERA. 36 



■ distincta basali medio latiore signato, elytris testaceo-marginatis pone medium versus margi- 

 nem longitudinaliter leviter impressis, lineis solitis punctatis distinctis ; subtus cum pedibus 

 testaceus, suturis abdominisque lateribus fuscis ; coxarum posticarum laciniis btevibus valde 

 divergentibus rotundatis. Long. 1.03. 



One male, Prairie Paso; Dr. Cooper. Narrower and less convex than usual, and tliiis 

 resembling in form D. conformis, perplexus, &c., of Europe. The thoracic basal yellow mar- 

 gin is slender, it bends forwards half way between the basal angle and the scutel, and is then 

 continued across parallel with the base, forming the outline of such a mark as is seen in 

 D. anxius ; the basal edge and the scutel are reddish-yellow ; the line at the apex touches the 

 margin only towards the angles ; in the middle it is bounded by the line of punctures ; the 

 sides converge anteriorly, and are very broadly but regularly rounded. The elytra are very 

 thickly punctulate, except towards the base, where they become almost smooth ; the submar- 

 ginal longitudinal impression extends from the middle half way to the tip, but it is not well 

 defined ; the subapical yellow band, usually seen on the elytra, is entirely wanting. 



Necropiiorus Fabr. 



N. pollinctor, niger, thorace ovali transverse, marginibus late depressis, disco tenuiter canali- 

 culato, fortius transversim impresso, elytris parcius punctatis, macula latterali ad medium in 

 epipleuram extensa, alteraque parva lunata ante apicem rubris ; pectore fiavo-pubescente ; 

 abdomine breviter griseo-ciliato, tibiis posticis rectis. Long. -58. 



Lee. Proc. Acad. Nat. Sc. 7, I'J. 



Collected by Dr. Cooper, on the journey from Fort Vancouver to Yokolt Plains. Resembles 

 in the form of the thorax, N. sexpxistulatu.s, but the impressions are deeper. The margin is 

 punctured ; the disc in one specimen is smooth, in another, obsoletely punctulate. The 

 antennre are entirely black. I have not changed the name of this species, since N. pollinctor 

 Mann, appears merely a slight variation of N. rnaritimus. 



Thinopinus Lee. 



T. pidus, testaceus vel pallidus, capite thoraceque nitidissimis hoc fascia iuteroculari ad 

 latera postice flexa ochroleuca nigro-variegato, thorace postice subangustato, macula utrinque 

 maxima aunulari postice interrupto nigra, elytris obsolete strigosis, annulo lato nigro ad 

 humerum interrupto signatis, thorace duplo brevioribus, abdomine supra bifariam nigro-sig- 

 nato. Long. '55 — -15, Tab. I, Fig. 12. 



Lee. Ann. Lye. Nat. Hist, of New York, 5,216. 



TricJiocanthus variegatus, Motsch. Etudes Entom., 1852, p. 78; Mann. Bull. Mosc, 1853. 



Fouad on the sea coast of California, as far south as San Diego ; on the wet sand below high 

 water mark, on the open ocean shore ; also found in Russian America, according to Motsch- 

 ulsky. The very short elytra, which overlap each other at the suture, as in Xantholiuus, 

 and the absence of wings, renders this very distinct from every other genus of the tribe of gen- 

 uine staphylinidaj. 



HiSTER Linn. 



E. sellatus, oblongo-ovalis convexus niger nitidus, thorace latitudine duplo breviore bistriato, 

 interstitio antice punctis paucis notato, lateribus et apice longe flavo-ciliatis, elytris rubris. 



