38 DESCRIPTIONS OF NEW fet-ECIES. 



128. P. terilliiialis. Linearis, lsete fiavo-testaceus nitidus, subtiliter 

 pubescens, capite ovali nigro, parce fortiter punctato, medio lsevi, thorace 

 latitudine longiore, postice subangustato, parce fortiter punctato, vitta 

 lata dorsali lsevi, elytris thorace longioribus, parce punctatis, nigris 

 triente postico rufo-testaceis, abdornine parce punctulato, segmentis 

 duobus ultirais supra et subtus nigris, postice testaceo-niarginatis ; pec- 

 tore nigro, antennis fuscis basi testaceis. Long. # 20. 



Maryland ; Mr. J. P. Wild. 



12?). P. paetleroitles. Linearis, lsete flavo-testaceus nitidus, subtili- 

 ter pubescens, capite ovali nigro, parce fortiter punctato, medio lsevi, 

 thorace latitudine longiore, postice subangustato, parce fortiter punctato, 

 vitta lata dorsali lsevi, elytris thorace longioribus, sat dense subtiliter 

 punctatis, cyaneo-nigris margine apicali flavo ; abdomine confertim 

 punctulato, segruentis duobus ultimis supra et subtus nigerrimis ; pec- 

 tore nigro, antennis nigro-piceis basi testaceis. Long. "17 — '20. 



Western States, Lake Superior; found also at Fort Yuma and 

 San Diego, California. A widely diffused species found on the 

 margin of streams. 



ISO. P. gratlis. Linearis, Isete rufo-testaceus nitidus, subtiliter pu- 

 bescens, capite postice late rotundato, parce fortiter punctato, medio 

 lsevi, thorace latitudine longiore lateribus parallelis, parce fortiter punc- 

 tato, vitta dorsali lata lsevi, elytris thorace vix longioribus, punctatis, 

 macula utrinque magna discoidali nigra ornatis, abdomine confertim 

 punctulato, segmentis duobus ultimis supra et subtus nigerrimis ; pec- 

 tore antennisque nigro-piceis, his basi testaceis. Long. '20. 



Colorado River, near Fort Yuma, California. 



131. P. UBllbripennis. Linearis, obscure rufo-testaceus nitidus 

 subtiliter pubescens, capite oblongo, piceo, parce fortiter punctato, medio 

 laevi, thorace latitudine longiore lateribus parallelis, parce fortiter punc- 

 tato, vitta lata dorsali laevi, elytris thorace parnm longioribus, subtiliter 

 punctatis, nigro-piceis, margine apicali obscure testaceo, abdomine sub- 

 tiliter haud. dense punctato : subtus totus rufo-testaceus, pedibus pal- 

 lidioribus. Long. -17. 



Middle States, rare. The antennae are wanting in the only 

 specimen in my collection. The head is less elongated than in 

 the species above described. 



132. P. litSiocliariims. Elongatus, nigro-piceus, capite magno 

 basi truncato, grosse punctato, vitta media laevi, thorace latitudine 

 longiore lateribus rectis, postice sensim paulo angustato, confertim 



