126 DESCRIPTIONS OF NEW SPECIES. 



elytris basi thorace baud latioribus, striis antice obsolete punctatis 

 postice profunde impressis ; antennis pedibusque piceo-testaceis. Long. 

 •22. 



Mississippi Island, Gulf of Mexico; collected by Surgeon 

 Thos. Hewson Bache, U. S. V., and given to me by Dr. S. Lewis. 

 Much smaller and somewhat narrower than P. testacea, and re- 

 sembling P. picipes : on comparison it differs from that species 

 by the base of the thorax being as wide as the elytra, so that the 

 humeral angles do not project, and by the sides of the thorax being 

 more nearly parallel behind. 



In one specimen the color is almost black ; in another the 

 thorax is dark testaceous, the elytra black, with the base and 

 sides pale testaceous. 



In P. picipes the first throe joints of the anterior tarsi of the 

 male are dilated, the 2d and 3d becoming strongly transverse : I 

 do not find this character in any other species in my collection, 

 except P. globosa. 



404. P. debilis. Elongata, ovalis, testacea subnitida, capite parce 

 subtiliter punctato, thorace vix punctulato, latitudine fere duplo breviore, 

 a basi antrorsum angustato, lateribus oblique rotundatis, basi baud mar- 

 ginata puncto utrinque irapresso ; elytris thoracis basi baud latioribus, 

 gutta parva fusca utrinque ad medium ornatis, striis punctulatis antice 

 obliteratis, versus apicem paulo impressis ; prosterno pilis paucis ad 

 apicem ; femoribus parce punctatis. Long. *20 — *24. 



Cape San Lucas, Lower California; collected by Mr. Xantus. 

 Of the same form as P. testacea, but smaller, with the thorax 

 wider and not margined at the base, and the elytral striae not at 

 all impressed in front of the middle. The extreme margin of the 

 base of the thorax, as in the other species, is smooth and polished, 

 but is not limited by a distinct marginal line. 



PEIVTAPII1LLIS Latr. 



405. P. pallidllS. Ellipticus, elongatus convexus, testaceus, sub- 

 tiliter punctatus, brevissime parce pallide pubescens, prothorace basi 

 recta, utrinque tenuiter marginata, angulis subrotundatis ; tibiis anticis 

 haud dilatatis ; epistoma apice late rotundatum. Long. *10. 



One specimen; Pennsylvania: also found by Mr. Ulke in 

 Maryland. Belongs to the same division of the genus as the 

 European P. testaceus, having the epistoma broadly rounded, and 



