786 Goleopterological Notices^ VI. 



lowing joints are somewhat stout, gradually and feebly incrassate, 

 the eleventh rather small and obliquely obtuse. The eyes are 

 large, very coarsel}' faceted, minutely and scarcel}' visibly setose, 

 and with a small but distinct rounded emargination ; they extend 

 ver}' nearly to the base, and the occiput is strongly, transversely 

 arched and elevated ; epistomal suture distinct ; last joint of the 

 maxillary palpi right-angled, of the labial moderately dilated, 

 concave, densely spongy and also fineh' setose beneatli. Pro- 

 thorax transverse, with the sides parallel. Scutellum moderate 

 in size, narrowl}^ truncate and feebly bidentate at apex. Elytra 

 ample. Middle cox;e moderate!}' separated, the posterior widely 

 separated by a broadl^^ rounded abdominal projection. Legs mod- 

 erately slender, the posterior femora longer and thicker, finely 

 pubescent ; tibiie slender, without trace of terminal spurs ; tarsi 

 rather short, the basal joint much elongated. Abdomen with 

 the basal segment very large, more than equalling the entire re- 

 mainder, with scarcely a trace of the dividing suture; second 

 distinctly longer than the third ; fourth short in both sexes. 

 Yestiture of the bod}' very short, decumbent, dense, consisting of 

 very minute, and longer and sparser hairs, intermingled. 



This genus is quite distinct, and is the onl}- one which occurs 

 in both the Atlantic and Pacific coast faunal regions. The 

 species may be known thus : — 



Smaller and narrower, more opaque, the punctuation much denser; sides of 

 the pvothorax not at all prominent behind the apex...l. brunnipennis 



Larger and n\ore obese, more shining, much less densely and less evenly punc- 

 tate, the sides of the prothorax moreangulate anteriorly 2. saginattis 



The sexual characters are extremely feeble throughout. 



1. P. Ibrtliinipeiinis Lee. — Trans. Am. Ent. Soc, 1875, p. 176 (Xylo- 

 philus). 



Moderately stout, convex, opaque, dark red-brown throughout, 

 the head and posterior femora blackish, the ])ronotum piceous; 

 pubescence short, dense, cinereous and decumbent. Head trans- 

 verse, convex, broadly arcuato-truncate at base, dull, finel}' but 

 strongh', rather densel\^ punctate ; e^'es large and convex, sep- 

 arated by three-fourths of their own width or somewhat more, 

 the tempora short, much less prominent and convergent ; antennju 

 stout, two-fifths as long as the bod}-, the joints feebly obconical, 

 the first elongate-oval, penultimate joints wider than long, the 



