I'HILONTHUS. V 267 



II. Thorax half as long again as broad. 



1, Elytra pitchy ; length 2| lines. 



Elongate. Pitch-black, elytra more or less pitch-brown 

 toward apex, legs and antennae reddish-yellow, latter with 

 penultimate joints distinctly broader than long. Punctua- 

 tion of elytra rather diffuse and deep, of abdomen diffuse, 

 fine. Anterior tarsi simple in botli sexes. Scarce. 



P. splendidulus, Gr. 



2. Elytra yellow- brown ; length 1| — If lines. 



Elongate. Head and abdomen pitch-black, latter with 

 margin of segments and its apex yellow-brown ; thorax 

 pitch-brown ; antennae yellow-brown, their base and the 

 legs yellow. Penultimate joints of antennae scarcely 

 broader than long. Punctuation of elytra diffuse and 

 deep, of abdomen not very close, very fine. Anterior 

 tarsi scarcely dilated in male. Not uncommon. 



P. thermarum, Aub. 

 Z>. Thorax with a row of six impressions on each side of 



disc. 



a. Length 3^ — 3|- lines. 



I. Legs reddisli-yellow, with coxae black. 



Black ; head and thorax with a gray silky reflection ; 

 elytra dark greenish. Penultimate joints of antennae 

 longer than broad ; thorax rather narrower than elytra, 

 latter closely and rather finely punctured. Anterior tarsi 

 of male moderately strongly, of female slightly dilated. L. 

 3| 1. Not common. P. fumarius, Gr. 



II, Legs black, with tarsi brownish. 



Deep black ; head and thorax with gray silky reflection. 

 Penultimate joints of antennae distinctly longer than broad ; 

 thorax not much narrower behind than elytra, latter closely, 

 very finely punctured. Anterior tarsi of male rather 

 strongly, of female slightly dilated. L. 3^ 1. Kather com- 

 mon. P. nig r it a, Nord. 



h. Length 2 — 2| lines. 



Penultimate joints of antennae about as long as broad. 

 jT. Thorax distinctly narrowed in front. 



1, Antennae unicolorous black-brown; elytra dull 

 gray-black. 

 Gray-black ; head and thorax silky looking ; legs, except 



