olO BRACIIELYTRA — OXYTELIDAE. 



straight, with a small tooth in middle. L. 1-|- — 2 1. Com- 

 mon. P. arenariics, Fourc. 



II, Anterior angles of thorax sharp ; transverse im- 

 pressions on head fine. 

 Black ; elytra often brownish, with yellow disc ; legs 

 pitch-brown, tarsi and sometimes tibiae yellow. Anterior 

 margin of forehead in male with a long horn on each side. 

 L. 1^ — If 1. Kather common. P. cornutus, Gr. 



&. Transverse impression dividing neck from head ahnost 

 effaced ; thorax very coarsely punctured. 



Black ; elytra often brownish ; femora generally blackish, 

 tibiae often brownish, tarsi yellow. L. 1 — 1} 1. Not un- 

 common. P. capita, Heer. 



jB. Elytra with a deep sutural furrow ; tliorax rather 

 broader than elytra. 



a, Scutellum witli a strong impression on each side in 

 front. 



Black ; elytra rarely pitchy ; legs yellow, femora gene- 

 rally pitch-l)rown. Transverse impression on head effaced ; 

 thorax rather closely and strongly punctured, more diffusely 

 in middle. L. 1\ 1. Scarce. P. nodifrons, Sahl. 



b. Scutellum with a narrow impression on each side in 

 front. 



IjLick, very shiny ; elytra often brown ; femora generally 

 brown, tibiae and tarsi yellow. Transverse impression 

 on head effaced, thorax with diffuse punctuation at sides 

 sides only. L. 1 1. Not common. P. nitens, Sahl. 



O.rt/telus, 



A. Side margin of thorax finely notched. 



a. Forehead impunctate in front ; elytra black ; body 

 broader. 



I. Antennae blackish ; sides of thorax distinctly 

 notched ; legs red-brown. 



Black or pitch-black ; not very shiny. Forehead rather 

 closely punctured and wrinkled Ijehind. L. 2^ 1. Common. 



0. rugosus, Fab, 



II. Antennae black, with first joint red, and next 



