1912.] 



113 



punctured or entirely smooth. The microscope with a power of about f in. 

 is required for the pvirpose, and it is sometimes necessary to clean the thorax 

 with a little benzine. I am indebted to Mr. E. A. Newbery and Mr. J. H. Keys 

 for their kind assistance. The particulars are as follows : — 



P. splendens, F., finely punctured, striate 



at sides. 

 P. interynedius, Boisd., finely punctured, 



striate at sides. 

 P. laminatus, Creutz, finely punctured, 



striate at sides. 

 P. seneus, Rossi, striate, the lines normal. 

 P. proximus, Kr., striate, often obsoletely 



so on disc. 

 P. addendus. Sharp, striate, the lines 



normal. 

 P. carbonarius, Gyll., striate, the lines 



normal. 

 P. airaius, Grav., smooth and impunctate, 



faintly striate on margins. 

 P. scutatus, Er., finely punctured. 

 P. decorus, Grrav., striate, the markings 



rather coarse, almost shagreened. 

 P. politus, F., striate, the lines normal. 

 P. lucens, Mann., striate, the lines normal. 

 P. x^arius, Gyll. (including var. bimacu- 



latus), entirely smooth and impunc- 

 tate. 

 P. viarginatus, F., striate, the lines rather 



fine. 

 P. lepidus, Grrav., quite smooth. 

 P. albipes, Grav., striate, the lines normal. 

 P. umbratilis, Grav., striate, the lines 



normal. 

 P. cephalotes, Grav., striate, the lines 



normal 

 P. nigriventris, Thoms., striate, the lines 



normal. 

 P. fimetarius, Grav., striate, the lines 



being broken in the form of short 



dashes. 

 P. sordidus, Grav., smooth on disc, striate 



at sides. 

 P.fuscus, Grav., striate, the lines normal. 

 P. concinnus, Grav., smooth on disc, 



striate at sides. 



P. corruscus, Grav., smooth on disc, 



striate at sides. 

 P. ebeninus, Grav. (I have not had the 



opportunity of examining this 



species) . 



P. corvimis, Er., striate, the lines very 



fine and close. 

 P.fiimigatus,^r., striate, the lines normal. 

 P. debilis, Grav., striate, the lines faint, 



wide apart, and sinuate. 

 P. sanguinolentus, Grav., striate, the lines 



somewhat broken on disc. 

 P. cruentatiis, Gmel., striate, the lines 



normal, 

 P. longicornis, Steph., striate, the lines 



fine and straight. 

 P. varians, Payk. (including the var. with 



black elytra), striate, the lines rather 



fine. 

 P. agilis, Grav., striate, the lines normal. 

 P. vernalis, Grav., striate, the lines fine 



and close. 

 P. ventralis, Grav., striate, the lines wide 



apart and siniiate. 

 P. discoideus, Grav., striate, the lines 



wide apart and sinuate. 

 P. quisquiliarius, Gyll. (and var. dimidi- 



atus), striate, the lines finer than in 



any other species and slightly broken 



on disc. 

 P. splendidulus, Grav., striate, the lines 



faint and very sinuate. 

 P. thermarum, Aube, striate, the lines 



faint and very sinuate. 

 P. nigrita, Nord., striate, the lines normal. 

 P. fumarius, Grav., striate, the lines 



normal. 

 P. niicans, Grav., striate, the lines rather 



fine. 

 P. astutus, Er., striate, the lines rather 



faint and sinuate. 



G 



