Royal Physical Society. 95 



the above is a translation, and which seems to me to show con- 

 siderable affinity to the preceding species (spadiceus, St.). 



4. C. agilis, Illig. 



Ptomaphagus agilis, Illig. Kaf. Pr. 882. 



Choleva agilis, Spence, Linn. Trans, xi. 1402. 



Catopsfuscus, Gyll. Ins. Suec. i. 281. 5. 



Choleva testacea, Latr. Gen. Crust, et Ins. xi. 28. 2. 



Catops agilis, Erich. Kaf. d Mark Brand, i. 234. 2; Sturm, Ins. xiv. 7. 



2. tab. 272. n. N ; Heer, Fn. Helv. i. 379. 3 ; Redt. Fn. Aust. 133. 3 ; 



Kraatz, Stett. Ent. Zeit. xiii. 405 ; Fairm. & Laboulb. Fn. Ent. Franc. 



i. 300. 



Oblongo-ovatus ; nigro-piceus, vel testaceo-piceus ; Fig. 5. 



thorace transverso, postice latiore ; elytris sub- 



striatis, antennis pedibusque ferrugineis. 

 Long. 2^ lin. 



Mas, tibiis mediis curvatis ; trochanteribus posticis 

 inferiore dente curvato acuminato armatis. 



Shorter and somewhat broader than C. angustatus, Fab., not 

 very constant in colour, the darkest examples ferruginous brown 

 with lighter antennae. The antennae are scarcely half so long as 

 the body; the third joint almost twice as long as the second; 

 the fourth, fifth and sixth are nearly equally long, the remainder 

 (seven to eleven) are somewhat stronger than the preceding; 

 the eighth is half as long as the ninth ; the ninth equal to the 

 tenth ; the last joint is a half longer than the preceding joint, 

 obtusely acuminate. The head is brown, extremely fine and 

 tolerably sparingly punctured. The thorax is almost twice as 

 broad as long, nearly of the breadth of the elytra, narrower in 

 front than behind, the broadest part being decidedly behind the mid- 

 dle; the posterior angles are obtuse and rounded, and the sides are 

 neither spread out nor bent up, so that the moderately dense and 

 very finely punctate upper side is entirely smooth. The colour of 

 the thorax is dark ferruginous brown, darker in the middle. 

 Individuals with the thorax entirely blackish occur rarely. The 

 elytra are generally ferruginous or testaceous, sometimes chestnut 

 and sometimes pitchy brown ; they are finely and densely punc- 

 tate ; at the base very feebly, towards the apex more distinctly 

 finely punctate striate. The legs are ferruginous brown, the 

 middle tibice of the males are bent strongly inwards, the posterior 

 trochanters are not distant at the base, and are armed on the 

 inner side with a short strong pointed tooth. 



This species is readily distinguished by the form of the thorax, 

 narrowest in front and widest behind. The other particulars 

 which I have printed in italics are characters also easily seized. 



