British Species of Corticaria. 141 



and a series of exceedingly minute and indistinct punctures. The 

 anterior and middle tibiae are slightly bent inward at the apex 

 in the males, and the basal joint of the anterior tarsus is slightly 

 enlarged. 



Very common, and widely distributed. 



Gyllenhal applies Marsham's name " ferruginea" to the species 

 next to be described, stating that he has Kirby's authority for so 

 doing; this is remarkable, since the C. ferruginea o^ GyW. (a very 

 uncommon insect with us) does not exist in Kirby's Collection, 

 where the present species stands to represent the €. ferruginea of 

 Marsham, as it does likewise in Stephens' Collection. There is 

 no Marshamian specimen of either this or the next species in 

 Stephens' Cabinet, and Marsham's description unfortunately does 

 not serve to determine the insect, inasmuch as he uses the term 

 "ferruginea" to denote its colouring ; the present species being 

 testaceous, and the next being castaneous. On the whole, how- 

 ever, I think it more probable that Marsham's description was 

 intended for the common species ; yet, since there may be a 

 doubt, I think it better to adopt the names now universally used 

 for the two insects. 



8. Corticaria ferruginea. C. sub-linearis, depressa, castanea, 

 capite nigricante ; thorace sub-quadrato, postice foveolato ; 

 elytris subtiliter punctato-striatis, interstitiis subtilissime 

 seriatim punctatis. 



Long. |— f lin. 



Latridius ferrugineus, Gyll. Ins. Suec. iv. 131, 9. 

 Corticaria ferruginea, Steph. Illustr. iii. 108, 6; Manual, 130, 

 1052. 



^ Mannerh. Germ. Zeitschr. v. 45, SQ. 



linearis, of Stephens' Collection. 



Scarcely longer, but decidedly broader than the preceding 

 species, and further distinguished by its chestnut-brown hue and 

 more delicate puncturing. Head pitchy black, rather narrower 

 than the thorax ; forehead convex, punctured ; antennas about 

 equal to the head and thorax in length. Thorax subquadrate, 

 rather broader than long ; truncated in front ; slightly contracted 

 behind, the sides very gently rounded, obscurely denticulate an- 

 teriorly, and with about three stronger teeth behind, the last of 

 which forms the posterior angle of the thorax; the hinder margin 

 rounded ; upper surface convex, rather thickly and finely punc- 

 tured, and with a small fovea behind. Elytra about three times 



