NEW BRITISH SPECIES, ETC., IN 1866. 93 



C. thapsus, according to that gentleman, is greener, and 

 has the black sutural spots very unequal in size. According 

 to Redtenbacher its suture and alternate interstices are some- 

 what more elevated, and checkered for their entire length with 

 bordered, pale yellow and brownish-black haired spots. 



94. Xyloterus quercus, Eichhoff, Berlin. Ent. Zeit. 



1864, 381; D. Sharp, Proc. Ent. Soc. 19 Nov. 

 1866. 



To this recently described species (and which, on account 

 of its well defined markings, is the most worthy to bear that 

 specific name) must be referred the insects standing in our 

 collections as X. lineatus, and chiefly coming from the store 

 boxes of the Rev. A. Matthews, who has found it in Sher- 

 wood Forest. The true lineatus has only been taken by 

 Mr. Sharp and myself in felled pines at Rannoch. 



X. quercus (amongst other characters) is larger than X. 

 lineatus, with the club of the antennae larger and more 

 widened towards the front ; the rugosities of the thorax are 

 coarser, and the pubescence thicker and longer ; the punctures 

 of the striae of the elytra deeper, but not so sharp-edged, and 

 the lineation blacker and more defined. 



95. ToMicus quadridens, Hartig; Ratz., Forstin. Kaf. 



193; D. Sharp, Proc. Ent. Soc. 19 Nov. 1866. 

 Found at Rannoch. Mr. Sharp thinks it will prove a 

 distinct species from T. bidens, of which Ratzeburg consi- 

 dered it a remarkable variety. 



96. ToMicus Lichtensteinii, Ratz., Redt. 790 (De 



Mars.); G. R. Crotch, Cat. Brit. Col. ed. 2. 

 Mr. Crotch informs me that he now considers this species 

 to have been erroneously brought forward by him, and that 



