17 



roundness of its body, by the elytra being scarcely enlarged behind the shoulders, and by 

 the smooth interstices of the thorax." 



M. Duval is probably correct in supposing M. discolor, Rosenh., to be merely an imma- 

 ture condition of M. rnticnlUs, Duv. 



STEPHENS 3. F.i 



Illustrations of British Entomology, Mandib. ii. p. 185 (1829). 



Clypeaster, (Ander.) n. gen. 



,, cassidioides, Marsh. 



Orthoperus. n. gen. 

 ,, picea. 



,, truncatus. 



,, nigricans. 



,, atomus. 



Sericoderus, u. gen. 



,, thoracicus. 



Corylophus, n. gen. Manual Brit. Col. 

 The generic names given by Mr. Stephens have been universally accepted by sub- 

 sequent writers more from courtesy to their author than from any inherent validity ; indeed, 

 the claim of priority is the only plea that can be urged iu their favour, for it is impossible 

 to say that they were described by him. But, although his genera have thus been allowed to 

 stand, a similar concession could not be extended to his species, for even conjecture would 

 fail to identify any of them. The term Cori/lopltus was substituted by Mr. Stephens in his 

 ' Manual ' for Clypeaster, Latr.* 



SCHWARTZ (H.) 



Proc. American Philosophical Soc. xvii. p. 356 (1878). 



Mr. Schwartz, in this paper, has very accurately and distinctly described two new 

 species, viz. .?. mnUimiiii and .S'. sphndens, and very kindly sent types of both species to me, 

 from which I have made my own descriptions. I have placed both species in the genus 

 Artkrolips, since then* antennm, when immersed in Canada balsam, exhibit only ten 

 articulations. 



THOMSON (C. G.) 



Skaud. Col. iv. p. 118 (1863). 

 Sacium corticinum. 



The only type of S. corticinum which I have seen was in the collection of M. S. de 

 Marseul ; this specimen distinctly exhibited 11-jointed antennje, although in size and 

 colour it much resembled Artkrolips obscurus. The species is carefully and accurately 

 described by M. Thomson. 



WANKOWICZ (M.) 



Annales de la Soc. Ent. de France, 1865, p. 299. 



Orthoperus punctatus. 

 Kluki. 



These two species are shortly but very distinctly described. 



* It appears to have been quite overlooked by authors that the alteration of this generic name 

 was made by Stephens in his ' Illustrations of British Entomologj-,' Mandib. vol. v. (Supplement), 

 p. 405 (1832), seven years prior to the date of his ' Manual of British Coleoptera.' — 0. E. J. 



