158 Mr. D. Sharp on 



The synonymy of this species is a rather difficult 

 question. The oldest name that certainly applies to it is 

 that given by Dejean in his collection as a var. of C. rusticus, 

 and formally published by Mulsant in 1840. G. polonicus, 

 Motsch. (1845), is probably this species. As regards Calli- 

 dium triste, Fabr., Mant. Ins., p. 154, the brief description 

 gives no special reason for supposing it to be a Criocephalus, 

 except that he likens it to C. rusticus. The G. lugubre, 

 Gmelin, is simply an error ; he copies Fabricius' descrip- 

 tion of G. triste, and, as he gives no reason for changing the 

 name, he probably merely wrote " lugubre " in error for 

 G. triste. 



The following is therefore the only synonymy for which 

 I can venture to take any responsibility. 



Criocephalus rusticus, var. ferus, Dej., Cat. Coll. (not 

 described) ; Mulsant, Long. France, ed. I, p. 4. 



? ? G. coriaceus, Motsch, Bull. Mosc, 1845, i, p. 89. 



? G. polonicus, Motsch., I.e., p. 88. 



G. epibata, Schiodte, Kroyer Tidskr. (3), ii, p. 521 (1864). 



G. ferus, Kraatz, Berlin, ent. Zeitschr., 1863, p. 107, and op. 

 cit., 1872, p. 319 ; Bedel, Faune Col. Seine, v, pp. 23 

 and 69. 



Criocephalus nubilus, Lee. 



Criocephalus nubilus, Leconte, J. Ac. Philad., ser. 2, II, 

 p. 36. 



This species has strong punctuation on the elytra like 

 C. rusticus ; the tarsi have moderate lobes like G. pinetorum. 

 The labrum, I believe, brings the species in the G. ferus 

 group. The sculpture of the gular area is coarse and deep, 

 but occupies only a small area. The eyes bear long setce. 

 The prosternum is slightly convex in front. 



Hab. N. America. 



N.B. — The North American Criocephalus require a 

 thorough revision, for which the material does not exist 

 in this country, so far as I know. Leconte, new species 

 North American Coleoptera, Part II, 1873, gives no less 

 than seven species as North American. He divides the 

 genus into two groups : (1) tarsi feebly lobed, G. productus, 

 G. agrestis and G. asperatns ; . (2) tarsi deeply divided with 

 long lobes, C. montanus, n. sp., G. obsoletus, C. nubilus, 

 C. australis. The matter stands practically as he thus left 



