172 TENEBRIONID^. 



The following characters will serve to separate more easily C. vittata,. 

 Vill., and C. nobilis, L. (Bedel. Faun. Col. du Bassin de la Seine, v. 211 ) : 



I. Facial grooves forming a V of which the branches 



commence at the insei-tion of the antennae ; 

 thorax scarcely less shiny than the elytra, 

 convex behind ...... C. vittata, Vill. 



II. Facial grooves almost forming a Y, their two 



branches in front uniting on the median line ; 

 thorax very dull, not convex behind . . C. xobilis, L. 



Mr. DoUman and Mr. Donisthorj^e took several specimens of a form 

 of C. nobilis at St. Helens, I, of W., in Augu.st 1909, on Chenopodium, 

 marked with a beautiful crim.'on horse-shoe on the elytra (Ent. Rec. 

 1909, p. 275). 



TENEBRIONID^. 



ALPHITOPHAGUS, Stephens. 

 A. bifasciatus, Say (Journ. Ac. Phil. 1823, 268); A. qvadrijmsti'- 

 latus, Steph. (lUust. Brit. v. 32, 12). Say's name has the priority of 

 Stephens' by nine years and must be adopted ; it was referi-ed doubtfully 

 by its author to the genus Dia'peris ; the insect, as IMr. Champion says 

 (Ent. Mo. iVIag. xxxi. (2 Ser. vi.) 1895, 283), is no doubt of American 

 origin, like Gnathocerus ; Latheticus, Tribolium, Tenehr io, AlpMtohius anA. 

 Palorus are almost certainly of Eastern origin, 



PENTAPHYLLUS, Latreille. 



Pentaphyllus, Latr. (Cuv. Regn. anim. ed. 2, p. 30; Lac. Gen. des 

 Col. V. 312 ; Jacq. Duv. iii. 28, pt. 8, f. 39). Oblong-ovate, moderately 

 convex. Head short, narrowed in front, almost triangular, eyes moderate, 

 widely separated underneath ; maxillas with the internal lobe small 

 and narrow, simple at the apex, maxillary palpi with the last joint 

 rather large, thicker than the preceding. Subovate, narrowed towards 

 apex, truncate at the tip ; antenrse rather short, with a five-jointed 

 club ; thorax transverse, bordered at the sides, feebly subsinuate at the 

 base ; elytra with the epipleura entire or a]mo.st entire ; pronotum 

 extended in a strong projection behind the anterior coxse, which are 

 subglobose ; legs slender and linear, tarsi elongate, the posterior with 

 the first joint a little longer than the two following united. 



Perttwpliyllus is easily separated from Liajieris, ScapJddema, 

 Platydema, ifcc, by the abrupt five-jointed club, from which it derives 

 its name : it has been a source of considerable difliculty to authors, some 

 of whom have referred it to Myceptopihagvs and others to HyjwpiJddeus. 



P. testaceus, Hellw. (Schneid. Neu. Mag. i. 4, 1792, p. 400). 

 Te.staceous, sparingly clothed on the upper surface with fine hairs; 

 thorax distinctly punctured ; scutellum rounded, posteriorly broader 

 than long; elytra at base as broad as the base of thorax, rounded ai d 

 narrowed behind; underside black; anteiior coxse globulose ; legs 

 reddish-testaceous. L. 2| mm. 



