COLEOPTERA. 317 



elevated contour joined to each other on the elytra; tarsi bluish- 

 black; tibiae sometimes of the latter colour and sometimes rus- 

 set. These latter individuals have been considered as a dis- 

 tinct species cupreus by MM. Megerle and Dejean. It is rare 

 in the environs of Paris, but common in other parts of France, 

 and in Germany, Sweden, Sec. 



E. riparius, Fab., Clairv., Entom., Helv., II, xxv, A, a; Cicin- 

 dela riparia, L. ; Elaphrus paludosus, Oliv., Col. II, 34, 1, 4, a, 

 b; Panz., Faun. Insect. Germ, xx, 1. About a third less than 

 the uliginosus; above, very finely dotted with dead-cupreous, 

 mixed with green; circular green impressions with papillated 

 centres arranged in four lines, and a polished, shining cupreous 

 spot on each elytron ar the suture. Common in the environs 

 of Paris(l). 

 Sometimes the labrum is almost semicircular and rounded ante- 

 riorly; the exterior palpi terminate by a sub-oval joint, narrowed 

 into a point at the extremity. The mandibles project but little 

 beyond the labrum. Tarsi identical in both sexes. 



The anterior extremity of the head forms a small snout. The 

 body is plane above, and the thorax trapezoidal, almost as wide as 

 the head, and slightly narrowed posteriorly. 



Notiophilus, Dumer. Elaphrus, Fab. Oliv. (2) 



Our second general division of this tribe, or that of the Subuli- 

 palpi, is distinguished from the preceding one by the form of the 

 exterior palpi, of which the penultimate and obconical joint is united 

 to the following, forming with it a common oval or fusiform body, 



(1) For the other species, see Dej. Spec. II, p. 268, et seq. 



(2) Cicindela aquatica, L. ; Elaphrus aquaticus, Fab.; Panz., Faun. Insect. Germ., 

 XX, 3; Elaphrus biguttatus, Fab., and to which Count Dejean refers his C. semi- 

 punctatus. See Spec. II, p. 276, et seq. 



This division, in a natural series, should probably be placed directly after that 

 of the Carabici Quadrumani. In the genus Masoreus, Dejean, (p. 420), the two 

 anterior tarsi of the males resemble those of Harpali; the emargination of the 

 mentum is destitute of a tooth as in Stenolophus, Acupalpus, 8cc. ; but the maxillary 

 palpi terminate nearly as in Bembidion,- the two last joints are united and form 

 one body, the penultimate merely being rather shorter than the last and obconical, 

 and the latter, cylindrical and truncated. 



The genera Pogonus and Cardiaderus of Count Dejean appear to us to be con- 

 nected with the Arnara of Bonelli, notwithstanding the difference in their tarsi. 

 From what we observe in the Cicindeletze and the Carabici Grandipalpi, evidently 

 natural divisions, it may be seen that the tarsi vary according to the sex, and that 

 if we chiefly depend on characters drawn from these parts, we may form sections, 

 methodical it is true, but which are in direct opposition to the natural order. 



