24 MADEIRAN COLEOPTERA. 
ticwm, though much more rarely. It is the representative of the 
B, tibiale of higher latitudes, of which it may possibly be but a geo- 
graphical state. 
70. Bembidium elongatum. 
Bembidium elongatum, Dej., Spee. des Col. vy. 148 (1831). 
, Heer, Fna Col. Helv. 134 (1841). 
—— ——,, Woll., Ins. Mad. 79 (1854). 


Inhabits Madeira proper, occurring in damp spots and by the 
edges of the streams, at intermediate and lofty elevations. 
(Subgenus Lopha, Meg.) 
71. Bembidium Schmidtii. 
Bembidium Schmidtii, Woll., Ins. Mad. 80 (1854). 
Inhabits Madeiva and Porto Santo, attaining its maximum by the 
edges of the streams of a high elevation,—though descending, occa- 
sionally, on the northern side of both islands to spots of a com- 
paratively low altitude. It is the representative of the European 
B. callosum, Kiist., of which it may perhaps be an extreme local 
modification. It occurs also in the Canarian Group, a specimen 
having been lately forwarded to me by Prof. Heer of Zurich which 
was collected by M. Hartung in Teneriffe. 
Sectio II]. HYDRADEPHAGA. 
Fam. 2. DYTISCID. 
Genus 26. COLYMBETES. 
Clairville, Ent. Helv. ii. 198 (1806). 
72. Colymbetes. Lanio. 
Dytiscus Lanio, Fab., Ent. Syst. i. 190 (1792). 
, Oliv., Ent. iii. 40. 19. pl. 2. f. 9 (1795). 
Colymbetes Lowei, G. R. Gray, Griff. A. K. Ins. i. pl. 32. f. 2 (1830). 
Lanio, Awbé, Hydrocanth. 221 (1838). 
, Woll., Ins. Mad. 82 (1854). 




Inhabits Madeira proper, occurring in the streams of intermediate 
and lofty altitudes. 
