THE GENUS BEMBIDIUM, LAT., IN CUMBERLAND. 85 



however, are much better represented in the north than in the south, 

 one of the most interesting of such being Bembidium. Of this genus, 

 34 species have now been taken in Cumberland, of which I have 

 rnyself captured all but two during the few years in which I have 

 collected beetles. Although many of these are very local in distribu- 

 tion, with few exceptions they may be captured freely in their 

 particular haunts. For the most part, the species here enumerated 

 occur near water, a striking divergence from this habit being shown 

 by B. nigricorne which I have only found on high-lying moors. The 

 species are most abundant in spring and early summer. After June, 

 they, as a rule, become scarcer, but some, at any rate, appear again 

 in September and October. Few beetles are easier to find than 

 Bembidia, the simple plans of dashing water over the shingle beds by 

 sides of streams, and of " treading " the mudbanks on salt-marshes 

 being sufficient to flush them from their hiding-places. When the sun 

 is hot they are very active, some, indeed, taking readily to the wing. 



B. rufescens, Guer. — Abundant in flood-refuse in autumn and early 

 winter. Seldom noticed in spring or summer. 



B. quinquestr latum, Gyll. — Apparently rare here, as I only know of 

 three specimens, one taken by Mr. Routledge and two by Mr. Britten. 



/>'. nbtitxuw, Stm. — Moderately common in moss and flood refuse. 



B. guttula, F. — Very common both in dry and damp situations. 



B. manner heimi, Sahl. — Frequently in company with the last. 

 Very common in tidal rubbish on the Solway marshes. 



B. biguttatum, F. — Common in flood-refuse, also on mud at the 

 edges of ponds and ditches. 



B. aeneum., Germ. — Occasionally taken on the banks of streams. 

 On the extensive salt-marshes at the estuary of the Eden it is 

 abundant, occurring on the muddy sides of creeks and drains. 



B. doris, Panz. — Local, but abundant on the edges of ponds 

 among the Silloth sandhills, also near a boggy pond in Orton Woods, 

 Carlisle, and on the margins of Whin's Pond, Penrith. 



B. minimum, F. — Exclusively maritime. Occurs all along the 

 Solway, on mudbanks and sandy beaches. 



B. norm-annum-, Dej. — Very local. I have only found it on mud- 

 banks on Skinburness Marsh, where it is common. According to 

 Fowler (I hit. ( 'oleoptera, i., p. 108) it appears only to be known in the 

 south and south-east of England. 



B. schuppeli, Dej. — Common on the banks of the River Irthing, 

 and also of the River Eden, in one or two places. The first British 

 examples were taken on the first-named river by the late T. J. Bold. 



B. lampros, Herbst. — Common on roads, pathways, dry hedge- 

 banks, etc. ; var. relox, Er., I have only taken on Burgh Marsh. 



B. nigricorne, Gyll. — Locally abundant in heathy, elevated 

 districts ; Wan Fell, at an elevation of 700 feet ; Cumrew Fell at 

 about twice that elevation. Commonest on sunny days in April and 

 September. On dull days hides in cracks in the dry ground, but may 

 be disturbed by tobacco smoke. 



11. tibiale, Duft.— One of the most abundant river-side species, 

 occurring on every stream I have visited. 



B. atrocaeruleum, Steph. — Almost equally common with the 

 preceding. 



