THE NEIGHBOURHOOD OF EDINBURGH. 475 
Gen. Hydrobius. 
H. fuscipes, Stepli. Dytis.Juscipes^ Linn. Hydroph, fus- 
cipes, Marsh. 
Ponds and ditches, common. Duddingston Loch. Braid 
Hill marshes, &c. April — August. 
H. orbicularis, Samou, Hyd. orbicularis^ Fab. Marsh. 
Seemingly a scarce species. Ditches at the west end of 
Duddingston Loch, sparingly. 
H. bipunctatus, Steph. Hyd. hipunctatus^ Fabr. Marsh. 
Duddingston Loch, and elsewhere, frequent. April — 
June. 
H. striatulus, Steph. 
I have repeatedly taken, in company with the preceding, 
an insect agreeing well with the description that is given of 
this species, but it seems to be nothing more than a variety 
of H. bipunctatus, and not entitled to specific distinction. 
H. minutus, Samou. Hyd, minutus, Fab. Marsh, 
Ditches at Duddington. Braid marshes. 
Fam. SPHiERIDIIDiE. 
Gen. Cercyon. 
C. ruficorne, Steph. 
Frequent. Shore at Portobello, April and May. 
C. littorale, Steph. Hyd. obscurus. Fab. 
In considerable plenty on the shore at Figget Whins, in 
April and May. 
C. dilatatum, Steph. 
With the preceding, not rare* 
