FAUNA AND FLORA OF NORFOLK : COLEOPTERA. 
417 
abundantly distinct, as well in facies and elytral 
sculpture as in the form of the cedeaym. The 
distinctive characters of the British species of 
Gyrinus are laid down by the writer in a paper 
in the ‘Entomologist,’ vol. xxiii. No. 323, p. 105 
(April, 1890). 
Oreotochilus villosus, Mull. Not uncommon ; Back Iliver, &c. j 
usually nocturnal and found lurking by day in 
cracks of river banks, &c., but I once found it 
very lively in the day-time in a small stream on 
Swardeston Common. 
Hydrophilid.e. 
Hydrophilus piceus, Linn. Homing (Wigham); I have heard of 
its occurrence at Brundall; Waxhara (Champion); 
“North Denes in ditches, rare” (l’agct). 
Hydrous caraboides, Linn. Burrell’s list ; “ Karo ” (Paget). 
Hydhorius fuscipes, Linn. Very common. 
picicrus, Thoms. Not quite so widely distributed as 
the last. When 1 collected in the marsh ditches at 
Thorpe, Whitlingham, and Postwick, some fifteen 
years back, this species was the only one met with. 
Cymbiodyta marginellus, Fab. Horning; common. 
Philbydrus testaceus, Fab. Norwich ; Horning ; not uncommon. 
maritimus, Th. Cley ; Hunstanton (Fowler). 
nigricans, Zett. Common and widely distributed. 
melanocephalus, 01. Brandon, May, 1889, one 
example. 
minutus, Fab. Brandon, May, 1S88; St. Faith’s, 
May, 1890; scarce. 
coarctatus, Gred. Common. 
Enoch rus bicolor, Payk. Very local. I took my first specimen 
at Thorpe in May, 1876, and did not see the 
species again alive until May, 1890, when I took 
several specimens from a pond on Wretham Heath. 
Waxham (Champion). 
He loch ares li 
„ p 
Both species are equally 
common and widely distri- 
buted with us. 
u H 2 
