444 
FAUNA AND FLORA OF NORFOLK : COLEOFTERA. 
Hydroporus pubescens, Gyll. Very common. 
,, lituratus, Fab. Not uncommon in stagnant 
waters. 
,, planus, Fab. Very common. 
,, gyllenhali, Schiod. Common. 
„ neglectus, Schaum. Stratton Strawless, September, 
1875. 
„ scalesianus, Steph. Stephens writing in 1828 says : 
“ Captured by the late E Scales, Esq. in Norfolk.” 
At the present day this species is only found at 
Askham Bog, near York. 
„ angustatus, Sturm. Not uncommon. 
,, umbrosus, Gyll. Horning; Woodbastwick ; not 
uncommon ; Waxham (Champion). 
,, vittula, Er. Thorpe, April, 1876 ; Felthorpe, April, 
1882 ; Horning (Fowler). 
„ incognitus, Sharp. Ditch by Arminghall Wood, 
April, 1889. 
„ palustris, Linn. Very common. 
,, erythrocephalus, Linn. Common. 
,, rufifrons, Duft. Brandon, May, 1889 ; Norfolk 
Fens (Fowler). 
,, dorsalis, Fab. Widely distributed, but not common. 
,, ferrugineus, Steph. Horning, June, 1888, one 
example. 
,, oblongus, Steph. Brandon, May, 1889, one example; 
Horning (Fowler). 
Agabus paludosus, Fab. Eaton Common, February, 1891, one 
example; Aylsham (Wood). 
,, uliginosus, Linn. Horning, March 5th, 1840 (Brown) ; 
“ Stagnant water in marshes between Yarmouth 
and Caister, common ” (Paget). This insect is 
the Dytiscus hybneri of Burrell’s list. 
,, affinis, Payk. Brandon, May, 1889. The only other 
British locality for this species is near Dumfries. 
„ unguicularis, Thoms. Horning, March 3rd, 1838, 
March 10th, 1840 (Brown); Waxham (Champion). 
,, dtdymus, 01., Burrell’s list. Mousehold Heath, May, 
1890 (Thouloss); Aylsham (Wood). 
