HEY : LIST OF YORKSHIRE COLEOPTERA. 35 



Brychius elevatus Panz. Frequent in clear gravelly streams. 



1. S.E.— Beverley, in the R. Hull {W.C.H.). 



2. N.E. — Scarborough (i?. Lmuson). 



5. S.W. — Hebden Bridge Watercourse {S. Gibson in 

 Loudon's Mag., 1832); Wakefield district and Mirfield 

 {E. B. Wriggiesworth). 



D YTISCIDyE. 



HYDROPORINA. 



Hyphydrus ovatus L. This is a very abundant insect in the 

 central and eastern parts of the county, and I am surprised 

 not to have met with a single record of its capture in the 

 South-West. 



1. S.E.— Market Weighton {W.C.H.). 



2. N.E. — Scarborough (i?. Z<a:7m<?;?); Marton, 'common, 

 the males in the proportion of five to one ' (Z. Rudd in 

 Steph., III., June 15th, 1829). 



3. N.W. — Studley {E. A. Waterhouse). 



4. Central. — Askham Bog, in profusion, and in other 

 places round York ( JV.C.H.). 



Hydroporus reticulatus F. A local species, abundant where 

 it occurs. 



2. N.E. — Scarborough (i?. Lawson). 



4. Central. — Abundant in a pond two miles north of 

 York {W.C.H.) ; River Foss, April {H. Hutchifison) ; Selby 

 {W.C.H.). 



5. S.W. — Wakefield district {E. B. Wriggiesworth). 

 Hydroporus inaequalis F. Fairly well distributed, and 



sometimes abundant. 



2. N.E. — Scarborough {R. Lawson); Marton, scarce 

 (Z. Rudd, Steph., Ill, June i5th,i827) ; Gormire {W.C.H.). 



4. Central. — Askham Bog, very abundant in spring 

 {W.C.H.) ; Strensall and Selby ( W.C.H.). 



5. S.W. — Meanwood Valley, near the Seven Arches 

 {H. Hewetson) ; Wakefield and Castleford {E.B. W.). 



