HEY ; LIST OF YORKSHIRE COLEOPTERA. 37 



5. S.W. — Hebden Bridge Watercourse, 1831 {Sam. 

 Gibson ; see Loudon^s Mag. N. ff., 1832, v. 555)- 

 Hydroporus pictus F. This little gem is abundant in ditches 

 and ponds in many localities, especially so round York. 



1. S.E.— Beverley (JJ^C^); Brough (^.^. f^K). 



2. N.E. — Scarborough (jff.ZflZ£/j-^«); Coatham( W. C.H.); 

 Marton (Z. Rudd). 



4. Central. — York, Haxby, Copmanthorpe, Selby 

 {W.C.B.). 



5. S.W, — Nostell, Royston {E. B. Wrigglesworth). 



Hydroporus granularis L. Another of the local species 

 found in that portion of Askham Bog known as Chandler's 

 Whin. Their haunt is some very old brickpits. This 

 species appears as early as March i8th (see E. M. M., 

 May 1868, iv. 283). 



4. Central. — Askham Bog {W. Hey, Zool., 1857, xv. 

 741 1 ; also H. Hutchinson, E. M. M., June 1872, ix. 12). 

 Very abundant there in April ( W.C.H.). 



Hydroporus lepidus 01. A species almost certain to be 

 more widely found, as investigations increase. 

 1. S.E.— Beverley (J'KC.i^:). 



Hydroporus rivalis Gyll. Appears to be very scarce, accord- 

 ing to my experience. 



1. S.E.— Driffield, October, 1887 {W.C.H.). 



3. N.W.— Ilkley {E. B. Wrigglesworth). 

 Hydroporus septentrionaMs Gyll. Very local. 



2. N.E. — Scarborough {R. Lawson). 



3. N.W.— Studley {E. A. Waterhouse, 1879). • 

 Hydroporus davisii Curt. This species was first taken in 



Britain ' in a millstream at Hebden Bridge in the spring ' 

 by Mr. A. H. Davis, F.L.S., after whom it was named by 

 Curtis (vide Curtis, Brit. Ent., 183 1, viii. 343). It was 

 taken again in the next year (1832) in the same locality 

 by Mr. Sam. Gibson {yidiQ Loudo?i's Mag., 1832, p. 555 ; 



