46 YORKSHIRE NATURALISTS' UNION. 



Agabus chalconotus Panz. Not uncommon. 



4. Central.— York, Strensall ( W.C.H.). 



5. S.W.— Wakefield {E.B.W.); Hebden Bridge, 1831 

 {S. Gibson). 



(?) Agabus congener Thun. A record from Askham Bog 

 {E. M, M., June 1872, ix. 12) is almost certainly erroneous. 



Agabus sturmii Gyll. Common and general. 



1. S.E.— Driffield (?KC.i^). 



2. N.E. — Coatham Marsh, in abundance (JV.C.If.) ; 

 Scarborough (i?. Lawson). 



4. Central. — York, Selby, Doncaster, &c. (JV.C.If.). 



5. S.W.— Walton (^.^. IV.); HebdenBridge, 1831 (S. G.) 

 Agabus uliginosus L. It is not at all probable that any of 



the Yorkshire localities given for this species are correct 

 except Askham Bog. There it occurs very irregularly ; 

 after heavy rains in autumn, it is occasionally very plenti- 

 ful in the shallow floodings, but in the deeper ponds it is 

 only now and then that a specimen turns up. It nearly 

 always occurs in company with Hydroporus rufifrons, and 

 with it is found throughout the winter months. The 

 interesting dull form of the female (confined, I believe, to 

 Britain) is frequent in Askham Bog. 



4. Central. — Askham Bog, 1856 {W.JIey, Zool., 1857, 

 XV. 5411); also in 1868 {W. Hey, E. M. M., May 1868, 

 iv. 283; and in plenty in autumn, 1881 (W.C.H.). 

 Agabus paludosus F. Very local and apparently scarce. 

 Archdeacon Hey spoke of it as not uncommon in York- 

 shire in former years. 



2. N.E. — Scarborough {R. Lawsoti). 



4. Central. — Waterlane ditch, near York {IV.C.R.); 

 Askham Bog {H. Hutchinson). 

 Agabus nitidus F. {=fontinalis Steph. =biguttatus 01.). 

 Another scarce species. It has been recorded from Blue- 

 bank, near Sleights, 1879 {H. Pollard, Nat., September, 

 1879, v. 20), but the record perhaps requires confirmation. 



Trans. Y.N.U., 1885 (pub. 1888). Series J). Vol. 3. 



