-M---V XL >r^™L. riMK_>.>^ j^iJi^WH- >^i_..-oc^>:*r:L,., . V ^ I .j^j-L-*s^ M"^*^ S >r^ ^^^r ^;!-^ -^ ^^. t^^yj-.'.^. 



^VJLTi^yrf^i^^-7'jf^;^i^i^v^i^;^o*^^ x->v..-g^r .. .- ^jj.^.. .:.- .^^ 



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84 



YORKSHIRE NATURALISTS' UNION. 



5. S.W.— Halifax (^. 7/: Baznes, Steph. III.) 



Stenus biguttatus T.. Of this large and well-defmed genus, 

 thirty-five species have been recorded for Yorkshire. The 

 comparative ease with wliich tlie species are identified 

 probably explains the number of records. The present 

 species appears to be confined to the vale of Yoi'k, where it 

 is local and scarce. 



4. Central VALLKY.—Selby, Strensall iW.C.H.). 



Stenus bipunctatus Ya\ A southern species only recently 

 detected in Yorkshire. 



4. Cen'J'ral Valley. — Askham Bog, one example 

 {W,C.IL), 





I 



1 



Stenus guttula Miill. Perhaps the most general of the 

 spotted species, as it is usually to be found where suitable 

 localities occur. 



1. S.E.— Bridlington Cliffs {W.C.IL). 



2. N.E. — West Ayton, Langdale End, Redcar ( IV.C.H.); 



Saltburn {M. L. Thompson) ; Marton {Rev. G. T. Riidd). 



3. N.W. — Leyburn. 



4. Central Valley. — Askham, Cattal, Boston Spa 

 {W.C.IL). 



Stenus bimaculatus Gyll. Locally abundant. 



1. S.E.— Hornsea ( /^-^ K, Bissill.'ZooL, 1859). 



2. N.E.— Marton {Rei'. G. T, Rudd) ', Forge Valley 

 {IKC.FJ.). 



4. Central Valley.— York, sometimes abounds in 

 moss in winter ( W.C.IR). 



5. S.W.— Hebden Bridge {E. B. Wrigglesioorth). 



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/ 



I 



\ 



Trans, Y.N.U,, 1894 (piib, TS96)- Sei'lcs D. Vol. 3 



f 



