Yorkshire Hemiptera during 1929 - 1932 . 
95 
•j ■ Plesiodema pinetellum Zett. A northern species occurring on Scots Fir, 
which seems to be extending its range southwards. Sandburn 
Woods, June, 1930 (M.L.T.) ; Allerthorpe Common, June, 1930 
( The Naturalist , 1932, p. 86.) 
]Psallus obscurellus Fall. Also found on Scots Fir, Allerthorpe Common, 
June, 1930. 
Atractotomus magnicornis Fall. Another species found on Scots Fir, 
Houghton Woods, Osmotherley, August, 1931 ; Winterburn, 
August, 1932. 
Plagiognathus albipennis Fall. Forge Valley, August, 1922 (W.J.F.). 
Dipsocoris ( Cryptostemma ) alienum H.S. Very plentiful in some places, 
under stones by the side of streams, chiefly in upland districts. 
Deep Dale (Barnard Castle), April, 1930, 65.* Ling Ghyll 
(Horton), June, 1930. 64.* 
Acanthia (Saida) saltatoria L . Allerthorpe, 1928 (W.J.F.), Pickering, 
May, 1929. 
Chartoscirta (S .) cincta H.S. Cleveland (M.L.T. ), Emswell, August, 
1929. 
\Corixa dentipes Thoms. Hull, September, 1917 (G.B.W.). (See The 
Naturalist, 1929, p. 207.) 
C. affinis Leach. Malham, March, 1929. 
Sigara ( C .) hier oglyphica Duf. Allerthorpe, November, 1929 (W.J.F.). 
fS. limitata Fieb. Barmby Moor, October, 1929 (W.J.F.). 
S. striata L. Malham, March, 1929 ; Driffield, August, 1929. 
S. fallenii Fieb. Malham, March, 1929. 
JS. distincta Fieb. Allerthorpe, June, 1921 (W.J.F.). 
Callicorixa prceusta Fieb. Kirkby Fell, March, 1929. 
Glenocorixa carinata Sahib. Kirkby Fell, March, 1929. 
Homoptera. 
Triecphora vulnerata Illig. Ecclesall Woods (Sheffield), local, but very 
plentiful in places, among grass and on bracken. 
Centrotus cornutus L. Grass Woods (Grassington ) . 
Ulopa reticulata Fab. Sandburn Woods, beneath heather. 
Megophthalmus scanicus Fall. Ruston Parva, August, 1929. 
Cicadella ( T ettigonia ) viridis L. Locally plentiful among damp vegeta- 
tion, King’s Mill (Driffield), August, 1929. 
• \Idiocerus tremulcs Esel. On the moors near Langsett (W. R. Barker, 
-fide E. G. Bayford). 
I. fulgidus Fab. Allerthorpe Common, August, 1932. 
I. lituratus Fall. Allerthorpe Common, 1932. Quite plentiful. 
Macropsis impura Boh. On Salix repens, plentiful, Allerthorpe 
Common, 1930, Sandburn Woods, June, 1929. 
Agallia venosa Fall. Ruston Parva, August, 1929. 
f Graphocrcerus ventralis Fail. Plentiful among the damp vegetation, by 
the lake, Renishaw Park (near Sheffield), June, 1929. 
Deltocephalus thenii Edw. Osmotherley, August, 1931. 62*. 
JD. normani Scott. Also at Osmotherley, August, 1931. A species 
very much like the last and liable to be confused with it. 
D. socialis Flor. Among grass, Coredale, August, 1932. 64*. 
fD. subulicola Curt. North-east Coasts (M.L.T.). Among sand-sedge. 
62* . 
Euscelis ( Athysanus ) lineolatus Brulle. Acklam (M.L.T.). 62*. 
Ruston Parva. 
E. obsoletus var. piceus Scott. Osmotherley, August, 1931. 
Limotettix quadrinotata Fab. Ruston Parva, August, 1929. 
L. persimilis Edw. Ruston Parva. 
L. nigricornis Sahl. Emswell, August, 1929. 61*. 
Drylix (L.) striola Fall. Eston Marshes (M.L.T.). 
Stictocoris flaveola Boh. Bishop Wood (Selby). July, 1931. 61*. 
1933 April 1 
