Harvestmen and Pseudoscorpions of Yorkshire. 157 
may possibly be eventually found in our area. Some conceal 
themselves beneath the bark of old, dead or dying oaks and 
beeches and old willows, even in some cases if close fitting and 
difficult to detach. Chernes cyrneus L. Koch, C. wideri C. L. 
Koch, C. chyzert Tom., C. cimicoides Fabr. Some cling to 
the legs of flies—Chernes godfreyi Kew., C. chyzeri Tom. ; such 
may generally be obtained without labour or special search 
by exposing flypapers (the old-fashioned sheets are most 
convenient), in suitable places, shops, stables and even houses 
near by. One, C. cancroides Linn., frequents old buildings, 
corn mills, bakeries, stables, lofts; in Lancashire taken from 
the débris of an old haystack. Others find shelter in manure 
and refuse heaps—C. god/reyi Kew and C. subruber Sim. ; 
from the former they may be obtained by confining flies, from 
which a wing has been removed to prevent flight, under a bell 
glass placed on the heap. If present, they will in time attach 
themselves to the legs of the flies. At least this method has 
proved successful abroad. C. cvryneus L. Koch and C. widert 
C. L. Koch have been met with in Sherwood Forest ; the latter 
also and the remainder in Lancashire. 
Sd. 
CLASS. eA ACH NDA: 
ORDER: CHERNETIDEA. 
SUB-ORDER: HEMICTENODACTYLI Batz. 
Group l= yes 4: 
Fam.: CHTHONIIDE. 
Gen. CHTHONIUS C. Koch. 
Gr RnAye Le Koch. 
Common and abundant in the British Isles and on the 
Continent. In a variety of situations; under stones, 
amongst fallen leaves and débris in woods, in the open, 
in farm buildings, under pieces of wood, etc., in cellars 
of houses, chalk pits, old quarries, etc. 
Ist Record: H. Wilson, Aysgarth, April, 1903 (H. W. 
Kew), The Naturalist, August, 1902. 
V.C. 61.—-Tansterne near Aldborough, under sticks, T.P. 
(The Naturalist, 1903, p. 460); Leconfield, H.M.F. : 
Bridlington, H.C.D. ; Sand-le-Mere, South Cave, Skidby 
Chalk-pits, Spurn, Humber Bank East and West of 
Hull, Saltend Common, Hessle Cliffs, Whitecross (Leven), 
Cottingham, Hedon, Welwick, T.S.; Hesslewood, E.A.P. 
1916 May 1. ; 
