ST. (STAURODEK'US) BICOLOE. 245 



(3) nigrina Fieb.--the dark form. 



Burr says there are in the Hope Collection in Oxford 

 (with many others imlabelled) one male labelled " cru- 

 cigera" and another male " Isle of Purbeck, 1830, 

 L. rubicunda' [this apparently = purpurascens Pieb.]. 

 Rubicunda has usually been referred to 0. viridulus of 

 which (as mentioned on p. 239) a reddish form is 

 sometimes taken. A strikingly coloured form, longi- 

 tudinalis Luc., has the dorsal surface including the 

 elytra nearly black, while the legs and sides are 

 yellow. It occurred in 1918 at Arthog in Merioneth- 

 shire, and in the Xew Forest. 



DATE. S. bicolor mav be found as an imago for a 



/ o 



longer period than the rest of our grasshoppers 

 belonging to the Acridiodea. It begins to appear in 

 June, and continues through July, August, September, 

 and October, even into November. November the ninth 

 is the latest date on which I have met with the species, 

 the locality being at the Black Pond on Esher Common 



t/ O 



in Surrey. 



HABITS, ETC.- -So common is this grasshopper with us 

 that it is not easy to give the kind of locality in which 

 it may be sought. It does not like woods, but prefers 

 open places, and such as are fairly dry ; consequently 

 it is often found on sandhills. It sometimes rests on 

 walls or pailings. Morley found it on a first storey 

 window-sill ! 



DISTRIBUTION.- -Common in Europe (Lapland, Norway, 

 Sweden, Denmark, the British Isles, Holland, Belgium, 

 France, Spain, Portugal, Switzerland, Germany, 

 Austria) ; found also in Asia (Siberia, Mongolia, Corea, 

 Japan. Asia Minor, Burma), and North Africa. 



BRITISH LOCALITIES. 



S. bicolor may fairly be looked upon as the British grass- 

 hopper, and may safely be said to occur throughout the 

 British Isles. There are still, however, nine English counties 

 for which I have no records. My list is as follows : 



ENGLAND. Bedfordshire : Near Sharnbrook (Zrwcas) . Berks : 



