1875, 91 



ON CERTAIN BEITISH IIEMIPTERA-ROMOPTERA. 



BY JOHN SCOTT. 

 fcontuined from page 25.J 



Genus THAMXOTETTIX. 

 Thamnotettix nigeicoenis, J. SaLlberg. 



Orange-yellow or slightly greenish. 



Crown with four black spots placed as follows : — two, large, near 

 the anterior margin of the eyes of somewhat irregular shape, and two 

 on the anterior margin, close together, continued on to the frons, and 

 when viewed from in front appearing of a somewhat triangular form. 

 Face with a more or less distinct short longitudinal streak on each 

 side, extending from about in a line with the base of the antennoe to 

 the base of the lorae ; interior margin of the gena3 and lorse narrowly 

 black. AntenncD : 1st joint yellow, 2nd black, apex narrowly yellow ; 

 setc'e black, base brown. 



Thorax — pronotum yellow or somewhat greenish, with or without 

 indications of four longitudinal black lines. Scutellum black or yellow, 

 in the former case with three yellow V-shapcd characters placed — one 

 at each basal angle and the other round the apical margin, or in the 

 latter with a triangular black spot near eaeh basal angle. Elytra 

 black, with the anterior margin and nerves, as far as the apical areas, 

 orange-yellow or somewhat greenish (in the ? these characters are 

 not so strongly defined); apical areas and nerves deep fuscous-black. 

 Sternum black, shining, exterior margin of the pro and inesonotum 

 yellow. Lerjs somewhat umber coloured or bright yellow. Coxce black, 

 apex dingy yellow. Fulcra yellow. TJiiglis : 2nd and 3rd pairs with 

 a short narrow line down the middle of the inside, at the apex. Tihics: 

 outer margin narrowly black ; 3rd pair, exterior margin spotted with 

 black ; spines brownish-yellow ; down the inside a broad black streak ; 

 spines on the inner margin finer and paler than those exteriorly. 

 Tarsi umber coloured or yellow, apex of the joints narrowly, and elates 

 fuscous-black. 



Abdomen above and beneath black ; side margins and posterior 

 margins of two or three of the terminal segments narrowly yellow. 



Length 2-21 lines. 



Very closely allied to T. 'i-notafus, but more elongate, and by the 

 characters on the elytra may at once be distinguished from that species. 



I have only seen this species since the publication of the other 

 portion of this genus. It was taken by Dr. Power, at Colton, in 

 Somersetshire, in August. 



Note. — On page 24 ante, species 7, for ptmctifrons, Pall., sub- 

 stitute Torncella, Zett. 



Lee : Julj/, 1875. 



