206 tJ^iy- 



ON CEETAIN BEITISH HOMOPTERA. 

 BY JAMES EDWARDS, F.E.S. 



(Plate XVIII.) 



Megophthalnms scabripeniiis sp. n. 



Differs from M. scanicus in having the surface of the coriuin between the 

 veins covered with closely-placed tubercles ; the recvirved barbs on each side of 

 the upper edge of the mouth of the aedeagus more than half as long as the 

 stem ; genital style (fig. 9) with a broad angular tooth on the outer side about 

 midway between the apex and the bend. In M. scanicus the surface of the 

 corium between the veins is covered with a coarse, shallow, confused punctua- 

 tion, the barbs at the mouth of the aedeagus are about one-fourth the length 

 of the stem, and the style (fig. 8) is of nearly equal width from the bend to 

 the apex. 



I have seen M. scahripennis from Weston-super-Mare ; Hope 

 Hills, Colwyn Bay, Denbighshire ; Symonds Tat, Credenhill, Hereford- 

 shire ; Snowdon ; Pendine, Carmarthenshire ; and Sherwood Forest, 

 Bulwood Forest, and Linby, Notts ; twenty-one examples in all. The 

 only species which I have hitherto found at Colesborne is scanious ; 

 but Prof. J. W. Carr has taken both species on the same day at Linby, 

 as did Mr. E. A. Butler at Pendine. 



Idiocerus albicans Kbm. ab. fusco-coeruleus ab. n. 



Head, pronotum and legs blackish-brown, with a deep blue tinge similar to 

 that found on the elytra of the male of Tettigonia viridis ; elytra fuscous, becoming 

 gradually paler just before the apical areas. 



One female oif White Poplar in a garden at Norwich (Thouless). 



Acocephalus trifasciatus Fourcr. 



Nearest to A. bifasciatus, but has the elytra white at the apex ; i.e., the 

 elytra are white with the base broadly, and two transverse bands, one near the 

 middle and the other just before the apex, dark brown. The barbs of the 

 aedeagus (lig. 1) are as follows: a small rectirved pair at the apex, a small 

 straight lateral pair behind the middle, and a large divergent dorsal pair, also 

 behind the middle. On the aedeagus of A. bifasciatus, and A. tricinctus there 

 are no apical barbs, and the large dorsal post-median pair are sub-parallel. I 

 am not acquainted with any characters by means of which the females of 

 A. bifasciatus, A. trifa$ciatus, and A. tricinctus may be distinguished with any 

 degree of certainty. 



I have only seen this species from Nottinghamshire, where it has 

 been taken by Prof. Carr on Langford Moor. 



