154 Tlemiptera-fleteroptera. 
Collett ; Pitlochry, Norman; Haliday Collection without 
locality. 
G. paludum, /u).—Like the preceding in form, uni- 
formly black, with the exception of the lateral margins of 
the pronotum, a dorsal line on its anterior lobe, a transverse 
spot at the base of the head, and the connexivum, which are 
pale. Antenne shorter than in the preceding, its first joint 
very long, nearly as long as the other three together ; 
surface of head arfd pronotum densely clothed with ex- 
ceedingly short golden hairs, which impart a brownish tinge 
to them; elytra entirely black; abdomen black above ; 
connexivum narrowly pale, its posterior spines dark, longer 
than the genital segments, slightly bent outwards at the 
apex; legs with the posterior femora distinctly longer than 
the tibize and tarsi together ; apical joint of tarsi not half 
so long as the basal. Almost always macropterous; I 
have never seen it otherwise. 
L. 16 mm. 
Chobham; Caterham; Eltham; Battle, Butler; Cardiff, 
Taff’s Well, Cowbridge, Billups ; Aylesford, Marshall. 
G. najas, De G.—Very like paludum, but very rarely 
winged ; it differs however from that species in having no 
pale streak on the pronotal margin, the first joint of the 
antenne as long as the remaining three, the posterior 
femora only just longer than the tibize and tarsi together, 
the first joint of the tarsi not quite twice as long as the 
second, and the connexival spines not so long as the geni- 
tal segments, straight, their extreme apices not divergent. 
L. 16 mm. 
Streams, Reigate, Chobham ; Hastings, Butler ; Devon, 
Parfitt ; River Avon, Nunton, Marshall ; Glanvilles Woot- 
ton, New Forest, Dale; Yelverton, Bignell. 
G. Coste, H. Scif—Shorter and broader than any of 
the preceding. Head black, antenne ferruginous, basal 
joint about equal to the second and third together, second 
and third subequal, fourth slightly shorter than the first ; 
