British Homoptera-Cicadina. 85 



apex, nerves sparingly granulate. Legs yellow. Aperture of 

 pygofer constricted, its outline sinuate, xipper notch semicircular, 

 its margin, seen from the side, obhque ; hind margin nearly vertical, 

 sinuate just before it joins the margin of the upper notch. Styles 

 very short, broad at the base, rapidly narrowing towards their 

 somewhat rhomboidal apex. Teeth of anal tube long, vertically 

 subcontiguous. Length, 1^ — 2f mm. 



? . Pronotum and scutellum widely pale down the middle, 

 their sides and the abdomen above blackish, the latter sometimes 

 with pale spots towards the apex. Length, 2^ — 3 mm. 



Macropterous form. — Elytra hyaline, nearly twice as long as 

 abdomen ; nerves fine pale brown, darker towards the apex, 

 sparingly granxilate, apical third of costal nerve black, sixth apical 

 area fuscous, at least in the female. Length, 3| — 41 mm. 



40. Lihurnia Fairmairei, Perris. 



Delphax Fairmairei, Perris, Noiiv. Exc. Ann. Soc. 



Linn. Lyon, iv., 170 (1857). 

 D. nccjlccta, Flor, Rhyn. Liv., ii., 57, 10 ; Fieb., 



Grundz. Delph., t. 8, fig. 52 ( .^^ genitalia) ; 



Marsh., Ent. Mo. Mag., i., 274, 16 ?. 

 Lihurnia neglecta, Scott, Ent. Mo. Mag., vii., 27, 23 ; 



Fieb., Cicad. d'Eur., pt. iv., 57, 52. 

 L. extrusa, Scott, I.e., 194, 22rt, sec. spec. comm. 



Pale brownish yellow, sides of pronotum and scutellum and 

 frequently also sides of abdomen widely brown. Elytra in the 

 brachypterous form about two-thirds as long as abdomen, broadly 

 rounded at the apex, inner marginal nerve white ; nerves strong, 

 sparingly and indistinctly granulate ; in the macropterous form 

 nearly twice as long as abdomen, whitish hyaline ; nerves fine, pale, 

 darker towards the apex, very finely and sparingly gi-anulate, 

 marginal nerve of membrane black. Towards the apex of the 

 abdomen each segment has a transverse row of about three black 

 punctures on each side, and a fine j)ale dorsal line runs down the 

 middle. Upper notch of pygofer (male) rounded at the base, ver y 

 wide and deep ; hind margin, viewed fi-om the side, with a wide and 

 deep arcuate notch in the middle, produced above into a strong 

 triangular tooth, lower angle of the notch rectangular or nearly 

 so ; styles visible, cleaver-shaped, reaching across the mouth of the 

 notch. Styles (PI. II., fig. 10), viewed from behind, wide, flat, black 

 parallel-sided, straight and connivent for a short distance from the 

 base, then suddenly bent outwards and afterwards curved upwards, 

 their apex truncate. Lengtli, 2fi — 4^ mm. 



