558 INIr. Jolin Scott's Monograph of the 



Species 7. Trioza salicivora. 



Trinzn salicivora, llcuter (MS.). 



Orange red. Elytra clear, pale brownish-testaceous, 

 trans]iarent ; costal inargin curved somewliat regularly 

 from beyond the external basal cell to the somewhat acute 

 apex. 



Head : crorcn orange red. Face : lobes orange yellow, 

 scarcely as long as the crown down the centre ; base 

 broad ; apex somewhat acuminate ; divergence about equal 

 to ^ of the base of either. Antennce white; 1st and 2nd 

 joints somewhat fuscous at the base, 3rd and 4th slightly 

 clavate; apex naiTowly brown; 8 — 10 black, 4th about ^ 

 the length of the 3rd. 



Thorax orange red. Elytra clear, jjale brownish-tes- 

 taceous, transparent ; costal margin curved somewhat 

 regularly from beyond the external basal cell to the some- 

 what acute apex. Leys pale orange yellow. Tarsi: 2nd 

 joint, apex and clatvs fuscous-black. 



Abdomen, S, above somewhat orange yellow ; base 

 orange red. 



Length Ij line. 



We have no other British species for which it is likely 

 to be mistaken. 



I have only seen a single $ example taken by Dr. 

 Power at Balmuto, Fifeshire. 



Species 8. Trioza albiventris. 



Trioza albiventris, Forst. Verh. Ver. Eheinl. v. 84, 8 ; 

 Flor, llhyn. Livl. ii. 503, 6. 



Reddish-yellow or yellow-reddish, with two generally 

 ri-shaped characters on the mesonotum. Face: lobes 

 black, longer than the crown down the centre, slightly 

 divergent at the apex. Elytra clear, transparent, apex 

 acute ; dorsal margin for about 'f^ its length from the base 

 somewhat moderately and regularly curved, from thence 

 to the apex more abrupt ; radius long, apical half cm-ved 

 and running parallel Avith the costal margin. 



Head: crown black, margin yellowish-red; posterior 

 margin very slightly concave. Face black; lobes black, 

 longer than the crown down the centre, regularly tapering 

 from the base to the somewhat acute apex ; divergence 

 trifling. Antenna black; 1 — 3 joints bone white, 4th 

 about half the length of the 3rd. 



Thorax : pronotum yellow-reddish, with a short, trans- 

 verse, fine, black line posteriorly next the lateral margin ; 



