1875.] 77 



FoiHul at the end of .Time on beecli trcos at JJiri'li AVood, and in 

 July on palings under beeches at Blackheath. 



10. TriMILOCYB.V LACTEA. 



A)wmia lactea, Leth., Hem. Nord, 58 (1869); 2 edit. 74 (1871). 



Milk-wliite, immaculate. Head short, much rounded iu front. Pronotum twice as 

 long as the head, posterior margin slightly cmarginate. Eliftra milk-white, sub- 

 opaque throughout, anterior margin very narrowly reddish, nerves slightly 

 yellowish. Wings white, diaphanous, iridescent. Letjs yellowish. 



Abdomen yellowish-white. Length nearly 1^ line. 



Like T. rosce, lAn., but distinguisbed by its purer wbite colour, 

 which at once attracts attention, the somewhat shorter and broader 

 elytra, «tc. 



Ten years ago I had in my garden a seedling cherry tree, and this 

 species was found in all stages of growth on the under-side of the 

 leaves during July and August. I intended to describe it under the 

 name of T. cerctsi, but M. Lethierry informs me that it is his A. lactea, 

 described as above stated. 



12. TvPHLOCrBA ALNETI. 



Cicadula alneti, Dahlb., Vet. Ak. Ilandl., 181, (1851). T>fp1il. 

 aJneti, J. Sahib., Not. Eenn., xii, 181, 10 (1871). Ti/phloci/ba cori/li, 

 Toll., Stett. Ent. Zeit., xii, 70, 12, t. i, fig. 6 (1851); Flor, Ehyu. Liv., 

 ii, lOi, 15 (1861); Kirschb., Cicad., 184, 16 (1868). 



Pale yellowish, very glossy. Crown lunate iu front. Pronotum nearly twice the 

 length of the crown. Elytra hyaline with paler nerves, the 1st apical cell 

 small, the 4th obliquely truncate at the base and extending further back than 

 the others. Winys hyaline with concolorous nerves, the 2nd trnusversc one 

 very oblique, the 2nd longitudinal one much nearer to the 3rd than to the 1st. 

 Leys pale ycUow, clams of the tarsi slightly infuscatcd. 



Abdomen above slightly infuseated. Length \\ line. 



Resembles T. rosce, Lin., but differs in the jiroportious of the 

 apical cells of the elytra, in the obliqueness' of the 2nd transverse 

 nerve, in the proximity of the 2nd to the 3rd longitudinal nerve of 

 the wings, and in the form of the genitalia. 



Not scarce on alder trees at Lewisham, in August. 



11. TvrHLOCYBA KOSEA. 



Ttjpldoci/ha rosea, Flor, Khyn. Liv., ii, 403, 14 (1861); J. Sahib., 

 Not. Fenn., 1S3, 12 (1871). ? Ti/phl. roscipennis, Toll., Stett. Ent. 

 Zeit., xii, 70 (1851). 



