158 . [December, 



the nerves also, distinctly reddish in the male ; the distribution of the yellow pigment 

 is uniform in the female. Membrane hyaline, with a very faint fuscous tinge, nerves 

 yellow. Abdomen yellow. Face, under-side and legs whitish, apical half of all the 

 tarsi black in the male and frequently in the female also ; this character is best seen 

 on the under-side. Male genitalia as figured (d, penis, e, style,/, plate). 



Taken by Mr. Douglas off the under-side of leaves of hazel 

 {Gorylus avellana) in his garden at Lewisham, in October. 



Ttphloctba opaca, n. sp. 

 Upper-side dull. Crown, pronotum and scutellum white or yellowish-white. 

 Elytra opaque-white, their basal two-thirds more or less strongly tinged with yellow 

 from the inner margin almost to the costa ; nerves of the membrane yellow, but 

 difficult to see owing to its opacity, the second apical area not stalked in the male 

 and but slightly so in the female. Face, under-side and legs pale yellowish-white, 

 claws black. Abdomen entirely yellow. Male genitalia as figured (g, penis, h, 

 style, i, plate). 



Inhabits the under-side of the leaves of horse-chestnut in Beaufort 

 Gardens, Lewisham. Several specimens from Mr. Douglas early in 

 October. This species may be easily recognised by its dull appearance 

 and opaque membrane ; a useful character of secondary importance 

 is the sessile second apical area. The male genitalia indicate in the 

 simple penis, and in a less degree in the contour of the styles,' an 

 affinity with T. Donglasi, but in the latter species the styles are much 

 larger and longer and bisinuate on their lower margin, a matter not 

 made sufficiently plain in the engraving No. 1 on p. 248 of Vol. xiv 

 of this Magazine ; it is remarkable that the foot-shaped style should 

 in both species be correlated with a penis devoid of appendages. 



Ttphlocyba pbuni, n. sp. 



S . White. Corium whitish-hyaline, membrane hyaline with a very faint 

 fuscous tinge. Legs white. Genitalia as figured (k, style, I, penis, the point of one 

 of the curved appendages of the latter was doubtless broken off in dissection) . 



One example from wild plum (JPrunus domesticd) near Norwich, 

 September 23rd, 1888. 



131, Rupert Street, Norwich : 

 November 1st, 1888. 



Where does Qonepteryx rhamni hibernate ? — I am greatly obliged to the Baron 

 de Selys-Longchamps for his valuable reply to my question, for it proves almost 

 conclusively that the colouring, marking and form of the wing of &. rhamni 

 contribute to give protection during the months when the insect is hibernating. 

 My difficulty was to find a situation in which such qualifications would be of any 

 service, and the happy discovery of the insect actually resting among the leaves on the 



