PSYLLIOOES. 



125 



the scutellar row of punctures generally long, the interstices 

 sometimes raised, usually flat, and hearing very fine and feebly 

 impressed punctures, which are often irregularly arranged in 

 longitudinal rows. Underside: anterior coxal cavities open behind ; 

 front and middle legs comparatively thin ; hind femora consider- 

 ably thickened, channelled on the underside for the reception of 

 the tibia?, the latter broadened towards the apex and channelled 

 above, the sides of the channel being set with sharp spinules and 

 somewhat sinuate, and generally ending in two sharp teeth ; the 

 hind tarsus is inserted at a point considerably before the apex of 

 the tibia, its first segment is very elongate and slender, the second 

 similar but somewhat shorter, the third bilobed, the fourth ending 

 in simple claws. 



This is a homogeneous genus, easily recognised by the ten- 

 segmented antenna? and the characteristic structure of the hind 

 tibia? and tarsi. 



Range. World-wide. 



Key to the Species. 



1. Colour pale testaceous, with the upper 



side subaeneous ; margins of elytra [p. 125. 



slightly fuscous Ps. palleola, Motsch., 



No such combination of colours; margins 

 of elytra not fuscous 2. 



2. Frontal carina in the interantennal space [p. 126. 



sharp Ps. viridana, Motsch., 



Frontal carina absent 3. 



3. Interstices between the rows of punctures 



on the elytra not costate at all 4. 



Interstices costate, at least towards the [p. 126. 



apex Ps. brettinyhami, Bah , 



Interstices costate throughout Ps. shir a, sp. n., p. 128. 



4. Body blue, without brassy tinge, broader 



at the middle ; the feeble interstitial 



punctures less numerous Ps. plana, sp. n., p. 128. 



Body black, with brassy sheen, narrower ; 

 the feeble interstitial punctures more [p. 129. 



numerous Ps. tenebrosus, Jac, 



72. Psylliodes palleola, Motscliulsky. 



Psyliiodes palleola, Motsch., Bull. Soc. Nat. Moscou, xxxix, 1866, 

 part 1, no. ii, p. 418. 



In form resembling [the European] Ps. luteola, Miiller, but a 

 little smaller. Oblong, subconvex, shining, punctate ; colour pale 

 testaceous, upper side shining suba?neous, eyes black ; pronotum 

 punctate ; elytra deeply punctate-striate, margins slightly fuscous. 



Length, lg mm.; hreadih, 1| mm. 



Ceylon : mountains of Nuwara Eliya. 



I have not seen the type. The above description is a transla- 

 tion from the original Latin. 



