18C6.] 



since the term " littorale " waa used by Col. Motschulksy for a species 

 of Ptenidium (a genus as diverse from Trichopteryx as any two genera 

 of one family can possibly be), and can only be cited as a synonym of 

 Pf. punctattim, Gyllenhal. 



Ptilium elongatum, Thomson. 

 A Ptilium, diifering from Pt. Kunzei in its finer sculpture, darker 

 colour, and prolonged apex of the elytra, is found abundantly under 

 dry cow-dung in most parts of the -countiy during the autumn. This 

 I conceive to be the Pt. elongatum of Thomson ; but, not having 

 received any types from him, can only enter its name provisionally in 

 our list. 



Trichopteryx Sara?, n. s. 



L. c. Vl lin- Brevis, lata, validissime convexa, pilis griseis densius 

 vestita ; capite et pronoto nigris, hoc magno, valde dilatato, ely tris latiori, 

 elytris rufo-castaneis, brevioribus, valde attenuatis ; pronoto tuberculis 

 minutissimis, distinctis, ordinibus regulariter sinuatis eleganter dispositis, 

 interstitiisque quam levissime alutaceis ornate, angulis posticis latis, 

 valde productis; pedibus atque antennis flavis. 



Sead — black, very large and wide, smooth and shining ; eyes small, 

 somewhat prominent ; antennte slender, with the two basal joints 

 bright yellow, the rest rather darker, and the apical joint much 

 elongate. 

 Thorax — black and shining, very large, excessively convex, much dilated 

 posteriorly, with tlie sides much rounded and strongly margined ; 

 ornamented with very minute but distinct tubercles, prettily 

 arranged in regularly sinuated rows, with the interstices delicately 

 alutaceous ; the posterior margin deeply tri-sinuate, with the 

 angles wide, and very much produced. 

 Seutelhom — pitchy-castaneous, large, triangular, acuminate, deeply and 



closely asperate. 

 Elytra — rufo-castaneous, attenuated posteriorly, narrower than the 

 thorax, equal in length to the head and thorax united, deeply and 

 very closely asperate, with the sides nearly straight, the apex 

 slightly rounded, and the posterior part of the suture elevated. 

 Abdomen — piceous, moderately exserted. 

 Legs — short, bright yellow. 



Under parts — castaneous, with a large spot near the apex of the meta- 

 sternum and the coxa; bright yellow; abdomen with terminal 

 segments paler. 



