2ff0 JOURNAL, nOMBA Y NA TUBAL HISTORY SOCIETY, Vol. XtV. 



Comes nearest to P. orievfalis. Cam. ; is easily separated from it by the 

 different form of the median segment ; in it the enclosed space is finely, 

 not stoutly, longitudinally striated, and the apical slope of the segment 

 is not broadly and deeply furrowed. The black on the thorax has a 

 plumbeous hue ; the pygidial area is clearly defined ; it is smooth and 

 shining at the base ; the apex is opaque and has some irregular punc- 

 tures on the sides. The striae on the median segment give it a reticu- 

 lated appearance, especially on the sides. 



Altson testacbitarsis, sjy. nov. 



Niger, nitidis, scapo antennarum, mandibulis orbitisque oculorura 

 infra albis ; alls hyalinis, fusco biiasciatis. $ . 



Long : 6 m.m. 



Habitat : Simla. 



Antennae black ; the scape pale-yellow beneath. Head black ; a 

 line on the inner orbits reaching from shortly above the middle to 

 shortly below tbe base of the antennae, a mark on either side of the 

 middle of tbe clypeus and the mandibles, except the teeth, pale-yellow. 

 Thorax entirely black, covered with short pale pubescence ; the median 

 seo-ment irregularly, transversely and obliquely striated; the central 

 area is elongate ; it bears two keels in the centre at the base, which 

 reach to beyond the middle and diverge outwardly at the apex ; the 

 space between and on either side of them is smooth ; from its apex a 

 stout keel runs down to the end of the segment. The base of the pro- 

 notum is depressed and clearly separated from the larger raised apical 

 part. Pleurae smooth and shining ; the upper ] art of the mesopleurae 

 is raised ; on the sides, at the top of the apical slope of the median seg- 

 ment, is a short, stout tooth. W itigs hyaline, the nervures and stigma 

 blackish ; the latter pale at the base ; there is a fuscous cloud along 

 the outer side of the transverse basal nervure and a broader oblique one 

 occupying the radial cellule, except its apex, and extending through 

 the cubital cellules to the posterior border. Legs black ; the anterior 

 coxte in front, the greater part of the front trochanters, the base of 

 the fore femora and the whole of the front tarsi, pale-testaceous ; the 

 four hinder tarsi are of a darker testaceous colour. Abdomen smooth 

 and shining ; the two spots white ; the pygidium is covered with depressed 

 silvery pubescence and with some longish hair • its edges are testaceous. 

 The head and thorax are covered with silvery pubescence ; the apex of 

 the abdomen and the ventral segment sparsely with long silvery hair. 



