8 02 M. L. Peringueys Fourth Contribution [March 30, 



elytra moderately convex, more so in the female than in the male, 

 with the suture raised and seven acute costae on each elytron, with 

 the interstices somewhat narrow and deeplf foveate, outer margin 

 bi-punctate and very slightly pubescent. 



Very closely allied to P. suturella, Chaud., but the white sutural 

 band does not reach the apex of the elytra. 



Zambeze, Transvaal ? 



Gen. Cypholoba. Chaud. 



C. AMATONGA. 



Mas. Elongata, nigra, parum convexa, prothorace ohlongo, supra 

 deplanato lateribusque ampliatis ; elytris nitidis, in singulo quinque 

 costatis, costis apice sub-obliteratis, inter stitiis alveolatis, in fundo 

 brunneo-pubescentibiis, parte postica margineque laterali vage pilosis. 



Femina : a mare differ t prothorace magis elongato lateribus 

 sub-attenuatis, elytris a medio ad apicem ampliatis supraque 

 convexioribus. 



Long. 17-18, lat. 9 mm . 



Male : Black, shining, head deeply impressed on both sides, 

 prothorax punctured, cordiform, with the outer sides ampliated in the 

 male, elongated and more deeply and broadly grooved in the centre on 

 tfhe female ; elytra with the suture raised, and each with five acute 

 ridges reaching short of the apex, interstices broadly and deeply 

 alveolated and filled with a brown pubescence, apical part and outer 

 margin very slightly pubescent. 



Female : Elytra more ampliated from the middle and more convex 

 than in the male. 



Closely allied to Polyhirma macilenta, Oliv. and Cypholoba Plant i 

 Chaud. From the first it differs mostly in size and in the shape of 

 the prothorax of the male, the sides of which are more amplified, and 

 by the disposition of the alveolae which are broader ; from C. Planti 

 it differs also by the shape of the prothorax which in the male is 

 much less elongated and more cordiform — (the difference between the 

 males of both species is very striking) — and by the convexity of the 

 elytra of the female which in Planti are almost plane. 



Amatongaland, Delagoa Bay. 



