528 MISCELLANEA ENTOMOLOGICA, NO. IV, 



19. Pterohel^us insularis, De Breme. 



Mon. Cossyph. 1, p. 30, pi. III., fig, 6. 



Dull brownish-black, oval; head prominent, rounded, sub-convex, 

 smooth. Thorax smooth, slightly convex, transverse, rounded on 

 the sides, sinuate behind, the margin narrow, flat, the anterior 

 angles not reaching the middle of the head, the posterior prominent 

 and curved a little behind. Elytra oval, sinuate at the base, 

 feebly narrowed towards the apex, slightly convex, with a number 

 of slightly visible raised costse, and between them two rows of 

 punctures slightly impressed, the margins smooth, flat and as large 

 a^ those of the thorax ; suture smooth. Antennae short, the last 

 five joints large and flattened. Legs brown, nitid. Thighs 

 dilated ; undersurface and body of an opaque brown. 



Long. 7 1 lines, lat. 4^ lines. 



Hab. — Rafile's Bay, N. Australia. 



I have never seen this insect. Like the last described .species, 

 which it seems somewhat to resemble, it shows afiinity to the 2nd 

 section of the genus. 



20. Pterohel^us laticollis, Pascoe. 



Ann. Nat. Hist. Ser. 4, Vol. III., p. 285. 



" Dark glossy-brown, the expanded margins of the elytra and 

 pi'othorax considerably paler ; head rather narrow behind the 

 antennary ridges, concave between them ; the eyes rather large 

 and approximate ; clypeus very convex, except at its anterior 

 angles, its suture indistinct ; prothorax short, broader than the 

 elytra at its base, minutely punctured, the margins broad and only 

 very slightly reflected, the basal fovefe strongly impressed ; 

 scutellum curvilinearly triangular ; elytra gradually and rather 

 rapidly narrowing from the base, seriate-punctate, the alternate 

 intervals of the rows forming slightly elevated lines, the suture 



