394 Mr. E. Newman on the Genus Passandra 



commences a deep longitudinal furrow; these two unite 

 with the great transverse furrow. The prothorax has a pos- 

 terior and lateral marginal ridge ; this, in the centre of the 

 posterior margin, is incrassated, and as it were folded back on 

 the disk : from each posterior angle of the prothorax arises a 

 small keel-like ridge ; this meets a longitudinal discoidal fur- 

 row, which, after nearly touching the anterior margin, turns 

 inwards along the margin, and nearly unites with the corre- 

 sponding furrow of the opposite side. Each elytron has 

 three furrows ; the first originates by the side of the scutellum 

 and extends to the apical angle ; the second dorsal, but distant 

 from the first ; it originates considerably below the basal mar- 

 gin and ceases as much before the apex ; the third is near the 

 second and extends beyond it at both ends. 



There are two examples of this insect in the British Museum ; 

 from the largest of these, whose dimensions are given above, the de- 

 scription is taken ; the second specimen agrees in every particular 

 except that it is scarcely half the size. There is no record preserved 

 of the habitat or donor. 



Sp. 5. Hect. her os. 



Cucujus heros, Fabricius. ' Syst. Eleu.,' vol. ii. p. 92. 



" In habit and size this species resembles Cucujus gigas. 

 The antennae are short, stout, moniliform, and in one sex with 

 the joints prominent beneath, serrated. The head has stout 

 porrected mandibles and a bisulcated forehead ; the prothorax 

 is flat, black, and has a furrow on each side. The elytra are 

 black, immaculate, and unequally striated. The body is black, 

 the femora red." — Fab. loc. cit. 



" Inhabits the island of Sumatra : in the museum of Mr. Lund." — 

 Fab. This cannot, as I imagine, be identical with the preceding ; the 

 three obvious furrows on each elytron in H. trigeminum could 

 scarcely be described as " elytra inaequaliter striata." The femora 

 moreover are not red. 



Sp. 6. Hect. bistriatum. (Corp. long. '54 unc. lat. "14 unc.) 

 Passandra „ Castelnau, ■ Hist. Nat. des Animaux ar- 



ticules,' Ins. vol. ii. p. 384. 

 Black and very shining, the abdomen and legs inclining to 

 pitchy red. The form of this insect is linear and more cy- 

 lindrical, the antennae are moniliform and stout. The sculp- 



