79 



presence of a velvety pilosity, is observable in the centre of each ely- 

 tron ; every part of the body is more or less thickly beset with a grey 

 pilosity. 



Female. — Almost exactly resembling the male, but the prothoracic 

 disk is not darker than the elytra, and there is no silvery mark in 

 their centre. 



In both sexes the carination of the elytra follows that of D. ma- 

 culicollis, but is less pronounced. 



Compared with D. macvMcoUis both sexes of this species are of 

 smaller size, and the discrepancy in breadth is rather more obvious 

 than in length ; the antennae of the males are very similar, but the 

 apical joint is more clavate in 2mr ; their colour is decidedly different, 

 in macuUcollis being black, in par testaceous, with the apices of the 

 ramuli slightly darker ; the prothorax is more rounded at the sides in 

 par than in the older species ; but the plainness and purity of colour 

 in par are sufficient at once to distinguish it. 



Male and female in the cabinet of Mr. Scott, to whom I am in- 

 debted for the opportunity of describing it. 



3. DiSTICHOCERA KiRBYI. 



Mas. Caput nigrum, lonyitudinaliter sulcatum, antennas dimidio 

 corporis longiores, W-articulatce, articulis 3—10 biramosis. Ho 

 sesquialtero : prothorax niger vittis 2 latis fulvis, dorso incequa- 

 lis lateribus medio l-dentatus : scutellum nigrum : elytra fidva, 

 b-carinata, apice dehiscentia, singula truncato, truncaturd bi- 

 sinuatd : pedes nigri. 

 Corp. long. ri5 unc; elytrorum lat. max. "3 unc. 

 Fem. Caput nigrum, longitudinaliter sulcatum, antennce dimidio 

 corporis vix longiores, 1 1 -articulatce articulis 4—8 apice emar- 

 ginatis : prothorax niger vittis 2 latis fuhis, lateribus medio 

 \-denta.tus : scutellum nigrum lateribus fulvum : elytra fulva 

 5-carinata apice dehiscentia, singula truncato, truncaturd bi- 

 sinuatd, pedes nigri. 

 Corp. long. r25 unc; elytrorum lat. max. "375 unc. 

 Male. — Head black, with the exception of a scarcely perceptible 

 fulvescent tinge on the short velvety down of the epicranium ; a deep 

 epicranial longitudinal sulcus extends forwards between the antennae : 

 eyes arcuate, reniform, pitchy black, large, approaching on the epi- 

 cranium, dilated and gibbose on the cheeks : antennae more than 

 half the length of the body, 11 -jointed; the first joint rather short, 

 stout, somewhat in the common shape of a reversed cone ; the second 

 joint very short ; the following, to the tenth inclusive, short, some- 

 what cup-shaped towards the base, and emitting at the apex two long 

 branches, which are slightly incrassated externally ; the eleventh 

 joint is much longer than either, slender towards the base, somewhat 

 club-shaped and very decidedly sesquialterous : prothorax uneven on 

 the back, somewhat restricted just behmd the anterior margin ; lateral 

 margins produced in the middle into a decided strong but obtuse tooth ; 

 the posterior half of each lateral margin concave, yet the anterior and 

 posterior margins are straight and nearly equal in breadth ; the colour 



