100 Mr. Martin Jacoby's descriptions of some 



much larger than the second ; thorax with the anterior and posterior margins 

 parallel ; the sides rounded below the middle, with a narrow but distinct 

 margin, the anterior margins oblique, the surface impunctate ; elytra wider 

 at the base than the thorax, of the same colour, not depressed below the 

 base, very closely and finely punctured. 



This Lactica resembles many of its South American con- 

 geners in colour, and may be known by the parallel and 

 impunctate thorax in connection with the dark reddish colour. 



Lactica gabonensis, n. sp. 



Large, robust, entirely pale fulvous ; thorax with strongly rounded sides, 

 finely and closely punctured ; elytra scarcely more distinctly punctured. 

 Length, 4 lines. 



Of broad, elongate, and parallel shape, pale fulvous ; the head impunc- 

 tate, the elevations indistinct ; the carina broad ; labrum darker fulvous ; 

 the antennae scarcely extending beyond the base of the elytra, the second 

 joint short, the third and fourth equal ; thorax twice as broad as long, the 

 sides strongly rounded at the middle, the anterior angles blunt and broadly 

 oblique, the base with a perpendicular groove at each side, the intervening 

 space rather depressed, the surface very minutely and closely punctured ; 

 elytra much wider at the base than the thorax, rather convex, as closely and 

 scarcely more distinctly punctured than the thorax ; under side and legs 

 coloured as the upper side ; posterior tibiae mucronate. 



One of the largest size species of Lactica known to me, and 

 differing from most of its allies in the absence of a thoracic 

 transverse groove, but in other respects typical. 



(Edionychis impressicollis, n. sp. 



Obscure testaceous : antennae (the apical two joints excepted) nearly 

 black ; thorax impunctate, transversely sulcate at the base ; elytra strongly 

 and rather closely punctured. Length, 2? lines. 



Of posteriorly slightly widened shape ; the head impunctate, the frontal 

 tubercles strongly developed, the carina strongly raised ; labrum piceous ; 

 antennae short, not extending to half the length of the elytra, the three basal 

 and the two apical joints obscure testaceous, shining, the others black and 

 pubescent ; thorax twice as broad as long, the sides rather strongly rounded 

 with a broad margin, the base with a deep sinuate transverse groove, the 

 rest of the surface entirely impunctate ; elytra with a short depression below 

 the base, strongly punctured; the first joint of the posterior tarsi short, the 

 claw-joint strongly swollen. 



Principally distinguished by the deep thoracic transverse 

 groove. 



Physoma Haroldi, n. sp. 



Fulvous : antennae dark fuscous ; head sparingly punctured ; t. -ax 

 smooth, shining, finely and sparingly punctured ; elytra more closely and 

 distinctly punctured, the anterior half metallic blue, the posterior one pale 

 fulvous. Length, 4 lines. 



Head strongly punctured at the base and round the eyes ; clypeus in 

 shape of a transverse ridge, the anterior portion strongly truncate and 

 deflexed ; mandibles black ; palpi strongly incrassate ; antennae not extending 

 to half the length of the elytra, nearly black, the basal joint dilated, the 

 third and following joints of equal length ; thorax more than twice as broad 

 as long, the sides rather broadly flattened, the lateral margins nearly straight, 



