August, 1873.] 49' 



DeLOGNATHA PUNCTICOLLTS, S^>. 01. 



Very near the preceding ; the mandibles are still shorter and more recurred, 

 the tooth at the middle of the inner margin is more acute ; the eyes, with their orbits, 

 are conical, the orbit being reduced to a mere triangulate plate, placed behind the eye 

 (like a prolongation of the cheek), which is partially divided by it; the mentum 

 is of the same form as in Lacorclairii, and thei-e is a similar well-defined triangulate 

 convexity occupying the middle of its outer face ; the intervals on the elytra are 

 still narrower and more convex ; the rest as in D. brericoniis. Length, 3 — 3t lin. 



Hcib. : Brazils ; three examples, captured by the late Eev. H. 

 Clark. 



As in all the other species of this genus, the colour (where a 

 series of examples has been obtained) is either of a deep shining 

 black, or dark ferruginous. 



Delogxatiia Buckleti, 6;^. n. 



Broader and less convex than any of the other species of the genus ; mandibles 

 longer and much narrower than in those preceding, the upper (outer) edge lightly, 

 and not at all arcuately, emarginate, the inner edge not toothed, the three apical 

 teeth long, acute, the inner one continuous with the side ; labrum large, prominent, 

 quadrate, apex squarely truncated ; mentum concave on the oviter face, with an 

 oblique elevated line near ea<?h side, not extending to the hase ; epistoma prominent 

 at the middle of the anterior boi'der ; antennary orbits gibbous, rounded ; eyes large, 

 prominent, slightly transverse, their margins entire ; antennae rather long, pilose, 

 the three last joints strongly perfoliate, the last large, rounded ; head, except on the 

 disc, rather coarsely punctured ; prothorax strongly transverse, quadrate, all the 

 angles rounded, lateral margins rather narrow, reflexed, entire at their edges ; very 

 finely and sparsely punctured, the punctures strongest and closest at the sides ; 

 elytra rather finely punctate-striate, the punctures approximate, rounded, the inter- 

 vals broad, nearly flat, and with a few widely scattered punctures. 



Length, 3^ lin. 



Hab. : Ecuador ; four examples, captured by Mr. Buckley. 



A very distinct species, and the most degraded form in the genus, 

 the eyes having lost all trace of a projecting orbit, their margins being 

 i entire. 



I do not know D. auriculata, Lacordaire, but it must have sharply 

 tubercled antennary orbits, as in Lacordairli, since this character 

 is given, without any qualification, in the generic formula ; and the 

 intervals on the elytra are stated to be distinctly punctured ; — two 

 characters quite at variance with any of the foregoing species. 



Of D. Laco7Hlairii, (Dej.) Lacord., I possess the two typical 

 examples, formerly in Lacordaire's collection. 



