ANCHASTTTS. 393 



of the prothorax, the joints from the third widened and serrate, 3 and 4 equal, 2 very small. Prothorax 

 ahont as long as broad, parallel behind, the sides rounded and converging from the basal third ; the hind 

 angles greatly produced, acute, obliquely unicarinate ; the surface closely, finely punctate, feebly canali- 

 culate behind. Elytra narrower than the prothorax, narrowing from the base, separately rounded at the 

 apex ; punctate-striate, the punctures closely placed, the interstices flat on the disc and feebly convex 

 at the sides, closely punctate. Beneath closely, finely punctate ; prosternal sutures obsoletely channelled 

 in front. 

 Length 10, breadth 3| millim. ( 2 .) 



Hab. Honduras (Salle). 



One specimen. This insect, at first sight, appears to be nothing more than a colour- 

 variety of A. (Monelasmus) augusti; but it differs from that species in having the front 

 rounded and completely margined (in A. augusti the front is more angular and not 

 margined in the middle), the thorax less densely punctured and with an oval black 

 patch on the middle of the disc, the lateral vitta of the elytra extending to the margin 

 (in A. augusti it is placed on the ninth interstice), and the femora and under surface 

 not entirely black. This species forms a connecting-link between A. augusti and the 

 more typical members of the genus Anchastus. 



5. AnchastUS augusti. (Tab. XVII. fig. 18, 2 , var.) 

 Monelasmus augusti, Cand. Monogr. Elat. iv. p. 333, t. 4. figg. 15, 15 a 1 . 



Hab. Mexico (Salle, in coll. Chevrolat x ; coll. Janson, ex Parry x ) ; British Honduras 

 (coll. Janson) ; Guatemala, Panzos in Vera Paz (Conradt). 



I have seen three specimens of this species, including one of the types contained in 

 the Janson collection. The thorax in the type has two very large, elongate, black 

 marks, these being shorter and more rounded in the example from Panzos, from which 

 our figure is taken. The propleurse are sometimes entirely flavous. The submarginal 

 flavous stripe varies in length. The single thoracic carina is sharply defined and 

 very oblique. The head is declivous in front, the frontal plate subangular and 

 separated from the anterior margin by a narrow space, the carina obliterated in the 

 centre. 



6. Anchastus diversus. (Tab. XVII. fig. 19, 2 .) 



Elongate-oval, rather convex, slightly shining ; deep black, the head, prothorax, a large patch on the basal 

 half of the elytra, obliquely narrowing from opposite the scutellum to the lateral margin, and the pro- 

 pleuras rufous or orange-red ; thickly pubescent, the pubescence partaking of the ground-colour above 

 and brownish beneath. Head finely and closely punctured, convex, declivous in front, the front separated 

 from the anterior margin by a narrow space, the carina obliterated in the middle ; antennae about reaching 

 the hind angles of the prothorax, the joints from the third moderately widened and serrate, 3 and 4 equal 

 in length. Prothorax longitudinally convex, as long as broad, parallel behind, gradually and arcuately 

 narrowing from about the middle forwards ; the hind angles acute, strongly produced behind, sharply 

 and obliquely unicarinate ; the surface closely and very finely punctured, deeply canaliculate behind. 

 Elytra moderately long, slightly narrower than the prothorax at the base, narrowing from a little below 

 the shoulder, separately rounded at the apex : shallowly punctate-striate, the interstices flat and closely 



biol. centr.-amer., Coleopt., Vol. III. Pt. 1, October 1895. 3E 



