OCTOCLADISCTJS. 23 



Thorax transversus, apice integro. 



Scutellum (fig. 6 i) latum, subpentagonum. 



Elytra ovata, subdepressa, margine explanata, apice rotundata. 



Pedes brevi, robiisti; tarsis latis, articulo primo scmilimato (fig. Qj), 



ungue brevi. 

 Corpus ovatum, subdepressum. 



Nearly allied by its antennae to the following genus. In the form 

 of the labium it comes near to (Ediopaljja, after which I have 

 placed it. 



1. Cladispa quadrimaculata, n. sp. Tab. IV. Fig. 6. 



C. ovata, subdepressa, pallide flava, nitida ; antennis, elytrorum 



maculis quatuor tarsisque nigris. 

 Long. 3i lin. 



C ovate, subdepressed, pale yellow ; antennse (basal joint excepted) 

 and two spots on each elytron black. Thorax transverse ; sides 

 nearly straight, narrowed and rounded in front; apical margin 

 very slightly produced, subsinuate on either side ; siu-face smooth 

 and shining ; disc impunctate ; sides coarsely punctured ; at the 

 base is a deep transverse groove. Scutellum smooth, shining. 

 Elytra ovate, broader than the thorax, more than three times its 

 length, sHghtly convex, finely punctate-striate, each with two 

 large black patches ; the fii'st basal, extending a third down the 

 elytron, and across from the outer margin nearly to the suture ; 

 the second just below the middle, rather smaller, transverse and 

 subovate, connected to the outer border by a narrow process. 

 Beneath pale fulvous ; tarsi black. 



Hab. Demerara. 



A single specimen in the collection of J. 8. Baly. 



Genus VII. OCTOCLADISCUS, Thompson. Details, Tab. I. Fig. 7. 

 Eev. et Mag. de Zool 1856, p. 480. 



Antennce (fig. 7 a) dimidio corporis longiores, articulo primo brevi, 

 incrassato, apice introrsum paullo producto, duobus sequentibus 

 brevissimis, simphcibus, cseteris elongatis, introrsum valde flabel- 

 latis, ultimo incrassato. 



Lahrmn (fig. 7 6) transversum, apice declive. 



Mandibidce (fig. 7 c) parvoB, apice truncatse, obsolete -dentatae. 



Palpi maxillares (fig. 7 d) articulo primo parvo, duobus sequentibus 

 obconicis, ultimo ovato, apice obtuse truncato ; lahiahs (fig. 7 e) 

 articulo primo parvo, secundo obconico, ultimo ovato. 



Mentum (fig. 7/) brcvissimum, transversum; Ihjula (fig. 7<7) sub- 

 quadrata, apice rotundato. 



Cajmt fere verticale ; oculis magnis, ovatis. 



