SCHEMATIZA. 499 



of the intermediate joints, so that this species seems almost to form a link between 

 Galerucella and Schematiza ; the thorax has, however, a lateral and central depression 

 and is formed as in the following species, and the elytra show the same finely rugose 

 and scarcely pubescent surface. The want of the apical fulvous spot to the elytra 

 and the larger size separates S. collaris from S. apicalis, Clark. 



2. Schematiza tricolor. (Tab. xxvm. fig. 14.) 



Oblong, slightly widened, subdepressed, fuscous ; clypeus testaceous ; thorax fulvous or flavous, finely pubescent ; 

 elytra dark fuscous, closely pubescent; antennae strongly dilated. 



Length 3-4 lines. 



Head finely coriaceous ; antennae fuscous, the third to the eighth joints strongly dilated and compressed, the 

 two terminal joints slender ; thorax reddish or yellowish, the sides strongly rounded and narrowed towards 

 the apex, the posterior margin perfectly straight, the surface broadly and deeply depressed at the sides, 

 finely pubescent, the pubescence obscuring any punctuation : scutellum broad, its apex broadly rounded ; 

 elytra slightly widened posteriorly, the apices broadly rounded, dark fuscous, finely coriaceous, and closely 

 pubescent ; underside and legs more shining, nearly black. 



Eab. Panama, Volcan de Chiriqui, Bugaba (Champion). 



The strongly dilated antennae, the slightly widened general shape, and the uniformly 

 coloured elytra (which are destitute of any costal) will distinguish S. bicolor from any 

 of the species described by Clark. 



3. Schematiza chontalensis. (Tab. XXVIII. fig. 17.) 



Depressed, widened behind, fuscous : antennae strongly dilated ; thorax fulvous ; elytra finely pubescent, the 

 lateral margin narrowly testaceous. 



Length 3 lines. 



Head very finely rugose, fuscous, the clypeus testaceous ; antennae piceous or black, triangularly dilated and 

 flattened from the third joint, the three apical joints slender ; thorax more than twice as broad as long, 

 the sides rounded, the anterior and posterior margins straight, the surface deeply impressed at the sides, 

 the latter testaceous, the middle of the disc more or less stained with fulvous or rufous, very finely punc- 

 tured and pubescent ; elytra dilated posteriorly, closely pubescent and very finely rugosely punctured, the 

 base and the lateral margin very narrowly testaceous ; underside and legs piceous, more or less stained 

 with testaceous. 



Eab. Nicaragua, Chontales (Janson). 



This species resembles 8. bicolor in general shape, but differs in the pale basal and 

 lateral margins of the elytra. 



4. Schematiza lateralis. (Tab. xxvili. fig. 16.) 



Obscure fuscous ; antennae black ; thorax obscure fulvous, the disc black ; elytra closely rugose, each with a 

 narrow testaceous stripe near the lateral margin, and a fulvous spot at the apex. 



Length 2-3 lines. 



Head finely rugose, fuscous, the clypeus and the labrum testaceous ; antennae not extending to half the length 

 of the elytra, black, the third joint the longest ; thorax twice as broad as long, the sides rounded, the 

 anterior and posterior margins straight, the surface with an irregular depression at the sides, the punc- 

 tuation obscured by the close pubescence, the latter of a silvery-grey colour at the sides and more or less 

 reddish-fulvous towards the middle, the disc being occupied by a longitudinal black or fuscous band j 



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