XANTHISPA. 



31 



Mentum (fig. 9/) trigonum ; ligula, segmento basilari {(ig. 9 </) crasso, 

 subtrapeziformi, basi emarginato, lateribiis constricto, apice ob- 

 tuso, segmento apical! (fig. 9 /;-) breviter lingaiseformi. 



Caput fronte subreclivi ; oculis ovatis. 



Thorax transversus, apicem versus angustatus, antice vix emarginatixs, 

 angulis antieis posticisque aciitis, dorso complanatus. 



Scutellwn magnum, triangailare, aciitum. 



Elytra complanata, thorace latiora, apice truncata, lateribus parallelis. 



Pedes breves, robusti ; femoribus incrassatis, subcompressis ; tibiis 

 simi)licibus, apicem versus leniter incrassatis ; tarsis (fig. 9 i) 

 latis, articulo basali brevi extrorsum ampliato. 



Corpus oblongo-elongatum, depressum. 



1. Melanispa truncata, n. sp. Tab. V. Fig, 1. 



if. oblongo-elongata, depressa, nigra, nitida; elytris punctato-striatis, 



truncatis. 

 Long. 4|- lin. 



M. oblong-elongate, flattened above, shining black ; apex of elytra 

 broadly truncate. Head broad, forehead longitudinally impressed ; 

 antennae rather longer than the head and thorax, five basal joints 

 shining, the rest opaque. Thorax transverse, gradually narrowed 

 from the base to the apex ; sides shghtly rounded, anterior and 

 posterior angles acute ; above flattened, convex at the sides ; 

 siu'face deejjly punctured, punctiu'es on the disc distant, more 

 crowded towards the outer margin and base. Sciitellum large, 

 triangular, its apex acute ; siuface smooth, impunctate. Elytra 

 broader than the base of the thorax, parallel, narrowed and 

 rounded near theii' apex, the latter broadly truncate ; siu'face 

 flattened, indistinctly elevated at the base, slightly convex near 

 the apex, suddenly deflexed at the sides, the latter narrowly mar- 

 gined ; each elytron with eleven more or less interrupted rows of 

 punctiu'es, those near the sutiire coarser and more deeply impressed 

 than the others, their interstices obsoletely raised ; surface near 

 the outer margin obsoletely wrinkled. Beneath shining; sides 

 of prothorax, and the pleurae, coarsely and irregularly punc- 

 tured. 



Hah. Guadaloupe. 



Collections of M. Chevrolat and J. S. Baly. 



Genus X. XANTHISPA. Details, Tab. I. Fig. 10. 



Cephaloleise pars, Guer. 



Antennce (fig. 10 a) subfiliformes, basi et apice subattenuatae, dimidio 

 coi-poris breviores, articulis cylindiieis, primo parvo, non in- 

 crassato, secundo et tertio utrisque illo quadniplo longioribus, 

 basi ad apicem perpanim incrassatis, reliquis bre\-ioribus, ultimo 

 pauUo longiori, subacuminato. 



