300 Mr. J. S. Baly on the Phytophaga. 



basi paidlo angustata; pa/pis labialibm articulo ultimo conico, acnto ; 

 oculis prominentibus. Thorax transversiis. Scutellum subtrigouum, 

 apice obtuso. Elytra oblonga, modice convexa, thorace latiora, parallela. 

 Pedes graciles, simplices; coxis anticis contiguis, perpendicularibus ; 

 vnguicidis appendiculatis. 

 Type, Stenoplatys Pascoei, Baly. 



The general form of the body resembles Aplosonyx ; but the en- 

 tirely different antenna) at once separate Stenoplatys from that genus. 



Stenoplatys Pascoei. (Plate XII. fig. 5.) 

 S. subelongata, modice convexa, pallide flavo-fulva, nitida; antennis 

 (apice excepto) elytrisque fuscis, bis asneo micantibus, tenuissime sub- 

 crebre punctatis, antice fossa communi crucifonni impressis ; postpectore 

 abdomineque piceis. — Long. 5-5± lin.- 



Var. A. Corpore pallide piceo, pedibus flavis. 



Mas. Abdominis segmento anali trilobato. 

 Hab. Old Calabar. 



Subelongate, moderately convex. Head impressed on the vertex witb 

 a deep fovea; face oblong; apex of jaws black ; antennae slender, nearly 

 equal in length to the body. Tborax twice as broad as long, sides 

 narrowly margined, straight and nearly parallel, obtusely angled just 

 before the middle, thence obliquely narrowed to the apex, all the angles 

 prominent ; disk minutely punctured, impressed with three large shallow 

 foveae. Elytra much broader than the thorax, oblong, parallel, their 

 apex rounded, above moderately convex, impressed longitudinally along 

 the suture, and transversely below the basilar space, the two depressions 

 forming a large common cruciform fossa, the suture itself indistinctly 

 costate ; basilar space on each elytron obsoletely elevated ; on the outer 

 disk, a short distance below the transverse groove, is a large shallow fovea. 



Genus Praso^a. 



Corpus elongatum, modice convexum. Caput porrectum; antennis fill— 

 formibus, apicem versus attenuatis, articulo primo incrassato, subclavato, 

 secundo brevi, obovato, tertio duobusque proximis singulatim secundo 

 triplo longioribus, inter se longitudine asqualibus, cneteris paullo brevi- 

 oribus ; labro transverso, margine rotundato ; mandibulis curvatis, apice 

 dentatis; mento transverso-quadrato ; palparnm articulo idtimo apice 

 acuto; oculis prominulis, integris. Thorax transversus, lateribus fere 

 parallelis, dorso ante basin transverso-sulcato. ScuteUum subtrigonatum. 

 Elytra thorace paidlo latiora, parallela, apice rotundata, doi-so modice 

 convexa, confuse punctata. Pedes mediocres ; femoribus posticis modice 

 incrassatis, subtus ante apicem leviter sidcatis ; tibiis posticis apice den- 

 tibus duobus brevibus armatis ; farms posticis tibiarum apici insertis ; 

 nnguicidis appendiculatis. Presternum modice angustatum, distinctum, 

 apice dilatatum. 



Type, Prasona prasina, Baly. 



