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



obtuse. Elytra sparingly clothed with very short suberect hairs, deeply 

 but not very closely punctured, the punctures fusco-fulvous, placed in 

 irregular rows, which, however, become lost towards the apex of the 

 elytra. Body beneath clothed with fine silky hairs; hinder thighs 

 shorter than the abdomen, moderately incrassate, armed beneath with 

 a short tooth ; tibire obscure piceous. 



Mastostctlms Stalii. (Plate XIII. fig. 4.) 



31. subelongatus, niger, nitidus, subtus pilis adpressis vestitus, supra fere 

 glaber; abdomine (segmenti analis plaga triangulari excepta), meta- 

 sterni plagis duabus medio connexis, pygidii margine, thoracis lateribus, 

 el vt risque pallide flavis ; his punctatis, utroque plaga humerali tri- 

 gonata, fascia lata communi prope medium, margine exteriore abbre- 

 viata, plagaque magna trigonata, ante apicem positis, nigria. — Long. 

 4f , lat. 2\ lin. 



Hab. Mexico. 



Subelongate ; the elytra broader than in the two preceding species. 

 Face trigonate, jaws elongate, epistome separated from the face by a deep 

 transverse groove, face closely punctured on either side near the inner 

 margin of the ej-es ; central space smooth, impunetate, punctured portion 

 clothed with a few fine suberect hairs; antennas moderately robust. 

 Thorax one-fourth broader at the base than long, sides nearly straight, 

 narrowed from base to apex, angles obsoletely produced, obtuse, upper 

 surface moderately convex from side to side, obsoletely grooved on 

 either side just within the apical margin, surface remotely punctured. 

 Scutellum trigonate, its apex obtuse. Elytra much broader than the 

 thorax, subremotely punctured ; hinder thighs shorter than the abdomen, 

 slightly thickened, unarmed beneath. 



Fam. Eumolpidse. 

 Genus Dermorttytis. 



Corpus subelongatum aut elongatum, subcylindricum. Caput thoraci ad 

 oculos insertum; facie perpendiculari 5 epistoma male definituni; antennia 

 gracilibus, subfiliformibus, articidis secundo et tertio longitudine fere 

 cequalibus ; hibro trausverso ; mandibtdis apice dentatis ; labio subconico, 

 men to aut ice coneavo, ligula basi obtuse angulata ; palparum articulo 

 ultimo ovato; oath's prominulis, intus ■vix emarginatis. Thorax sub- 

 cylindricus, lateribus marginatis, saspe angulatis. Scutellum semiova- 

 tum, obtusum. Elytra oblonga, parallela, punctata, tnterstitiia saape in 

 strigas transversas elevatis. Pedes modice robusti, simplices, tarsorum 

 articulo basali duobus sequentibus breviore, unguiculis appendiculatis. 

 Prostermtm subelongatum, lateribus coucavis, medio dentatis; ante- 

 pcctoris processu antero-laterali cuneifoi-mi, apice late truncato, angulo 

 exteriore ad angulum anticum thoracis non producto. 



Type, Dermorhytis ignco-fasciata, Baly. 



