252 Mr. J. S. Baly on new Genera and Species of Gallerucidse. 



Genus Momjea. 



Corpus elongatum aut subelongatum, convexum. Caput crassum, 

 valde exsertutn ; front e lata, dcclivi ; facie perpendiculari ; mandi- 

 bulis magnis ; autennis corporis longitudini a^qualibus aut paullo 

 brevioribus, filiformibus, ad apicerri attenuatis, articulo primo cur- 

 vato, a basi ad apicem incrassato, secuudo primi dimidise parti eequali 

 aut paullo breviore, tertio elongato, articulo quarto longiore, cseteris 

 singulatim quarto requalibus ; palpis maxillaribus crassis, apice acu- 

 minatis ; oculis vix prominulis, intcgris. Thorax transversus, lateribus 

 anguste marginatis, obtuse angulatis, augulis omnibus tuberculo seti- 

 gero instructis ; disco trausversim concavo, medio longitudinaliter ex- 

 cavato, utrinque trausversim sulcato. Elytra metallica, tborace 

 latiora, fere parallela, convexa, infra basin trausversim depressa, con- 

 fuse punctata, glabra aut postice pube tenuissima sparse vestita. 

 Pedes modice robusti, sat elongati ; coxis anticis erectis, fere conti- 

 guis ; femoribus posticis non incrassatis ; tibiis omnibus apice muticis ; 

 tarsorum posticorum articulo basali duobus sequentibus longiore ; 

 unguiculis bifidis. Prosternum lineariforme. 



Type, Momcea viridipennis. 



The longer third joint of the antennas, together with the 

 different manner in which the thorax is excavated, will separate 

 this genus from Nicea and Eumcea, two nearly allied forms. 

 There is a slight error in the characters given by me of the latter 

 genus (Annals, January 1865, p. 37); it ought to read — "Pro- 

 sternum angustissimum aut obsoletum ; tibiis coxis anticis con- 

 tiguis." In both Nicea and Eumcea all the tibise have their apices 

 unarmed. 



Momaa viridipennis. 



M. clongata, convexa, fusco-fulva, nitida ; capite (epistomate excepto) 

 nigro-piceo ; pedibus antennisque nigris ; elytris viridi-eeneis, 

 crebre punctatis, sparse fusco-sericeis. 



Long, bh lin. 



Hah. Mysol. 



Head large; jaws robust, prominent; forehead defiexed, im- 

 pressed in the middle with a deep longitudinal fovea ; surface shi- 

 ning, irregularly but not closely punctured : encarpae contiguous, 

 triangular; lower portion of face, together with the base of the 

 jaws, obscure fusco-fulvous. Thorax more than twice as broad 

 as long; sides obtusely angled, diverging and slightly sinuate 

 from their base to just beyond the middle, then converging 

 to their apex ; upper surface transversely concave, impressed on 

 the hinder half of the middle disk with a large longitudinal 

 fovea ; on cither side is a deep but ill-defined transverse depres- 

 sion which extends from the outer border nearly to the medial 

 line. Elytra subelongate, nearly parallel, convex ; their surface 

 convex, excavated and sinuous below the basilar space, about the 



