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



incrassato, secundo primo dimidio breviore, ovato, tertio paullo longiore, 

 subclavato, cseteris singulatim illi longitudine fere aequalibus, com- 

 pressis, modice dilatatis, ultimo paullo longiore; oculis prominulis, 

 ovatis, epwtoma integrum ; facie et rcrtice lanibus, sine carina aut canali- 

 culis. Thorax brevis, transversus. Scutellum trigonatum. Elytra ovata, 

 modice convexa, minute punctata, margine exteriore ante medium 

 paullo dilatato. Pedes antici quatuor simplices ; tibiis posticis dorso 

 canaliculars, marginibus canalicula? minute pectinatis; tarsorum ejus- 

 dem paris articulo primo ante apicem tibiae inserto. 

 Type, Nbnarthra variabilis, Baly. 



This genus is separated from all other known genera of Halticidce 

 by the nine-jointed antennae. 



Nonarthra variabilis. (Plate XXI. fig. 1.) 



N. rotundato-ovata, modice convexa, nitida ; pedibus (femorum posticorum 

 apice excepto) flavo-albis ; supra flavo-alba ; antennis extrorsum fuscis, 

 verticis macidis duabus, scutello, elytrorumque fascia lata transversa 

 baseos extrorsum abbreviata, altera vix pone medium integra, sutura 

 postice maculaque apicali nigris ; elytris minutissime punctulatis. — 

 Long. If lin. 

 Var. A. Elytrorum signatuvis plus minus ve obsoletis. 



Hah. Northern India. 



Rotundate-ovate, convex, nitidous ; body beneath black, legs pale- 

 yellowish white, with the exception of the apex of the hinder thighs ; 

 above pale-yellowish white ; antennas beyond their base fuscous. Head 

 smooth, nearly impunctate ; face without any trace of either longitu- 

 dinal ridge or sulcation, with the exception of a very short longitudinal 

 groove which runs upwards from the apex of the grooved line separa- 

 ting the epistome from the face; vertex with two parallel black triangular 

 patches ; labrum, eyes, and jaws black. Thorax twice as broad as long, 

 sides distinctly margined, rounded at the base, obliquely rounded and 

 narrowed in front, anterior angles obtuse, slightly thickened ; disk 

 smooth, impunctate. Elytra oval, shoulders rounded, anterior half of 

 lateral border dilated, its upper surface concave ; general surface of 

 elytra moderately convex, smooth and shining, very minutely punc- 

 tured. 



Nonarthra omata. 



N. rotundato-ovata, modice convexa, nitida, subtus cum antennis (harum 

 basi flava excepta) nigra, capite thoraceque testaceis, pedibus elytrisque 

 flavis, his fascia lata basali extrorsum abbreviata fasciaque vix pone 

 medium utrinque abbreviata nigris, scutello nigro, tibiis posticis nigro- 

 pectinatis. — Long. l£ lin. 



Hab. Penang. Collected by Mr. Bowring. 



Very closely allied to the preceding species, smaller and some- 

 what broader in proportion to its length, the elytra rather more 



