412 J. S. Baly — Bescrijption of a new Species of Hispa. 



XXI. — Description of a new Species of Phytophagous Coleoptera alleged 

 to he destructive to the Bhan Crops in the Ghittagong District. — By 

 Joseph S. Balt. Communicated by the Natural History Secretary. 

 [Received Feb. 24th ;— Read March 2nd, 1887.] 

 HiSPA AENESCENS. 



Suhelongata, nitida, suhtus cum antennis nigra, pedihus nigro-aeneo 

 micantihus ; supra nigro-aeneo aut nigro-cuprea ; thorace rugoso-punctato, 

 laterihus ante medium spinis quatuor, hasi connatis, et pone medium spina 

 unicd armatis ; elytris anguste ohlongis, fortiter seriato-punctatis, spinis 

 validis triseriatim dispositis, instructis Long. 2 Zm, 



Hab. Ghittagong District. 



Antennee slender, very slightly thickened towards the apex, the basal 

 joint armed at its apex beneath with a short tooth ; vertex finely rugn- 

 lose, longitudinally sulcate. Thorax rather broader than long, subcylin- 

 drical, flattened on the disk ; sides armed before the middle with four 

 stout spines, united into a single stem at their base, the anterior spine 

 looking almost directly upwards, the three others obliquely upwards and 

 outwards, behind the middle is also a single spine looking outwards and 

 slightly upwards, hinder angle armed with a short subacute tooth ; disk 

 coarsely rugose-punctate, a longitudinal vitta and a slightly concave 

 space on either side behind the middle nearly free from punctures. 

 Scutellum smooth, impunctate. Elytra narrowly oblong, strongly seriate- 

 punctate, armed with a number of strong erect spines, arranged in 

 three longitudinal rows, those on the outer row more crowded than those 

 on the disk. Legs simple. 



The small tooth at the lower edge of the apex of the basal joints of 

 the antennte, and the absence of any spines on the upper surface of the 

 joints, together with the colour of the upper surface of the body, will 

 separate the above species from any others known to me. 



