186 Mr. J. S. Balj on the differential characters 



anali late concavo-cmarginato ; tela moclice elongate, valde 

 curvato, apice vix recurvato, linguiformi. 



Foem, — Abdominis segmento anali leviter concavo-emar- 

 ginat o. 



A. Virldi-aut casrulco-metallica. 



B. Vii'idi-cyanea, liuea suturali vittaque discoidali 



caeruleis. 

 Long. 3;^ — 3| lin. 

 Hub. — Swiss AljDS. 



Thorax more than half as broad again as long ; sides 

 very slightly rounded, nearly parallel irom the base to the 

 middle, anterior angles acute, submucronate ; upper surface 

 coarsely punctured, sides thickened, bounded within by an 

 entire, deeply excavated, coarsely and irregularly-punctured 

 sulcation. Elytra broader than the thorax, ovate, dilated 

 posteriorly, coarsely and closely punctured, the interspaces 

 rugose. 



Ch. elongata, placed by Kraatz under speciosissima, 

 is a distinct and well-marked insect ; its elongate form, 

 narrow in front and dilated posteriorly in both sexes, will 

 at first sight distinguish it from any allied species; the 

 linguiform teliim will separate it from the $ of specio- 

 sissima, and the concave apex of the anal segment of the 

 abdomen from the $ of the same species. 



Chrysomela speciosissima, Scop. 

 Ent. Carn. p. 231 ; Suffr. Mon. p. 142. 



Oblongo-elongata, convexa ; thorace lateribus rotunda- 

 tis, basi parallelis, rarius a basi ad medium convergentibus, 

 disco evidenter, ad latera foveolato-punctato ; lateribus 

 incrassatis, intus sulco lato, rude punctato marginatis ; 

 elytris fere parallelis $, postice paullo ampliatis 2, sat 

 crebre aciculato-punctatis ; interspatiis leviter rugulosis; 

 palporum maxillarium articulo ultimo ad penultimum vix 

 tequilato, ovato. 



Mas. — Tarsorum articulis basalibus a pede primo ad 

 tertium longitudine perparum increscentibus ; abdominis 

 segmento anali leviter concavo-excavato, obsolete bisinuato; 

 tela modice elongate, regulariter curvato, lateribus paral- 

 lelis, apice oblique convergentibus, a])ice ipso paullo recur- 

 vato, modice producto, subcuneiformi. 



