BY REV. T. BLACKBURN. 487 



as the specimens before me are certaiuly Icesa and only doubtfully 

 arnica, I retain Germar's name. P. amrena, Clk., and purpureo- 

 aurea, Clk., will be found discussed (below) under the names 

 captiosa, Clk., and dehilis, Chp. P. debilis is a more recent name 

 than piirpicreo-aiirea, but I retain it on similar grounds to those 

 on which I retain loisa, Germ. P. citrina is not unlikely to be a 

 specimen of one of the forms that I have mentioned as local races 

 of heclica, Boisd., but the description is not sufficient to justify 

 any confident assertion of its identity. P. tenella, Chp., is, I suspect, 

 a species having a metallic pattern when living, but if so it is not 

 possible to form any idea of what that pattern is. The following 

 is a tabulated statement showing the characters distinguishing 

 the species of this subgroup: — 



A. Elytra not having a sharply defined metallic 

 ijattf 111. 

 B. The elytral series for the most part un- 

 syminetrical. 

 C. Elytra without well defined discal 

 markings. 

 D. Under surface and legs more or less 

 black. 

 E. Prothoraxnot having defined black 

 markings. 

 F. Elytra quite deeply striate 



throughout variicollis, Chp. 



FF. Elytra not, or scarcely, striate. Cloelia, Stal. 

 EE. Prothorax with defined black 

 markings, or even almost 



wholly black agricola, Chp. 



DD. Under side and legs testaceous laesa, Germ. 



CC. A black discal spot on each elytron. . Minerva, Blackb. 

 BB. The elytral series for the most part 

 symmetrical. 

 C. Elytra with systematic lateral in- 

 equalities. 

 D. Prothorax with sharply defined black 



markings bimaculata, Oliv. 



DD. Prothorax not having sharply de- 

 fined black markings. 



