PHYLLOTKETA. 283 



1, Elytra punctured iu rows. 



A A. Upper-side deep black. 



Oblong-ovate. Under-side and legs black ; joints and 

 tarsi somewhat reddish. Thorax twice as broad as long, 

 sides rounded ; apex of elytra separately rounded ; punc- 

 tuation strong. L. f — 1 1. Common. P. atra, Payk. 



S -B. Upper-side black, with greenish or bluish 

 reflection. 



Similar to P. atra, but with base of antennae paler, pos- 

 terior angles of thorax rather more nearly right angles and 

 rows of punctures on elytra more regular. L. f — 1 1. Not 

 uncommon. P. obscure II a, 111. 



2» Elytra confusedly punctured. 



Elongate, elliptic. Black or bronze-black ; under-side 

 and legs black, base of posterior tibiae and the tarsi slightly 

 reddish. Thorax transverse, sides slightly rounded ; elytra 

 very obtusely rounded at apex ; punctuation rather fine. 

 L. I — 1 1. Not common. P. punctulata, Marsh. 



S. Elytra black and yellow. 



a. Each elytron with a longitudinal yellow band. 



J. Yellow band on elytra not strongly emarginate in 

 middle of outer-side, and its inner margin nearly 

 straight. 



1, Yellow band on elytra abruptly sloped inward 

 at base. 



Oblong-ovate. Black ; head and thorax with a greenish 

 reflection ; elytra as above ; base of antennae, apex of 

 anterior femora, knees of hinder pairs, under-side of tibiae 

 and the tarsi reddish. Elytra punctured strongly and in 

 rows at base, more feebly and confusedly at apex. 

 L. f — 1 1. Rather common. P. v it tula, Eedt. 



2, Yellow band on elytra gradually sloped inward 

 at base. 



A A. Thorax black ; tibiae red-yellow at base 

 only. 



a a. Body flat. 



Oblong-ovate. Black ; bands on elytra pale yellow ; 

 first three joints of antennae, base of tibiae and tlae tarsi 

 red-yellow. Thorax and elytra rather more strongly punc- 



