298 PHYTOPHAGA — HALTICIDAE. 



Eather narrower than P. ajffinis and less convex, rows of 

 punctures on elytra placed nearer each other, thorax longer 

 and much less strongly punctured. Lighter or darker yel- 

 low-red, under-side usually darker. Thorax indistinctly 

 punctured, with a small impression on each side of base ; 

 rows of punctures on elytra enfeebled at apex, interstices 

 very indistinctly punctured. L. 1^ 1. Not very common. 



P. luteola, MtiU. 



6. Posterior femora bronzed-pitch-brown. 



Ovate. Pitch-brown, upper-side with bronze reflection ; 

 antennae reddish ; legs (except posterior femora) yellow-red. 

 Thorax very finely and not very closely punctured, with a 

 slight impression on each side at base ; rows of punctures 

 on elytra not very straight at base, interstices with a few 

 wrinkles and very fine punctures. L. 1^- — Ih 1. Common. 



P. jjicina, Marsh. 



Apteroiyeda, 



A* Interstices on elytra punctured. 



Nearly hemispherical, but slightly narrowed before and 

 behind. Upper-side bronze, blue or green ; under-side 

 bronze-black; antennae andlegs yellow-red, former brownish 

 at apex, latter with front pairs of femora more or less brown 

 and posterior femora bronze or blue. Thorax rather closely 

 punctured ; interstices on elytra flat, finely punctured ; 

 posterior tibiae toothed. L. 1^ — IJ 1. Common. 



A. graminis, Panz. 



2?. Interstices on elytra almost impunctate. 



a. Thorax tolerably closely punctured. 



Similar in form to A. graminis. Pitch-black ; antennae 

 and legs reddish ; femora of posterior legs bronze-black ; 

 their tibiae brownish, toothed ; antennae thicker than in A. 

 graminis, punctuation of thorax more difluse and a little 

 stronger at sides ; interstices on elytra tolerably convex, 

 with a few very fine punctures. L. 1^ 1. Scarce. 



A. globosa, Panz. 



b. Thorax scarcely punctured. 



Similar in form to A. graminis. Bluish-black ; under- 

 side black ; antennae and legs yellow-red, posterior femora 

 pitch-black. Antennae thicker than in A. graminis ; in- 

 terstices on elytra rather convex ; posterior tibiae not 



