THYAMIS. 293 



terior femora more or less brown-black on upper-side and 

 apex. L, f 1. Common. T. pusilla, Gyll. 



h h. Posterior femora entirely red-yellow. 



Head dark brown ; thorax and elytra pale red-yellow, 

 anterior margin of former pitch-brown ; prosternum red- 

 yellow, rest of under-side pitch-black ; first four or five 

 joints of antennae pale red-yellow, rest dark brown ; legs 

 pale red-yellow, posterior femora slightly darker. Punc- 

 tuation indistinct. L. f — 1 1. Rare. T. Beichei, All. 



c c. Posterior femora entirely pitch-brown. 



Oblong-ovate, convex. Head and under-side pitch- 

 black, front of former reddish ; thorax yellowish-red ; 

 elytra red-yellow ; antennae red-yellow at base, brownish 

 at apex ; legs (except posterior femora and sometimes also 

 apex of posterior tibiae) red-yellow. Thorax rather indis- 

 tinctly punctured ; elytra finely but visibly punctured. 

 L. 1 1. Scarce. T. medicaginis, All. 



JB B» Abdomen brown or yellow. 



a a. Length 1| — 2 lines. 



A a. Elytra gray-yellow or yellow. 



A 1. Thorax scarcely narrower than 

 elytra; posterior femora red-brown. 



Oblong-ovate, convex, shiny ; upper-side gray -yellow, 

 head darker; prosternum gray-yellow, rest of under-side 

 red-brown ; antennae grayish, apex darker ; legs pale, pos- 

 terior femora red-brown, darker above and at apex. Punc- 

 tuation of thorax scarcely visible ; that of elytra very fine. 

 L. 1| — 2 1. Common. T. vcrhasci, Panz. 



The variety T. tliapsi has the head and under-side pitch- 

 brown, thorax and elytra pale red-yellow, latter with 

 suture narrowly black and antennae (except base) black. 



jB 1. Thorax much narrower than elytra ; 

 posterior femora pale red-yellow. 



Ovate, not very shiny, rather less convex than T. verhasci. 

 Pale yellow ; mouth, eyes and apex of antennae blackish. 

 Punctuation of thorax very indistinct, that of elytra very 

 fine. L. 1^ 1. Common. T. tabid a, Panz. 



B b. Elytra red. 



Ovate, shiny. Yellowish or reddish ; elytra red ; apex 



