24ti DÜRTDEA METALLICA 



racters; they are however evidently females and the male 

 insect probably differs in the structure of the antennae. 



Medythia, nov. gen. 



Ovate , convex ; palpi and antennae filiform , the third 

 joint of the latter one half longer than the second ; thorax 

 not broader than long, narrowed at the base, the surface 

 without depressions ; elytra ovate , pointed at the apices , 

 irregularly punctured ; legs long and slender , the posterior 

 tibiae with a distinct spine; the first joint of the posterior 

 tarsi as long as the three following joints together; claws 

 simple; anterior coxal cavities open. 



The ovate , convex general shape , the long , posteriorly 

 narrowed thorax, slender legs and the simple claws distin- 

 guish Medythia from any of the other numerous genera of 

 Galerucinae. 



Medythia quadi'imaculata, n. sp. 



Fulvous ; the head and the lower joints of the antennae, 

 piceous ; thorax minutely punctured ; elytra a little more 

 strongly punctate, a square-shaped spot at the shoulder 

 and a triangular one near the apices, piceous. — Length 

 1 line. 



Head rather longer than broad , piceous , the vertex im- 

 punctate , the frontal tubercles strongly developed , tri- 

 gonate; the clypeus with a distinct central longitudinal 

 ridge , strongly punctured at the sides ; palpi piceous , the 

 terminal joint slender , elongate and pointed ; antennae 

 scarcely shorter than the body, the three basal joints ob- 

 scure fulvous, the four following ones black , the 8*^, 9th and 

 10th whitish, the terminal joint black; thorax strongly 

 narrowed at the base, the posterior angles obliquely rounded, 

 the anterior ones thickened in shape of a more or less 

 distinct tubercle, the surface extremely finely punctured, 

 only visible under a strong lens, shining, fulvous; elytra 



^otes from the X^eyden JMuseum , Vol. IX. 



