HALTICA. 275 



Head sunk in thorax ; forehead with curved transverse 

 furrow ; thorax without basal furrow. 



Flectroscelis, Chevr. 



II, First joint of posterior tarsi as long as, or longer 

 than half the tibia. 



Head prominent ; thorax somewhat narrow, without im- 

 pressions, more or less punctured ; elytra confusedly and 

 more or less strongly punctured. Thyamis, Steph. 



h. Posterior tarsi inserted above apex of tibiae. 



Antennae with ten joints ; forehead with a depression or 

 furrow ; thorax narrowed in front, posterior angles not 

 rounded ; elytra with regular rows of punctures ; posterior 

 tibiae cut oft' obliquely and produced at apex ; first joint of 

 posterior tarsi long. Psylliodes, Latr. 



J5. Body hemispherical. 



a. Elytra with punctured striae. 



I, Antennae scarcely thickened toward apex. 



Forehead with a curved furrow and two small tubercles ; 

 vertex of head punctured; thorax transverse, without 

 basal furrow ; posterior tibiae channeled. 



Apteropeda, Chevr. 



II, Antennae with three distinctly larger apical 

 joints. 



Forehead with two oblique furrows, crossing each other ; 

 thorax transverse, without basal furrow ; posterior tibiae 

 not channeled. Mniophila, Steph. 



h. Elytra confusedly punctured. 



Antennae threadlike ; clypeus entire ; posterior tibiae not 

 channeled. Sphaero derma, Steph. 



Haltica, 

 A, Body flattened. 

 a. Body oval. 



Golden-green, very sliiny ; head and legs black ; under- 

 side bronze-lilack. Thorax short, finely and very closely 

 punctured ; elytra very closely, distinctly punctured, with 

 traces of longitudinal inequalities, especially at sides. L. 

 2| 1. Common. H. coryli, All. 



h. Body oblong. 



T 2 



