THE LEAP BEETLES-. 



113(3 



KEY TO INDIANA GENERA OF EUMOIPINI. 



a. Front margin of thorax beneath curved, forming lobes behind or below 

 the eyes. 

 &. Body above pubescent or scaly. 



c. Thorax without distinct margins on sides; form subquadrate; ely- 

 tra brown or black. XX. Anoxrs 

 cc. Thorax with distinct side margins. 



(I. Margins of thorax dentate; front tibiae toothed on inner side near 

 apex. XXI. Myochrous. 



(Id. Margins of thorax entire; front tibiae simple. 



XX II. G LY PTOSCELIS. 



bb. Body above not pubescent or scaly. 



e. Elytra! punctures in distinct, regular rows; middle and hind tibiae 

 emarginate on outer edge near apex. (Fig. 490.) 



XXIII. Typophorus. 

 re. Elytra! punctures confused or irregular; tibiae all entire. 



/. Bluish-green, shining ; tarsal claws divergent ; legs dark. 



XXIV. Chrysochi s. 



//. Brown; tarsal claws divaricate; legs pale. XXV. Tymnes. 



aa. Front margin of thorax beneath straight. 

 g. Thorax without distinct margins on sides. 



h. Body above not metallic; head without a groove above the eyes. 



i. Thorax transverse; front thighs with a small tooth; third joint. 



of antennae not longer than second. XXVI. Xanthonia. 



ii. Thorax cylindrical ; thighs not toothed ; third joint of antennae 



longer than second. XXVII. Fidia. 



hh. Body above metallic green or bronzed; head with a groove above 

 the eyes: length less than 4.5 mm. XXVIII. Graphops. 



gg. Thorax margined on the sides. 



Head with distinct grooves above the eyes ; middle and hind tibia? 

 emarginate near apex. XXIX. Metachroma. 



././'. Head without grooves above the eyes. 



Jc. Side margins of thorax irregular or undulating. 



I. Presternum narrow, contracted between the coxae. 



XXX. Colaspis. 



II. Prosternum wide, its sides nearly parallel. 



XXXI. Rhabdopterus. 

 fcfc. Side margins of thorax regular and entire. 



m. Third joint of antennae distinctly longer than second, the outer 

 five joints not abruptly wider. XXXII. Nodonota. 



mm. Joints 2 to 5 of antenna- very nearly equal in length, the outer 

 five joints rather abruptly wider ; form nearly globose : tho- 

 rax without basal marginal line. Chrysobixa. 



XX. Adoxus Kirby. 1837. (Gr., 1 1 without + glory. ") 



A single species represents this genus in Europe and the north- 

 ern United States. 

 [72—23402] 



