9S6 



FAMILY L . SO A B A B2EIT)ffi . 



1843 (5842). Stbigodekma arboricola Fab., Syst. Eleut, II, 1801, 174. 



Oval, subdepressed. Head, thorax and scutellum dull blackish-green, 

 shining ; sides of thorax usually in part or wholly pale ; elytra dull brown- 

 ish-yellow, often suffused with fuscous or piceous, especially on the sides 

 and along the suture ; under surface and legs piceous, sparsely clothed with 

 long grayish hairs. Head coarsely, roughly and confluently punctured. Tho- 

 rax one-half broader than long, sides feebly curved, hind angles rounded, 

 front ones acute ; surface coarsely, shallowly and rather sparsely punctate, 

 with an impressed median line on middle third and two irregular depres- 

 sions on each side. Elytra with ail the stria* distinct, entire and deeply 

 impressed. Length 10-12 mm. 



Throughout the State; frequent. May 25-July 9. Occurs 

 most commonly on the flowers of wild rose, blackberry and the 

 water willow, Dianthera americana Linn. In two specimens the 

 thorax, elytra and legs are wholly reddish-yellow. On the other 

 hand, four Lake County specimens have the thorax wholly bluish 

 black. 



XXVI. Pelidnota MacL. 1817. (Gi\, "to make livid.") 



Belonging here we have in Indiana one large, convex, robust 

 species, readily distinguished by the characters given in key. 



1844 (5844). Pelidnota punctata Linn., Syst. Nat, 1758, 350. 



Broadly oval, convex. 

 Above dull reddish-brown or 

 brownish-yellow; under sur- 

 face and legs, top of head and 

 scutellum black tinged with 

 greenish ; thorax with a small 

 round black dot each side and 

 elytra each with two or three 

 similar dots on the side. En- 

 t i r e upper surface finely, 

 sparsely and irregularly punc- 

 tured. Length 20-25 mm. (Fig. 

 406.) 



Throughout the State, 

 frequent ; less so in the 

 northern counties. Occurs 

 on the grape, both wild and 

 cultivated. The larvae live 



Fig. 406. a, larva; e, leg of same; d, tip of abdomen of same; 

 b, pupa in its cell; c, beetle. (After Riley.) 



upon decaying roots and stumps of various trees. 



XXVII Cot alp a Burm. 1844. (L., ' 'with + mole. ") 



The characters separating this genus from its allies are suffi- 

 ciently set forth in the key. One of the seven known North Ameri- 

 can species occurs in the eastern United States and Indiana, 



