778 FAMILY XXXIX. BUPKESTID/E. 



and cylindrical, with three pairs of short, widely separated leg's. 

 These live in leaves and soft twigs and are known as leaf miners. 



The two principal papers treating of the North American forms 

 are as follows: 



LiCiJii/i'. "Revision of the Bnprestida- of the United States," 

 in Trans. Amer. Phil. Soc., XI, 1850, 187-258. 



Ci'olcJi, 0. Ii. "Notes on the Species of Buprestidai found in 

 the United States," m Proc. Phil. Aead. Nat, Sci, 1873, 

 84-96. 



In addition to these, monographs or synopses of several of the 

 principal genera have appeared and will he mentioned under the 

 proper heading. 



Nearly 5,000 species of Buprestida? are known, only alxmt 300 of 

 which are from the United States. For convenience the family is 

 first divided into tribes, and these, in turn, into genera. Of the six 

 tribes recognixed in the North American fauna, representatives of 

 four occur in Indiana. 



KEY TO INDIANA TRIP.ES OF BUPRESTIDA. 



w. Hind coxa' with the plates distinctly dilated near base, cut off on the 

 (inter end by the prolongation of the abdomen; their front margin 

 straight, hind margin oblique; fourth tarsal joint not lobed. 



Tribe I. BUPRESTINI, p. 778. 

 (/(/. Hind coxal plates scarcely dilated internally or near base. 



1). Thorax lobed at the base; front narrowed by the insertion of the an- 

 tennae. 

 c. Mesosternuru emarginate, not divided; species larger, 5-11 mm. 



Tribe II. JULODINI, p. 7! Hi. 

 cc. Mesosteruum scarcely visible; species smaller, not over 3 mm. 



Tribe III. MASTOGENINI, p. 705. 



hl>. Thorax truncate at base; clypeus not narrowed by the insertion of 

 the antenna 1 : form slender. Tribe IV. AGRILINI. p. 795. 



Tribe I. BUPRESTINI. 



T:i this tri!>" belong our laruvst and also some of the smaller spe- 

 cies. They are more or less flattened in .form and are distinguished 

 by the characters given above and by the nu'sosternnm being always 

 divided so that the cavity for the reception of the prosternal spine 

 is formed both by the meso- and rnetasternum. Nine genera aiv 

 known to be represented in Indiana, while another may occur. 



KEY TO INDIANA OKNKRA OK lU'PRESTINI. 



(i. Prosternal spine obtusely angulated behind the front coxse ; epimera of 



metathorax triangular, uncovered; scutellum small. 

 7>. Mesosternuin and metasternum clnsely united: antennal pores scat- 

 tered over the sides of the joints; si/e large. 1!> or more mm. 



I. CHALCOPHORA. 



