778 FAMILY XXXIX. BUPKESTID.K. 



and cyliiKli'ica!. with three paii's of short. \vi(h'ly sei)arate(l legs. 

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



The two principal ])ai)ers treating of the North American forms 

 are as follows: 



LcCo)itc. — "Revision of the Bui)restid;v of the United States," 

 ill Trans. Amer. Phil. Soc, XI, 1859, 187-258. 



Cioh'Ji, G. B. — "Notes on the Species of Buprestida', found in 

 the United States," in Proc. Phil. Acad. Nat. Sci., 1873, 

 84-06. 



In addition to these, monogra.phs oi- synopses of several of the 

 principal genera have a])peared and will be mentioned nnder the 

 proper heading. 



Nearly 5,()()() species of Bnprestida- are known, onl}' abont 300 of 

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

 tirst divided into tribes, and these, in tnrn, into genera. Of the six 

 tribes recognized in the North American fauna, representatives of 

 I'onr occnr in Indiana. 



KEY TO INDIANA TRir.ES OF BUPRESTID.E. 



a. Ilhid (•(ix;i' with the phites distinctly dihated near base, cut oft' on the 

 outer end hy the prolongation of the abdomen; their front margin 

 straiglit, liiud margin oblique; fourth tarsal .ioint not lobed. 



Tribe I. Buprestini, p. 778. 

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



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

 tenna\ 

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



Tribe II. Julodini, p. 7912. 

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



Tribe III. Mastogenini, p. 795. 



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



the antennas form slender. Tribe IV. Agbilini, p. 795. 



Tril)e I. BUrRESTINI. 



To tliis tribe bcbHig' our largest and also some of the smaller spe- 

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

 by the charactei's given above and by the mesosternum being always 

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

 is formed botli by the meso- and metasternum. Nine genera are 

 known to be i-epresented in Indiana, while another may occur. 



KEY TO INDIANA GENER.\ OF BUPRESTINI. 



(/. rrostcnial spine obtusely angulated liehind the front coxte ; epimera of 

 metathorax triangular, uncovered; scutellum small. 

 b. Mesosternum and metasternum closely united; anleimal pores scat- 

 tered over the sides of the .ii'ints; size large, 19 or more nun. 



I. Chalcophora. 



