1162 FAMILY Lni. CriBYSOMELID^. 



Tribe IX. GALEBUCINI. 



Small or medium-sized leaf-eatina: beetles, having usually a 

 somewhat oblong form and a softer bodj^ covering than in those 

 tribes already treated. All of them agree in having the head ex- 

 posed ; antennse placed upon the front between the eyes and there- 

 fore close together at base, the third joint usually smaller than 

 fourth ; eyes not emarginate, finely granulate ; thorax truncate or 

 emarginate in front, with the sides distinctly margined; elytra 

 longer than abdomen; presternum very narrow, usually invisible 

 between the front coxm, which are therefore contiguous; hind 

 femora slender, adapted for walking; hind tibiae usually vnthout 

 terminal spurs; tarsi slender, not retractile. 



Many members of the tribe are very injurious to vegetation, 

 among them being the striped cucumber beetle, the long-horned 

 corn beetle and the imported elm-leaf beetle. The principal papers 

 treating especially of the genera comprising the tribe are as follows : 



LeContc. — "On the Species of Galenica and Allied Genera in- 

 habiting North America," in Proc. Phil. Acad. Nat. Sci., 

 1865, 204-222. 

 Horn. — "The Galerucini of Boreal America," iii Trans. Amer. 



Bnt. Soc, XX, 1893, 57-136. 

 Horn, in the paper last cited, recognized 20 genera as belonging 

 to the tribe. Of these 12 are known to be or should be represented 

 in the State, 



KEY TO INJ)IANA QENEEA OF GAU5RUCINI. 



a. Front eoxal cavities closed behind. 



1). Tarsal claws appendiculate, i. e., with broad expansion at base; tibise 



with spurs ; smaller, not over 7 mm. 



c. First joint of antennse longer than fourth, third joint elongate; 



elytra dull red or yellow with black sjiots. XLII. Ceeotoma' 



cc. First joint of antennae not longer than fourth, third joint shorter; 



elytra metallic blue or greenish. Agelasa 



bJ>. Tarsal claws bifid; front and hind tibim without spurs; larger 9 or 



more mm. -,^t ttt /-, ' 



„ „ ^ , XIjIII. Galeruca. 



an. iront eoxal cavities open behind, 



rf, Olaws of tarsi bifid or simple, 



e. All the tibire without terminal spurs. 



/. Epipleurae short, s.aroely passing I he mid.lle ,4' elytra- elytr-i 

 metallic blue with a dull yellow median crossbar, 'monocfstv 

 Jl. lOpii.Ieura' Icng. vcnchin,;;- nearly I,, lips ,,r elyh-a 



0. Antenm^ longer than hajf the body; tarsal claws deeply bifid 

 in both sexes. 



