THE LEAF BEETLES. 



1177 



L. PHYLLECTHRUS Lee. 1865. (Gr., "leaf + eating.") 



Small, elongate, nearly smooth species having the eyes oval, dis- 

 tant from the margin of the thorax; antenna* slender, 10- jointed in 

 the male of ycntilis, 11-jointed in the other species; thorax broader 

 than long, sides distinctly margined, base curved ; elytra with very 

 distinct side margins and epipleune, the latter narrow; front coxae 

 contiguous; tibia? slender, without spurs; first joint of hind tarsi 

 longer than the next two together ; claws broadly appendiculate at 

 base. One of the four species has been taken in the State and an- 

 other probably occurs. 



KEY TO INDIANA SPECIES OF PHYLLECTIIRl S. 



a. Antennae piceous and 11-jointed in both sexes, thickened toward the tip, 

 male, or filiform, female; elytra hut slightly wider than thorax. 



DORSALIS. 



aa. Antennae filiform and piceous in both sexes, but 10-jointed, male, 11- 

 jointed, female; elytra distinctly wider than thorax. 



2179. GENTILIS. 



P. dorsalis Oliv., head, thorax and under side of body yellow, 

 elytra and abdomen black, length fi mm., occurs "from Washington, 

 D. C., to Missouri and Texas." 



2179 (GS53). PHYLLECTHRFS GENTILIS Lee.. Proc. Phil. Acad. Nat. Sci., 



1SG5, 208. 



Elongate-oblong, parallel. Head, and often 

 the thorax, entirely yellow, the latter, how- 

 i>ver, usually with a broad black stripe each 

 side with the extreme margin pale; elytra 

 sometimes wholly black, more often wilh the 

 suture, side margins and apex yellow; under 

 surface and legs yellow, the former some- 

 times piceous: a nte nine piceons. the three 

 basal joints partly yellow. Thorax slightly 

 wider than long, sides nearly straight; disk 

 smooth, convex and with a vague impression 

 behind (lie middle. Elytra very finely a In 

 taceons, without punctures. Length 2.5-4 mm. 



Southern third of State, scarce; KosciusUo County only in the 

 north. May 19- June 23. Occurs on bush-clover (L<-*/n <!< :<i ) along 

 roadsides. 



Tribe X. HALTICINI. 



A large group of small or medium-si/.cd, leai'-cating forms, dis- 

 tinguished from the preceding tribe mainly by the fact that the hind 

 thighs are greatly enlarged and thickened for leaping. As a conse- 



i ( iriginal.) 



