THE LEAF BEETLES. 1145 



third joinls (miujiI. tlic roiirth ;is lonu' ;is fif'tli. Each elytron has 

 eleven stri.e. sev(>ii of which arc i)ct\vccM the suture and tlie nni- 

 ))on(>. while \\\r I'uii Dai'iillcl willi the si(h' i!iafi;in. IJctwccn these 

 two sets, thai is, just outsiiU' tlie stventh, ai'c two shoi-t stria* which 

 heii'iii fi'oiii a couunon ])oint Ix'hind th(» uinhone. These arc the so- 

 called "sliort stria'" of the key. 'IMie species I'escinhle the eoiiuiiou 

 and variable 'l' jipoplio) \is (nmlhis. l»ut arc mostly lai-iicr and much 

 more cotistanl iti eoloi'. l<'i\f species have heeu taken in the Stale, 

 wliilc one ollici- |)erliaps oeiins. 



KKV TO INDIANA SI'KCIIOS OK M I ; lAC 1 1 UOM A. 



(/. 'riKir.-icic ]Miii(liir('s. wlu'ii iti'escni. i-duiid. not sli'i.uose. 



h. Sittiiic lietwt'eu tlie clyiu'iis iUitl front olililt'i-ntcd. tlie <,q-o<)V(" iihove 

 the eye not extendini; on tlie trout. 

 c. llf;i(l ,111(1 llinr.-ix iiioro or less puiietnto. 



<l. I'oriii iiioro or U'ss ov.-il: thorax with very (lislinct side iii:ir,t;iiis 

 which, wlicn viewed from the sides. :ire convex downward. 

 c. Sixtli to eleventh stri;e of elytra much confused; thorax one- 

 half wider than lonu;. sides ft'ehly curved; elytra dull yellow. 



HH'O. AN'tiCSTUIATM. 



<c. Stria' of elytra ret^ular i'Xi-ept the two short ones; thorax 

 nearly twice as wide as kvn.ij, its sid^s stron;_dy curved; ely- 

 tra dull yellow with ohlon,;; dark spaces. 



iMLM. INTKRRUPTUM. 



lid. [■"orni jiarallel; thorax very tV'chly mar.^Miied on sides, the mar- 

 .i,niis straiudit ; color mainly jiiceous. 2122. i*akai.lki,i'm. 



re. Head and thorax almost entirely smooth; color dull yellow. 



r.ICVICOLLK. 



hh. Suture hetweeii i-lyjieus and front distinctly Ki'ooved and formed liy 

 the ohli(ine extension of the f^roove above the eye; color dull yel- 

 low; elytral imiictures coarse and in reLiular rows. 



212.",. PALLIDIM. 



(/(/. Thorax densely and strii^osely punctate; color mostly iticecms. elytra 

 sometimes with reddish spots; elytral ininctures tine and more or 

 less irregular. 2124. qiicrcatum. 



2120 (C.T.'i.'j). Mktachroma anuustulum Crotch, I'roc. IMiil. .\cad. Nat. 

 Sci.. IS?:!. 41. 

 (»liloii.u'-<>val. rpper surface, le.iis and hase of antenna' dull yellow; un- 

 der surface iiiceous; outer six joints of antenna' hiack. Head sparsely punc- 

 tate, more coarsely and closely on clyiieus. 'I'horax one-half widei' than 

 loll,l,^ sliuhlly narrowed in front; disk convex, sparsely and rather tinely 

 imiictate. i;iytra with the lirst three to five rows of ])uiictures rej,'ular or 

 nearly so. the others much confused, especially toward the apex; intervals 

 smooth. l.en.i;tli d (;.."» mm. 



1 akc, l*ort(r, Starke and Posey counties; scarce, dnne 5-Jiily 

 8. Be:-iten from dead willow. A species of western rant-'c. there- 

 foi-e iiroliably Id be fdiiiid only in the western portion of the State. 



