THE IjEaf beetles. 1165 



elytra elongate, parallel, distinctly margined at sides, the epipleura? 

 narrow; color in our species brown with dull yellow stripes; tarsal 

 claws of naalcs narroM'ly bifid at tiji, of females more bnjadly bifid 

 behind the tip. Three species have l:>een taken in the State, while 

 another perhaps occurs. 



KEY TO I.\DT.^.NA SPECIES OF TBIEHABDA. 



a. Thorax more than twice as wide as long; epiplenra of female piceous. 



I!1."i7. BREVICOLUS. 



ail. Thorax not twice as wide as lon^: eiiiplenra always pale. 



y. Elytra very densely and finely pnnctuved, the i)nnctures so dense ns 

 to be ludistinct as such ; black stripes of elytra united near tips, 

 c. The yellow diseal stripe of elytra broader at li.ise. gi-adnally nar- 

 rowed to tip, and extending only three-fourths to ape.x. 



TOMEKTOSA. 



cv. The yellow stripe broad, parallel and entire. 21 "iS. canadensis. 



6&. Elytra closely punctate but the punctures distinctly sejiMrated; black 



stripes of elytra not united near tips. 21511. virgata. 



21.57 (0S97). Tkirhabda brevicollis Lee, rvnc. Thil. Ac-.'id. Nat. Sri., isr,.",. 

 221. 

 Elongate-oval. Head and thorax dull yellow, the former with a small 

 black spot (in vertex; the latter with three irregular fusccnis sputs, the mid- 

 dle one often forked or cordate, sometimes wanting; elytra dull yellow with 

 a common sutural piceous stripe, broad at base and gradually narrowing to 

 apex, eaeli also with a piceous stripe extending from humerus nearly to 

 tip, then curving, and .ioining the sutural in the male; antemiiB piceous, the 

 three basal .ioints in part pale; femora yellow, tibia' on outer side and tarsi 

 liiceous. Thorax with sides obtusely angulate; disk with a rather deeji 

 -ubli(ine iniiiressiiiu each side. Elytra closel.v and finely punctate. Length 

 S.ri-li.fi mm. 



Dekall), Viyo, Putnam and Jiarion counties; frequent locally. 

 June "^S-September 121. Occurs cs|iccially on Icsnis of prickly as'i. 

 Xanihoxi/luiii ami riraiunn IMill. 



T. Iniiifniiisa Linn., length 8.5-10 mm., occurs alnindantly on the 

 Atlantic coast from Long Island to Florida. It is herewith in- 

 cluded as the range of hrrvirollis was given "Sci coast Floi-ida t' 

 Texas," and one is as likely tn occur in Indiana as the other. 



21.'iS ((i.'<!)2IO. TRiRHAiaiA cANAiiEXSis Kirliy. Faun. Bor. .\mer.. lA', ^^^^7. 

 219. 

 Elongate-olilong, slightly lircader behind. Head and thorax dull yel- 

 low, the former with a black spot (ai vertex; the latter with an oval cen- 

 tral S|iot .-ind a round one each side; el.vtra with margins and a broad dis- 

 eal stripe dull .yellow, the black striiie on side broader behind the middle, 

 then narrower at a)iex and incurvin'^ to .ioln tlic sutural; antenna^ incenns, 

 the basal joints partly dull yellow ; legs pale yellow, the tarsi dusky. Tho- 



