TRIBE I. — GALEATINI. 473 



antennals stout, first and fourth usually subequal in length, 

 three times or more the length of second, third more than 

 twice as long as the others united ; pronotum with hood small, 

 compressed, covering base of head ; paranota rather widely ex- 

 panded, reflexed, not produced or angulate in front ; pronotal 

 disk with three low subequal carinse ; elytra widely flattened, 

 surpassing abdomen by nearly half their length, their margins 

 narrowed and rounded near base ; rostral groove deep, sides 

 parallel to middle coxae, then closed by a sinuous cross carina, 

 behind which the groove is much widened ; osteolar opening 

 distinct. About 25 species are known, five of which occur in 

 the eastern states. 



KEY TO EASTERN SPECIES OF GARGAPHIA. 



o. Head with basal spines long, distinctly visible in front of hood; outer 



margins of paranota more or less rounded, not angulate at middle; 



length, 4 or more mm. 



b. Joint 1 of antenna? dull yellow; paranota with margins broadly 



rounded and with but three or four rows of cells. 



c. Apical angle of discoidal area of elytra with apex at middle; hood 



slightly lower than median carina. 435. tili^e. 



cc. Apical angle of discoidal area with apex on the outer side; hood 



slightly higher than median carina. 436. amorphic. 



bb. Joint 1 of antenna? black; paranota with margins narrowly rounded 



and with five rows of cells at the widest part. 437. solani. 



aa. Head without basal spines, or if present very short, not visible in 



front of hood ; outer margins of paranota distinctly angulate ; 



length, less than 3.5 mm. 



d. Costal area of elytra, at widest, part with four rows of cells; joint 



1 of antenna? dull yellow. 438. angulata. 



dd. Costal area of elytra with not more than three rows of cells; joint 



1 of antenna?, except tip, dark brown. 439. bimaculata. 



435 (654). Gargaphia tille (Walsh), 1864, 408. 



Elongate-oval. Body black, covered with a whitish bloom; last 

 ventral in part brown ; antenna?, buccula?, sides of sternal groove, beak and 

 legs, dull yellow, fourth antennal and tips of tarsi dark brown; nervures 

 of upper surface straw-yellow, the cells hyaline; pronotum black, pubes- 

 cent, its posterior prolongation pale; elytra usually with a vague blackish 

 cross-bar in front of middle, this formed mainly of darkened nervures. 

 Head with five long acute spines. Paranota broadly rounded, moderately 

 reflexed, each with four irregular rows of cells. Discoidal area coarsely, 

 closely punctate, not quite reaching middle of elytra, usually with seven 

 rows of cells. Length, 4.2 — 4.8 mm. 



Kosciusko, Marion, Vigo, Lawrence and Posey counties, Ind., 

 April 22 — Sept. 22; probably occurs throughout the State. 



