(>!)() FAMILY XXXV. OASC VLLUXK. 



Aiiclijjhirstis buoJor Mclsli.. ()l)i()iiii-(ival. piccMtus, fciiKini ]);il('r. 

 li'iijitli ;")-() mm., ranges from New York to Georg-ia. 



Suht'ainily II. HELODINAE. 



Species li'ss tliaii (i iiiiii. iti length, oeeurring on [)lants near 

 water. The following genera are nrohably represented in the 

 State : 



KEY TO INDIANA GENERA OF IIELODIN.«. 



(/. Tarsi with tlie fonrtli .juiiit vci-y sinnll. tlic tJiird Inlicd hciicatli: l'(ii-iii 

 more eloimate; aiitciiiial joints of malt' with an articiUated appen- 

 dage. II. Ptilodactyla. 

 (1(1. Tarsi willi tlie fonrlh .joint as larue or larger than the third; form 

 usually oval or hemispherical. 

 I). Hiud coxiu very large; form elougate-oval. III. Eucinetus. 

 hi). Hiud eox;e at most dilated on the inner side. 



c. Front narrowed b.v the insertion of the antenna^; prosternum dis- 

 tinct l)efore and between the front coxip. 

 (I. Tarsi slender, fourth .joint smaller than third and not prolonged 

 beneath the fifth. IV. Ectopria. 



(/(/. Tarsi slightly dilated, .ioints l*-;>-4 feebly eniarginate, the fourth 

 slightly prolonged beneath the fifth. Dicranopselapiu'.s. 



ec. Fi'ont moderately broad; prosternum very short before and very 

 narmw between the coxfe. 

 c. Third .ioint of labial palpi arising from the side of the second. 

 f. Ilind femora nornuil ; tibial spurs moderate; hind tarsi fiat 

 altave and liicarinate; color usually variegated. 

 (J. First joint of antenmne expanded. V. I'rionocypiion. 



(/(J. First joint of anteume not expanded. 



h. Hind tarsi convex above, not cariuate, third joint nor- 

 mally visible; color brownish-yellow. Microcara. 

 ////. Hind tarsi flat and bicarinate above, third joint in great 

 l)art cdiicealed b.v the prolonged upper e<lge of the sec- 

 ond joint. VI. Helodes. 

 /■/". Hind femora broad, fitted foi' jumping: spurs of hind tibiu' 

 long; color usually dull, uniform. VII. Scirtes. 

 cc. Third joint of labial pal]ii ai'ising from the end of the second; 

 tarsi convex aboxc. not cariuate; color usuall.v dull. 



VIII. Cypiion. 



II. i'Tll>()l)A(•T^•l;A Lair. 1820. rrir., "wing j toed.") 



TTead deilexed and ])ai'lially concealed from aliove by the thorax; 

 a,!ilenna' of femah» simide, Ihose ol' male with joints 4 to 10 each 

 fiu'iiished with a slenchn", artieidatcd cy!iiidiacal appendage arising 

 from the base and as lung as the joint itseU'; prosternum narrowly 



