690 



FAMILY XXXV. D AS C YLLI DM . 



Anchytarsus bicolor Melsh., oblong-oval, piceous, femora paler, 

 length 5-6 mm., ranges from New York to Georgia. 



Subfamily II. HELODINAE. 



Species less than 6 mm. in length, occurring on plants near 

 water. The following genera are probably represented in the 

 State : 



KEY TO INDIANA GENERA OF HELODIX-E. 



a. Tarsi with the fourth joint very small, the third lobed beneath ; form 

 more elongate: antenna] joints of male with an articulated appen- 

 dage. II. Ptilodactyla. 

 oa. Tarsi with the fourth joint as large or larger than the third; form 

 usually oval or hemispherical. 

 J). Hind coxae very large; form elongate-oval. III. Eucinetvs. 

 1)1). Hind coxae at most dilated on the inner side. 



c. Front narrowed by the insertion of the antenme ; prosternum dis- 

 tinct before and between the front coxae. 



d. Tarsi slender,- fourth joint smaller than third and not prolonged 



beneath the fifth. IV. Ectopeia. 



dd. Tarsi slightly dilated, joints 2-3-4 feebly emarginate, the fourth 

 slightly prolonged beneath the fifth. Dicbaxopselaphes. 

 cc. Front moderately broad; prosternum very short before and very 

 narrow between the coxae. 



e. Third joint of labial palpi arising from the side of the second. 



f. Hind femora normal ; tibial spurs moderate ; hind tarsi flat 

 above and bicarinate: color usually variegated. 

 g. First joint of antennas expanded. V. Pbioxocyphox. 



gg. First joint of antennas not expanded. 



li. Hind tarsi convex above, not carinate. third joint nor- 

 mally visible : color brownish-yellow. Microcara. 

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

 part concealed by the prolonged upper edge of the sec- 

 ond joint. VI. Helodes. 

 ff. Hind femora broad, fitted for jumping: spurs of hind tibia} 

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

 ee. Third joint of labial palpi arising from the end of the second ; 

 tarsi convex above, not carinate: color usually dull. 



VIII. Cyphox. 



II. Ptilodactyla Latr. 1829. (G-r., " wing + toed.") 



Head deflexed and partially concealed from above by the thorax ; 

 antenna? of female simple, those of male with joints 1 to 10 each 

 furnished with a slender, articulated cylindrical appendage arising 

 from the base and as long as the joint itself: prosternum narrowly 



