OKTHOPTEEA OF INDIANA. 253 



h. Median carina of pronotum cut by but one sulcus. 



c. Disk of inner wings pellucid or ti-ansparent, uot distinctly 

 bounded by a blacliish border. 



d. Pronotum with its disli roof shaped, the sides sloping- 

 downward; its dorsal front margin plainly angu- 



late. Hind femora without dai-k cross bars 



XXVI. Chortophaga, p. 257 

 (Id. Pronotum with its disk flat; its dorsal front margin 

 truncate. Hind femora with dusky cross bars on 

 their outer face. 



c. Frontal costa of male strongly sulcate through- 

 out their full length; median carina of pro- 

 notum distinct, higher on prozona than on 

 metazona, distinctly cut by the principal sul- 

 cus XXVII. ENCorTOLOPHUs, p. 260 



ee. Frontal costa of male but slightly sulcate just 

 below the ocellus; median carina of pronotum 

 low, of equal height tlu-oughout, faintly cut by 

 principal sulcus. .. .XXVIII. Camnula, p. 261 

 cc. Disk of inner wings opaque, red, orange, black or yellow in 

 color; when not black, distinctly bounded with a black- 

 ish border. 



f. Body, especially that of female, robust. 

 Pronotum with the lateral carinae ex- 

 tending in front of the principal sulcus 

 and not cut by that sulcus; its disk often 

 with numerous tubercles; inner wings 

 red or yellow; tegmina usually with a 



number of large dark colored spots 



XXIX. Hippiscus, p. 263 

 ff. Body more slender, often compressed. Pro- 

 notum with the lateral carinae extending 

 only to the principal sulcus and cut by 

 it; its disk with but few if any tubercles; 

 inner wings black or pale yellow; teg- 

 mina with numerous small dark spots 

 which are sometimes united into cross 

 bars. 



g. Inner wings black with a yellow bor- 

 der XXX. DissosTEiRA, p. 272 



(ig. Inner wings yellow, with a fuscous 



curved median band 



XXXI. Spharagemon, p. 275 

 hh. Median carina of pronotum cut by two sulci, the front notch 



often less distinct than the hind one 



h. Antennae of male shorter than hind femora, the basal 

 joints not strongly flattened. Frontal costa at all points 

 above the ocellus, wider than the basal joints of an- 

 tennae. 



