MALTHACA. 287 



Wings long, narrow ; fore wings opaque, post-apical exterior to 

 apical nervulet ; hind wings hyaline in the middle. Palpi curved. 



5. C. fiilvicollis Hiibner. Glaucopis (Ctenuchci) semidiaphana Harris, 

 Cat. N. A. Sphin., 38, 4. 



Slate-colored or blackish-brown. Antennae bluish-black. Palpi, 

 basal joint ochreous, the other joints blackish. Head above, pa- 

 tagia, prothorax beneath, tegulte in front and a stripe beneath the 

 fore wings ochreous or orange. Fore wings with a luteous stripe 

 along the extreme costa. Wings with cilia of the general hue. 

 Abdomen bluish-black, scarcely metallic. 



Illinois. Mr. Kennicott. 



CLEMENS. 



GKOUP II. 



Hind wings without costal vein. Subcostal vein bifid, the lower 

 branch strongly angulated and parallel to the upper, the angle 

 giving rise to a doubly angulated discal vein, which sends off a 

 disco-central branch from the upper angle and receives the thick- 

 ened discal fold at the lower one. Median vein 4-branched. In 

 the fore wings the subcostal vein is rather remote from the costa 

 and its marginal branches are erected ; the discal with two central 

 nervules. 



MALTHACA CLEMENS. 



Fore wings rather broad, obovate; the discal cell broad behind, 

 fusiform. The subcostal vein sends two short nearly erect marginal 

 nervules to the costa, and from the superior angle of the disk arise 

 two long nervules, on a short common stalk, the lower one of which 

 is the apical, but delivered rather above the tip. The discal vein 

 is rather faint and gives rise to two disco-central nervules, the 

 upper one rather on the costal side of the wing. Median vein 4- 

 branched, the posterior nervule arising a little behind the first 

 marginal branch. The fold is thickened and the submedian shortly 

 forked at the base. Hind wings ovate ; as broad as the fore wing 

 and in length equal to that of the body. Without costal vein. 

 Subcostal is furcate, the lower branch giving rise at an obtuse 



