1865.] 241 



with a very few scattered dark scales. Head, with two faintly blackish 

 spots, faintly yellowish between the antenn:c; thoracic and abdominal 

 surface beneath, finely .scaled, whitish. Abdomen above, scarlet, with 

 a dorsal, whitish, interrupted line. Legs, whitish; outer surface of 

 middle and posterior tarsi and tibire, pale brownish. 



I find no description or locality for the species in Ilerrich-SclucfTer's 

 work. 



P'xp. % , 1.40 inch. Length of body, 1.70 inch. 



Ilabifaf.—Cuha, (Poey.) Coll. Ent. Soc. Philad. 



Xumhtr 845, Foei/'s MSS. Cafahr/uc. 



ROBINSONIA. nov. gen. 



Allied to IlalisiJofa in the shape of the wings, but differing by their 

 close squammation. and otherwise structurally throughout. Antennas 

 shorter in the male, with very long and slender pectinations, arranged 

 on loth sides of the antennal stem and converging inwardly at their 

 tips. In the female the antennae are simple to the naked eye, but in 

 reality each joint is provided with lateral tufts of rigid scales. Head, 

 small; clypeus, narrow, as is especially the epicranium, compared with 

 IhdUidota. Maxilla3 short. Labial palpi short, third aiticle short, 

 exceeding the front. Primaries narrow; external margin very obliijue; 

 internal mar<:;in short. The median r.ervules are nearer tojiether at 

 at base than in Ualisidota, especially the fourth. Secondaries reduced, 

 smaller than in Halisulota. But three median nervules. Abdomen 

 slight, not prominently exceeding the secondaries. Legs finely scaled. 



Thi.s genus should apparently fall in between Evpantltcrla and Jlali- 

 s'duta. 



Eobinsonia formula, n. s. (Plate 4, fig. 3, % .) 



% and 9 White. Primaries white, with broad, pale brown, distinct 

 bands. One along costa widening at apical third, diminishing thence 

 to apex; one along external margin, continued without interruption 

 along internal margin to base. An equally wide, slightly sinuate band 

 runs obliquely across the wing, emanating from the costal band at basal 

 third, and joining the external marginal band above internal angle. 

 Sometimes thi.s diagonal band is connected with that on the internal 

 margin, beyond its middle, by accessory brown scales. 



Secondaries, white, immaculate. Under surface, resembling upper. 

 Head, yellowish-white on the '• front" and above, between the antennjc 

 Prothoracic pieces, white, edged with brown hairs. Disc of the thorax, 

 brown, with some whitish hairs posteriorly. Tcgulaj, white, edged with 

 brown scales. xVbdomen, brownish-cinereous, darker in the male than 



