10 



Leiicauia Henricij Grote, Plate 1, fig. 15, primary wing. 



The wings are long and wide ; primaries with the costal edge nearly straight, 

 slightly arcuated to the depressedly acute apices ; external margin oblique ; 

 internal angle full and rounded. The fore wings above are marked with lon- 

 gitudinal shades. There are no traces whatever of the ordinary spots or lines. 

 All the veins are picked out by whitish gray scales and the interspaces streaked 

 with olivaceous ochrey. This latter darker shade obtains prominently and 

 broadly from the base of the wing, below median nervure on the submedian 

 interspace centrally, to the external margin, before which it is attenuate, leav- 

 ing the submedian fold marked by gray scales, and the region along the internal 

 margin of the wing, above and below the internal nervure, gray with scattered 

 darker scales. The interspaces between the second and fourth veins have 

 central gray shades. Again the deep olivaceous ochrey color extends along 

 the discal cell, margining the median nervure superiorly, attenuate at base and 

 widening to external margin on both sides of the fifth vein, which is as usual 

 brought into relief by pale scales. Again the darker shade is more prominently 

 perceivable on the post-apical interspace between veins 7 and 8 ; a short 

 trigonate shade. A subobsolete series of dots at the base of the white fringes. 

 Hind wings white. Beneath, whitish with costal dustings of darker scales on 

 both wings ; a faint terminal row of dark marks. Thorax beneath olivaceous 

 ochrey, as are the legs inwardly ; outwardly the tibiae and tarsi are whitish gray 

 and contrast. Antennae rather short and stout, simple, testaceous. Palpi ex- 

 ceeding slightly the front. Head and thorax above gray ; abdomen exceeding 

 the hind wings, rather long. 



Expanse, 1.50 inch. Habitat, New York State. 



Both sexes of this species are before me. Its neutral tints are 

 distinct and their contrasts on the primaries strong. It cannot be 

 confounded easily with any of our described species on account of 

 the shape and breadth of the primaries, the simplicity of the mark- 

 ings and the contrast of the tints. In the shape of the wings this 

 species resembles Meliana. 



I name the present species after my friend Mr. Henry S. Sprague, 

 to whose talent in drawing the present Article owes much value. 



Leucania evanida, Orote, Plate 1, fig. 16,'primary wing. 



S . — Allied to L. Henrici, but difiers by its narrower wings ; the primaries 

 have the costal edge straighter ; about internal angle the wing is not so full, 

 less roundedly produced ; the internal margin is straighter and the wing is 

 less developed below the internal nervure. There is a great similarity be- 



