22 GROTE AND ROBINSON. 



Expame, % 9 , 1.10 — 1.15 inch. Length of hof?i/, 0.50 inch. 



Habitat. — Atlantic District. (New York 16 Penna. !) 



A conitnon and variable species as to its general coloration, and the 

 distinctness of the markings of the upper surface of anterior wings. 

 The coloration is, however, uniformly distributed, and thus the paler, 

 more ochreous individuals are easily identified from the constancy of 

 the main characteristics of the species; among the specific characters 

 easily seized, are the longitudinal stripes of the inferior abdominal sur- 

 face, a character to which we have alluded in the choice of the specific 

 name. 



Botys ventralis, nob., resembles Tholeria illiberalis, H'dhncr^ Zutr. 

 3tes Hund., No. 175, p. 27, figs. 349 — 350, but is a smaller species, 

 and wants the terminal white dots on the upper surface of primaries, 

 while the extra mesial line of white dots is straighter and nervular in 

 the South American species. 



Botys posticata, n. sp. (Plate 2, fig. 25, % .) 



% . Head and thorax above, pale ochreous brown. Labial palpi, 

 prominent, beneath with a few whitish scales, laterally concolorous 

 with head and thoracic region above. Abdomen, very pale obscure 

 ochreous, beneath paler, whitish, as are the legs and under thoracic 

 surface. 



Win"-s, shaped nearly as in Botys ventralis. Anterior pair ochreous 

 brown, becoming of a clearer and brighter brown along costa and ex- 

 ternal margin. Ornamentation simple; an inner, transverse, sinuate, 

 blackish shade line ; two ill-defined, discal, dark maculations, of which 

 the outer, the larger; an oblique, finely dentate, transverse, posterior, 

 dark shade line, outwardly projected opposite the disc, succeeded by a 

 coincident pale shade. An obsolete series of interspaceal dots on the 

 margin. Fringes, silky, discolorous with the wing, being of an ob- 

 scure wood-brown. Beneath, whitish ochreous; the blackish mark- 

 ings of the upper surface repeated less distinctly. Secondaries, brown- 

 ish testaceous, semi-transparent, dark shade along external margin ; 

 very faint traces of a median, diffuse, dark shade line. Under surface 

 resembling upper, but paler, more ochreous. 



EjcpanKc, % . 0.90 inch, LeiKjtli of boihj^ 0.40 inch. 



Habitat. — Atlantic District. (Penna !) 



Varies by the primaries being of an even, bright brown above, ob- 

 scurin"; the ornamentation. 



