154 Lepidoph rological Misa ttan '<< s. 



Genus Cataclysta. Hiibner. 



Cataclysta birasciali*. sp. nov. (Plate 1, fig. 4.) 



Head, thorax, palpi, and antenna white. 



Anterior wings white, with two parallel, straight, pale ochre- 

 ous bands across tlie middle, the margins of which are irregu- 

 lar. There is a v-like ochreous mark just before the apex, 

 enclosed by a similar larger mark, the base of which rests on 

 the internal angle, the outer limb running along the margin to 

 the apex, the inner limb attaining the costa at apical third. 

 The wings are dusted with blackish scales, except the spaces 

 between the double markings, which are either pure white or 

 intermixed with silvery. 



Posterior wings white, with an ochreous patch on the disk, 

 which appears like a broken continuation of the bands of the 

 anterior pair, excepl that it is filled in centrally with blackish 

 and metallic scales. Beyond, a short blackish streak above the 

 middle runs parallel with the outer margin, but does not reach 

 it. A small ochreous patch at anal angle, tilled in with black 

 scales. The outer margin, from the middle to the tip, broadly 

 margined with black, filled in with five irregular aggregations 

 of shining metallic scales. Fringes of both pairs of wings 

 white. 



Under surface of both pairs white, the anterior wings freely 

 dusted with fuscous scales. The black terminal band of the 

 upper surface of the posterior pair is reflected beneath in a 

 terminal row of rounded black spots, separated by aggregations 

 of metallic scales. 



Expanse, 1 •"» 1 7 millimetres. 



Habitat. — Texas, July 7th. (Belfrage.) 



Closely allied tor. qpulentalis, Lederer (Wiener Ent. fcfonat- 

 Bchrift, vii., p. l s, '> ; Plate L 8, fig. 7), in which species the v-like 

 mark on the anterior pair i> Singh . and there i< no Sub terminal 

 short black streak' on the posterior wings. 



