26 Mr. A. G. Butler on Heterocerous Lepidoptera 



abdomen darker, excepting at the base ; under surface 

 similar. Expanse of wings, 47 mm. 



Las Zonas ; February. 



A distinctly warmer-coloured species than D. pallens. 



40. Dalaca pallens. 



$ . Hepialus pallens, Blanchard, in Gay's 'Chili,' 7, 

 p. 69; pi. 4, fig. 5 (1854). 



Two males and one female. 



This species is not the immaculate insect represented 

 by Blanchard, as his diagnosis *' pimctis minutis obscuri- 

 orihus adspcrsis" sufficiently shows in contradiction to 

 his figure ; the primaries are in fact greyish fuliginous, 

 marbled with whitish spots, upon w^hich are black dots ; 

 this is true of both sexes, though the pattern is most 

 prominent on the males. 



41. Dalaca violacea, n. s. 



S . Primaries slaty grey, glossed with violet ; costal 

 markings much as in D. snhfervens ; a small irregular 

 testaceous patch, much like the Greek letter XI filled in, 

 at the centre of the disc, and upon it two brown dots ; 

 an irregular longitudinal abbreviated dark brown line, 

 \yith chestnut-red superior border and pale yellow inferior 

 margin at about the centre of the interno-median inter- 

 space ; a few black dots along the outer margin ; fringe 

 reddish testaceous ; secondaries greyish brown, with 

 slight bronze reflections and sandy brown fringe ; thorax 

 purplish brown ; antennae smoky brown ; abdomen 

 greyish brown, sericeous ; wings below greyish fuliginous, 

 with sandy yellowish fringes ; primaries with sandy 

 yellowish or testaceous costal border, on which are one 

 or two black dashes ; body below whitish. Expanse of 

 wings, 32 mm. 



One male. 



42. Dalaca )nannorata, n. s. 



Primaries cream-coloured, divided into spots and 

 patches by intersecting irregular greyish brown bands 

 and patches, on which are black markings somewhat as 

 follows : the basal two-thirds of costal area, a disco- 

 submarginal confluent series of almost square spots 



