TRIFIDyE. 323 



Larv^ twiglike, flattened beneath. 

 PuPiE subterranean. 



1. M. oxyacanthae, X.— Expanse U to If inch. 

 Thorax much squared, lappets large ; fore wings rosy-brown, 

 dusted upon and near the nervures with glistening green ; 

 a black streak from the base, and a curved clear white streak 

 above the anal angle ; hind wings smoky pale brown. 



Antennas of the male shortly pectinated with small, solid, 

 closely placed teeth, which are minutely ciliated, light brown ; 

 palpi very short, almost obscured by dense tufts of long 

 scales, rich brown ; apical joint very slender, dark brown, 

 tipped with white; head densely covered with long rich 

 brown scales, and having a large raised tuft at the back of 

 the antennae ; collar broad, purple-brown, with a curved black 

 transverse bar below the middle ; thorax much squared, the 

 shoulder lappets being raised at the back and sides, and the 

 shoulder portions extended, whitish-brown, edged with pur^jle- 

 brown ; rest of the thorax rather flattened, purplish-brown, 

 dusted with white, the scales at the back drawn together into 

 a flat tuft or crest of rich purple-brown ; fascicles pale 

 reddish-brown; abdomen glossy golden-brown, the dorsal 

 ridge ornamented with three or four conspicuous chocolate- 

 coloured crests ; lateral tufts thick and spreading, anal tuft 

 rather small. Fore wings very broad behind ; costa faintly 

 curved ; apex bluntly angulated ; hind margin filled out in 

 the middle, crenulated, rounded ofi: below the middle, and 

 the two hollows between crenulations next the anal angle 

 decidedly more excavated than the rest, throwing out the 

 angle to a point ; dorsal margin very gracefully curved ; 

 colour light chocolate-brown, clouded with darker, and dusted 

 with glistening green ; basal line absent ; a short black line 

 from the middle of the base lies beneath the median nervure; 

 first line very near the base, slender, black, formed into two 

 large curves,which are divided by the black line from the base ; 

 second line extremely faint, oblique, slender, chocolate-brown, 



