156 CATALOGUE OF 



have a thick tuft of plumes on each towards the tips. Palpi squa- 

 mous, obliquely ascending", not lon^ ; second joint slightly curved, 

 not furnished at the base with a fan-shaped tuft ; third lanceolate, 

 less than half the length of the second. Antennae rather slender, 

 minutely setose and pubescent. Abdomen not or hardly extending 

 beyond the hind wings. Legs rather long and stout, slightly pilose ; 

 spurs long. Fore wings narrow, hardly convex along the costa, 

 acute at the tips, very oblique along the exterior border. Hind 

 wings semivitreous. Female. — Head unarmed. Palpi simple. 



1. Macalla Thyrsisalis. 



Mas et fcem. Cervina, subtus albida ; maris cornua nigra plu- 

 mosa ; palporum articulus 2us albido fasciculatus ; aim anticce 

 apud marginem exteriorem subnigricantes , disco albido semi" 

 hyalino, macula apud marginem interiorem basalem e sguamis 

 nigris, linea exteriore valde denticulata punctisque marginalia 

 bus nigris, orbiculari et reniformi nigris, hac parva ; posticce 

 alba?, subvitrea, linea marginali nigra. 



Male and female. Fawn-colour, whitish beneath. Horns of 

 the male with black plumes. Palpi with a whitish tuft on the 

 second joint. Fore wings whitish and semitransparent in the disk, 

 with a blackish tinge along the exterior border ; a spot composed of 

 deep black flecks on the interior border near the base ; exterior line 

 black, much denticulated ; marginal points black ; fringe with 

 blackish marks ; orbicular and reniform marks black, the latter 

 small. Hind wings white, nearly vitreous, with a brown marginal 

 line, which is dilated at the tips. Length of the body 5 lines ; of 

 the wings 12 lines. 



a — g. Honduras. From Mr. Miller's collection. 



Genus 22. ORTOPLA. 



Mas. Corpus valde robustum et pilosum. Palpi validi, erecti? 

 longiusculi, dense fasciculati ; articulus 2us subarcuatus; 3us lan- 

 ceolatus, 2o valde brevior. Antennas crenulatae apices versus sim- 

 plices. Abdomen subtumidum ; latera lanuginosa. Pedes validi, 

 dense fasciculati, calcaribus longissimis. Alae anticae squamosa?, 

 costa apud medium dilatata et angulata apicem versus oblique 

 truncata ; posticae subdenticulatae, versus angulum interiorem sub- 

 excavatae. 





