130 CATALOGUE OF 



duobus apicalibus brevissimis. Ala? elongatae, latiusculas ; anticae 

 acutse, subfalcatae, costa media subcontracta, marline exteriore 

 antico vix excavato ; posticae margiue antico subexcavato. 



Male. Body moderately stout. Proboscis obsolete. Palpi 

 porrect, sraootb, slender, extremely short. Antennae slender, very 

 minutely setulose. Abdomen not extending beyond the hind wings, 

 slightly compressed at the tip ; apical tuft small. Legs smooth, 

 slender; hind tibiae with very short apical spurs.. Wings elongate, 

 rather broad. Fore wings acute, subfalcate ; costa slightly con- 

 tracted in the middle ; exterior border very slightly excavated in 

 front, rather oblique along the hinder half. Hind wings with the 

 exterior border slightly excavated in front. 



Balaca picaria. 



Mas. Nigro-fusca ; corpus subtus, anlennce pedesque obscure 

 cinerea ; alee anticce plaga subquadrata maculaque exteriore 

 albis semihyalinis ; posticce plaga maxima alba semihyalina* 



Male. Blackish brown. Body beneath, antenna? and legs 

 dark cinereous. Fore wings with a white semihyaline subquadrate 

 patch iu the disk before the middle, and with an intersected spot of 

 the same hue in the disk at three-fourths of the length. Hind wings 

 with a very large discal patch of the same hue. Length of the body 

 6J- lines ; of the wings 18 lines. 



a. Waigiou. From Mr. Wallace's collection. 



Fam. CTENUCHID^E. 



Genus CTENUCHA. 



Ctenucha vieginica. 



Sphinx ? virginica, Charp. Ed. Esp. Exot. Schm. Sphing. Exot. 

 pi. 2, f. 3, 4 — Ctenucha virginica, Grote, Pro. Ent. Soc. Philad. 

 1863, ii. 334— Ctenucha Latreillana, Cat. Lep. HeL ii. 282. 



Ctenucha Cressonana. 

 Cressonana, Grote, Proc. Ent. Soc. Philad. 1863, ii. 64. 

 Pike's Peak, Rocky Mountains. 



