196 CATALOGUE OF 



long and stout. Wings comparatively broad and short. Fore wings 

 acute ; costa almost straight ; exterior border hardly convex, slightly 

 oblique. 



1. Arequipa tukbatella. 



Argenteo-alba ; alee anticce punctis duobus discalihus punctisque 

 submarginalibus et marginalibus nigris, vitta subtus subcos- 

 tali diffusa fuscescente. 



Female. Silvery white. Fore wings with a submarginal line 

 formed of black points, abbreviated in front; two black discal 

 points, one more exterior than the other and nearer the costa ; mar- 

 ginal points black ; under side with a diffuse brownish subcostal 

 stripe. Length of the body 4 lines ; of the wings 11 lines. 



a, b. United States. Presented by E. Doubleday, Esq % 



Genus 22. TUNZA. 



Mas et foem. Corpus sat robustum. Proboscis nulla. Palpi 

 porrecti, compressi, vix arcuati, capitis latitudine vix breviores ; ar- 

 ticulus 3us lanceolatus, 2i triente non longior. Antennae subpecti- 

 natae. Abdomen maris alas posticas longe superans. Pedes laeves, 

 longiusculi, sat graciles. Ala? anticae lanceolatae, sat angustae, costa 

 vix convexa, margine exteriore perobliquo. i 



Male and female. Body rather stout. Proboscis obsolete. 

 Labial palpi porrect, compressed, very slightly curved downward, 

 nearly as long as the breadth of the head ; third joint lanceolate, 

 about one-third of the length of the second. Antennae slightly pec- 

 tinated. Abdomen extending much beyond the hind wings in the 

 male, much shorter in the female. Legs smooth, rather long and 

 slender ; hind tibiae with four long spurs. Fore wings lanceolate, 

 acute, rather narrow ; costa hardly convex ; exterior border slightly 

 convex, very oblique. 



1. TlJNZA PKOMPTELLA. 



Mas. Schistaceo-cinerea ; alee anticce disco pallide cervino linen 

 duobus argenteis nigro marginatis, 2a subarcuata, punctis 

 duobus discalibus nigris ; posticce albido-cinerew, Jlavescente 

 subtinctce. 



Male. Slaty cinereous. ^Palpi porrect, lanceolate, a little shorter 

 than the breadth of the head. Antennae slightly pectinated. Ab- 

 domen and hind wings whitish cinereous, with a slight yellowish 



