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 turbatella. 
Argenteo-alba ; alee anticce punctis duobus discalibus punctisque 
submarginalibus et marginalibus nigris , vitta subtus sub cos - 
tali diffusa fusees cente. 
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. 
Masetfcem. 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. 
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. Tunza promptella. 
Mas. Schistaceo-cinerea ; alee anticce disco pallide cervino lineis 
duabus argenteis nigro marginatis , 2 a subarcuata , punctis 
duobus discalibus nigris ; posiicce albido-cinerece , flavescente 
subtindee. 
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 
