LEPIDOPTERA HETEROCERA. 
201 
length of the labial palpi, to which they are closely applied. An- 
tennas stout, densely setulose. Abdomen hardly extending beyond 
the hind wings. Legs stout, rather short ; femora and tibiae pilose ; 
fore femora and fore tibiae mostly densely tufted; hind tibiae with 
four long spurs. Fore wings elongate, acute, rather broad ; costa 
straight; exterior border convex, rather oblique'. 
This genus has an affinity to the Noctuites. 
1. Pharga fasciculella. 
Mas. Pallidissime straminea ; alee anticee fusco conspersee , puncto 
nigro discali interiore , linea obliqua fuscescente postice obso - 
leta , linea submar ginali pallida valde indistincta , punctis 
marginalibus nigris ; posticce pallidiores , punctis marginali- 
bus fuscis. 
Male. Very pale straw-colour. Fore wings very minutely 
brown-speckled ; a black point in front of the interior part of the 
disk ; a brownish oblique line extending from the tips, obsolete 
towards the interior border, pale-bordered on the outer side ; a pale 
very indistinct submarginal line; marginal points black. Hind 
wiugs paler ; marginal points brown. Length of the body 7 lines ; 
of the wings 18 lines. 
a. Venezuela. From Mr. Dyson’s collection. 
Genus 29. ARUCHA. 
Mas. Corpus gracile. Fasciculus frontalis productus. Palpi 
porrecti, lanceolati, elongati, angulati ; articulus 3us brevis, graeil- 
limus. Antennae robustae, glabrae. Abdomen alas posticas sat su- 
perans ; fasciculus apicalis minimus. Pedes graciles. Alae anticae 
angustae, acutae, margine exteriore subcon vexo perobliquo. 
Male. Body slender. Frontal tuft prominent. Proboscis 
distinct. Labial palpi porrect, lanceolate, nearly twice longer than 
the breadth of the head ; second joint hardly ascending; third joint 
very slender, inclined downward, about one-fourth of the length of 
the second, with which it forms a distinct angle. Antennae stout, 
smooth. Abdomen extending rather beyond the hind wings; apical 
tuft very small. Legs smooth, slender ; hind tibiae with four long 
spurs. Fore wings narrow, acute; exterior border slightly convex, 
very oblique. 
