LEPIDOPTERA HETEROCERA. 379 



costalibns obliquis argentcis, spado marginali cinereo alomis 

 nigris lituram angulation argmteani punctaqne tria nigra in- 

 cludente ; posticce strigis nonnullis costalibus subapicalibus 

 cinereis. 



Female. Very pale fawn-colour. Abdomen, under side and 

 hind wings whitish. Palpi pdose, very short; third joint extremely 

 minute. Fore wings acute, hardly falcate, wilh several slightly sil- 

 very longitudinal lines, and with some brighter silvery oblique cos- 

 tal streaks ; marginal space cinereous, very minutely speckled with 

 black, including an angular silvery mark, which is accompanied by 

 three black points ; costa very slightly convex ; exterior border 

 rather oblique. Hind wings with a few transverse cinereous streaks 

 on the apical part of the costa. Length of the body 4 lines ; of the 

 wings 9 lines. 



a, b. North America. From Mr. Carter's collection. 



78. P^EDISCA ALBICEPSANA. 



Cervina ; caput, thorax anticus, pectus et abdomen subtus alba ; 

 alee anticce angustce, acutce, vittis tribus albis, \a costali ab- 

 breviata, 2a discali extus furcata et inlerrupta, 3a postica 

 tenui, strigis costalibus exterioribus obliquis argent eo-albis, 

 strigulis duabus submarginalibus atris ; posticce cinereo -fuse a?, 

 fimbria albida. 



Fawn-colour. Head, palpi, fore part of the the thorax and 

 under side of the body white. Palpi porrect, pilose, shorter than 

 the breadth of the head ; third joint extremely short. Wings elou- 

 gate, rather narrow. Fore wings acute, with three white stripes ; 

 first stripe costal, extending from the base to half the length, where 

 it is succeeded by oblique silvery white streaks ; second stripe dis- 

 cal, forked and interrupted towards the exterior border, where it is 

 accompanied by two deep black streaklets ; third line slender, near 

 the interior border; costa straight; exterior border slightly convex, 

 rather oblique. Hind wings cinereous- brown ; fringe whitish, 

 shining. Length of the body 3 liues ; of the wings 8 lines. 



a, b. North America. From Mr. Carter's collection. 



79. PjEdisca procellariana. 



Cinereo-nigra ; palpi pilosi, capitis latitudine vix breviores, arti- 

 culo So conico; tarsorutn articuli apice albidi ; ala? antica 

 fimbria obscure cinerea. 



