DICHONIA. — PLEROMA. 295 



the veins slightly streaked with black ; a black streak below base 

 of cell defined by whitish above ; antemedial line defined by whitish 

 on inner side, strongly angled outwards below costa and above and 

 below vein 1 ; orbicular and reuiform brownish grey defined by 

 blao]\, their centres tinged with fuscous, the former elongate ellip- 

 tical, conjoined to an elliptical mark below the cell, often connected 

 with the rcniform, which is more or less angled inwards on median 

 nervure ; postmedial line bent outward below costa, then minutely 

 dentate, oblique below vein 4 ; sabterminal line only defined by 



Fig, 88. — Dickonia areola, (^ . \. 



slight black streaks before it above vein 6 and in submedian inter- 

 space, and by the area beyond it being brown with black streaks in 

 the interspaces, dentate to termen at veins 7, 6, 4, 3. Hind wing 

 whitish sufiused with brown, the inner area paler, the veins and a 

 fine terminal line darker ; the underside white, the costal and 

 terminal areas irrorated with brown, a black discoidal spot and 

 sinuous postmedial line with short streaks on the veins. 



Ab. 1. Much greyer. — Hyeres, Andalusia. 



Hab. Britain (Barrett), Leech Coll. ; Peance, Sand and Leech 

 Colls., Hyeres (Z^r6M/'_!/) ; Denmark; Germany, Zeller, Frey, and 

 Leech Colls. ; Austria ; Hungary ; Savitzerland; Spain, Andalusia, 

 Leech Coll., Catalonia ; Portugal ; North & Centr. Italy ; Sicily ; 

 ? Russia ; Asia Minor, Bithynia, ? Pontus ; Syria. Exjj. 32-42 

 millim. 



Larva. Meyr. Brit. Lep. p. 52 ; Barrett, Lep. Brit. vi. p. 43, pi. 236. 

 f. 2. 



Pale greyish ochreous ; dorsal line ])aler, double ; darker brown 

 dorsal blotches on somites 7, 8 ; 11 with small prominence. Pood- 

 plant, Lonicera. 6-8. 



Genus PLEROMA. 

 Plcroma, Smith, Trans. Am. Ent. Soc. xviii. p. 113 (1891) ohliquata. 



Proboscis fully developed ; palpi upturned, fringed with very long hair in 

 front ; frons rounded ; eyes overhung by long cilia ; antennae of male minutely 

 ciliated ; head and thorax clothed with hair and hair-like scales, tufts of long 

 hair above base of antennae, the tegulai forming a dorsal ridge ; pro- and meta- 

 thorax without crests ; tibiai and 1st joint of fore tarsi fringed with long hair ; 

 abdomen with dorsal crests on basal segments and lateral fringes of hair. 

 Fore wing with the apex somewhat produced and the termen obliquely curved ; 

 veins 3 and 5 from close to angle of cell ; G from upper angle ; 9 from 10 anas- 

 tomosing with 8 to form tlie areole ; 11 from cell. Hind wing with veins 3, 

 4 from angle of cell ; 5 obsolescent from middle of discocellulars ; 6, 7 shortly 

 stalked ; 8 anastomosing with the cell near base only. 



