264. 



THECLA PRUNI. 



The black Hair-streak. 



Order Lepidoptera. Fam. Papilionidae Za/., Leach. 

 Type of the Genus Papilio Betulae Linn. 



Thecla Fab., Leach., Sam., Step. — Polyomrnatus Laf. — Papilio 



Linn., Fab., Haw., Hub., Och. 



Antenna inserted close to the eyes on the crown of the head, 



rather short, clavate, gradually thickening to the apex, which is 



oval or conical (1). 



MaxillcB shorter than the antennae, convoluted, furnished with 



tentacula at the apex (3). 



Labial Palpi porrected obliquely, clothed with short scales, 



slightly hairy beneath (4)j triarticulate, basal joint short slightly 



curved, 2nd long, a little attenuated, 3rd not longer than the 



1st, slender and oval (4 a). 

 Head small (7* the profile; 7 the underside) . Eyes oval pubescent. 

 Thorax ovate. Abdomen rather short. Wings ; superior subtrigo- 

 nate, inferior producing one or 2 caudal appendages near the anal 

 angle. Legs alike in both sexes, robust and rather short. Tibiae 

 tvith the spurs very short. Tarsi 5-jointed, basal joint the longest 

 and dilated, 3 following very short transverse, 5 th short. Claws 

 a7id Pulvilli minute (8, afore leg). 

 Larvge onisciform, short, thick, attenuated at both ends, pilose, with 6 



pectoral, 8 abdominal, and 2 anal feet. 

 Pupae short, attached by the tail which is pointed, and girted round the 

 middle, the head which is rounded being uppermost. 



Pruni Linn. Faun. Suec. p. 283. n. 1071. 



Brownish black. Antennae annulated with white, the tips 

 ochreous, margins of the eyes and portions of the palpi silvery 

 white. Inside of legs silvery white, tarsi annulated with the 

 same, the thighs clothed with long bluish hairs. Superior wings 

 with an oblong spot near the costa : inferior with 3 or more lu- 

 nular scarlet spots near the margin, with a small bluish one at 

 the anal angle. Beneath brown with an ochreous tinge ; supe- 

 rior wings with a bluish silvery transverse line towards the mar- 

 gin, nearer to which are several undefined scarlet spots, each of 

 which bears a black spot with a silvery edge ; inferior wings 

 with a broken silvery line nearly across the middle, forming an 

 obtuse W near the abdomen ; fimbria scarlet, with a black semi- 

 circular spot between each nervure, at the base of the cilia, ter- 

 minated by a silvery line, the anal one having a bluish silverv 

 spot upon it, and at the inner margin of the fimbria are 6 or 7 

 black spots edged on the upper side with silver. 

 hi the Author's and oilier Cabinets. 



