Linnean Butterflies. 149 



234. P. vanUIce (Agkaulis). Typ. refs. *Mer. Ins. 

 Sur. t. 25 ; *Sloane, Jam. ii. t. 239, f. 23, 24 ; later ref. 

 CI. t. 40, f. 2. 



*Plebeji rurales. 



235. P. Cupido (Helicopis) . Refs. *Pet. Gaz. t. 10, 

 f. 9 ; *Mer. Ins. Sur. t. 10, f. 1 ; *Roes. iv. t. 3, f. 7. 



236. P. Polybe (Thecla), JoL. & Lin. 



237. P. TJiero (Zeritis) . 



238. P. hetulce (Thecla) . 



239. P. jpruni (Thecla). Typ. ref. *Eoes. v. 2, 

 t. 7. 



240. P. quercus (Thecla) . 



241. P. Marsyas (Thecla). Typ. ref. CI. t. 41, f. 1; 

 *Edw. t. 81 ; later ref. *Eoes. i. t. 5. f. 1, 2. 



242. P. Echio7i (Thecla, ?). S. N. 1767, p. 788. Eef. 

 *Roes. i. t. 7, f. 3, 4. Mr. Butler (Cat. Fabr. p. 188) 

 gives a different reference, but it is correctly quoted by 

 Linnaeus, according to our copy of Eoesel. 



243. P. Telainon. Undetermined. 



244. P. Bceticus (Polyommatus) . 



245. P. Thyra (Zeritis). 



246. P. Thy she (Zeritis) . 



247. P. Thamyras. Undetermined. 



248. P. Arion (Polyommatus). Typ. ref. *Roes. iii. 

 t. 45, f. 3, 4; later refs. Sulz. t. 14, f. 87; Poda, t. 2, 

 f. 4. RoeseFs figure seems to represent P. Diomedes ; 

 but this is not a Swedish insect, nor does the description 

 (F. S. p. 833) appear to point to it. Some Polyommati 

 are figured on plate 18 of Roemer's edition of Sulzer, 

 but Avion is not among them. 



249. P. Zeuxo (Zeritis) . 



250. P. Argus and P. Idas (Polyommatus) . F. S. 

 p. 283, united in S. N. 1767, p. 783. Wallengren is 

 probably correct (Rhop. Scand. p. 206) in referring this 

 species to ^gon, for the other critical species is a great 

 rarity in Sweden. Linnasus says in F. S. that Argus is 

 " caudatis," evidently a misprint, as it is corrected in 

 later works. 



251. P. Philiasus. I suspect this insect may prove 

 to be identical with Polyommatus Aviyntas, Fabr., but I 

 am not quite sure, having only short descriptions to 

 compare. 



