PLATE CCXXXIX. 59 



defcription of Papilio Hyale feems to agree with the fiditious 

 P. Palceno of our colle^^^ions, and the fpecimen in the Linnzean 

 cabinet places it beyond conje6ture. 



Fabricius has not attended to the errors of former authors on this 

 fubjed ; even in his laft work, S)Ji. Ent. he adds to the fpecific de- 

 fcription of his P. Hyale, Mas inargine alarum nigro immacu- 

 lato, foemina maculate*, by this it is evident he alludes to the 

 clouded orange, for it is not fo in the Linnasan infedl ; the broad 

 bar of black being conftanlly fpotted in both fexes. We have alfo 

 obferved that the rare variety with white wings is only the female ; 

 that which is yellow is the male : the fame is obferved alfo of 

 Papilio Rhamni, or Brimftone Butterfly ; and as the males of all 

 infeds are more abundant than the females, and the males of P. Hyale 

 are rare, the variety, or fex with white wings muft be extremely fo. 

 Thefe have been taken in a clover field in the month of Auguft, in 

 company with the clouded orange. 



It may be proper to clofe this defcription with a few obfervations 

 on the true Papilio Palasno, as the fubjefl before us has hitherto 

 pafled under that name. Linnasus fays, alis integerrimis flavis apicc 

 nigris margineque fulvis : pofticis fubtus pun<Sto argenteo ; this does 

 not agree with, or at leaft exprefs the Infect generally called Palzeno, 

 and the fpecimen in the Linnsean cabinet proves it to be a different 

 fpecies ; the P. Palasno has no yellow fpots on the black margins of 

 the wings, and the fpot in the center of the anterior pair is fmall 

 and fhaped like a fhuttle ; its native place is unknown. A variety 

 of the pale clouded yellow is found in America, and by miftake is 

 fometimes placed in cabinets as a Britifh fpecies. 



* The wings in the males have a broad black bar on the exterior margin ; in the female the 

 b^rs are fpotted. 



H 4 FIG. 



