APPENDIX. j.,.{ 



Some specimens of C.formosa received from Pcnik are mucii paler in Im,-, aiid sccin 

 to counect it with the form or species I described as C. mrli {aiitea, p. Ml). Mr. de 

 Niceville has commmiicated his opiniou to me tliat he considers C. codes, C. formosa and 

 C. earli to be all phases of one species, and certainly there is much to impress this view, which 

 if accepted must also include and synonymicallv sink several other described " species." 

 Actual breeding- must, however, decide this (jUi'stion, and at present I treat them here as 

 distinct. Certainly C. coclrs is much further removed from C. fonnosa than the last named 

 is from C. carli.^ 



5. Cyrestis periander. (Tab. XLL, fig. 10.) 



P<,inli<i Veriaml,;-, Fabricius, Maut. Ins. ii. p. 9, ii. 74 (1787) ; Eut. Syst. iii. p. 05, n. 2()t (1793)- Don Ins 



Iiid. t. 37, f. 1 11800). 

 Xpnphdlis Periander, Godt. Euc. Metb. ix. p. 362, n. 42 (1823). 

 Paphia Perimuler, Horsf. Cat. Lep. E. I. C. t. 5, f. 3, 3rt (1829). 

 Cyrestis Periander, Horsf. & Moore, Cat. Lep. Mus. E. I. C. vol. i. p. Ul, n. 299 (1857) ; Butl. Cat. Fabr Lep 



p. 82, u. 2 (1869). 

 t>-(s?/.s Theinire, Honratb, Berl. Eutomol. Zeitscbr. Ikl. xxviii. Heft 1, p. 898, t. x. f. 5 (1884). 



Male and Female. AVings above creamy white ; anterior wings with the following pale ochraceous 

 fasciae :— two near base, third not extending beneath cell, fourth crossing wing, fifth not extending benoatb 

 cell, and the sixth again crossing wing, apex and outer margin dark fuscous and containing an inner row 

 of blackish spots and a submarginal blackish line margined on each side with greyish-white, fringe obscure 

 greyish ; posterior wings with the following pale ochraceous fascia,— two near base, neither of which reach 

 the abdominal margin, the third oblique, fourth and fifth crossing wing and fused towards anal angle, 

 a large pale ochraceous submarginal patch extending from about the discoidal nervule to the anal angle, 

 outer margin dark fuscous with an inner series of greyish spots with blackish centres and margins situate 

 on a blackish waved line outwardly margined with greyish, a submarginal waved blackish line margined on 

 each side with greyish and the fringe obscure greyish. Wings beneath as above, but with the ochraceous 

 fasciae narrower, paler, and somewhat less continuous and more broken. Body above pale fuscous, beneath 

 with legs more or less coneolorous with wings. 



Exp. wings, S and 2 , 88 to 48 milliin. 



Hab. — Continental India ; Assam (Brit. Mus.).— Malay Peninsula; Penang (Biggs & Egerton— coll. 

 Dist.) ; Perak (Ktinstl. — coll. Honratb). — Java (HorsL & Moore). 



Genus CHERSONESIA {anlai, p. 142). 

 2. Chersonesia peraka. (Tab. XL., hg, 6). 



Chersonesia jjcraka. Distant, Ann. & Mag. Nat. Hist. ser. 5, vol. xiv. p. 199 (1884). 



Allied to C. mhria, Moore, but smaller, the ground-colour more ochraceous and less rufous ; markings 

 similar, but with the transverse fasciae broader, much darker, and placed closer together. The obsolete 

 caudate prolongations in C. rahria near the apices of the first and third median nervules are scarcely 

 visible in C peraka, and a structural peculiarity exists in the first subcostal nervule of the anterior wings, 

 which in the species I here describe impinges near its base on the costal nervure. 



Exp. wings, <7 , 28 millim. ; 2 , 34 millim. 



Hab. — Malay Peninsula; Perak (Kiinstl.— Calc. Mus.). 



■■■■ The funambulatory path of the specific discnmiuatur is nut euhghteueil, but rather darkened, by such unexpected 

 problems as these poor Cyrestids afford. lu fact, the whole canon of specifie differentiation frequently partakes of the nature 

 of the old scholastic jargon, and some future historian who may write on the classiticatory system pm'sued by many uaturaUsts 

 of these days might ahnost use the words of the venerable— or to some flipi>ant - Jortin D.D., who, writing of a.d. lOOO, 

 remarks : — " In tliis age, tlioiigh dark and ignorant, a subtle <xuestiou was started, relating to dialectics, concerning uiiifcraals, 

 as they were called, or the genera and sjiecies rerani ; whether they were realities and substances, or mere names. ■ ■ ■ ■ This 

 controversy was warmly agitated for many ages and caused furious contentions."— (' Remarks upon Ecclesiastical History.' i 



