18'.'5. PROCEEDINGS OF THE NATIONAL MUSEUM. 243 



alter a vain attempt to tind any figure or description api)licable to the 

 five specimens before me, I have resolved to gi\e tliem a name which, 

 at least to the student of Asiatic lepidoptera, will prove suggestive and 

 descriptive. 



Genus MYLOTHRIS, Hubner. 

 MYLOTHRIS LASTI, H. Grose Smith. 



Mi/lothri8 lasti, H. G. SMiTif. Auu. ami Mag. Nat. Hist., February, 1889, p. 124. 



The collection contains two female specimens of this most beautiful 

 species. 



Genus PIERIS, Schrank. 



PIERIS THYSA, Hopffer. 



Pieris ihysa, Hopffer, Mouatsber. K. Akad. Wiss. Berl., 1855, p. 639, No. 1; 

 Peter's Reise ii. Mossamb., Ins., p. 349, pi. xxi, figs. 7, 8, male; 9, 10 

 female (1862). 



One male specimen. 



PIERIS MESENTINA (Cramer). 

 PapiUo mesottina, Cramer, Pap. Exot., Ill, pi. cclxx, figs. A, B (1782). 

 Five males, one dwarfed female. 



PIERIS SEVERINA (Cramer). 



Papilio severina, Cramer, Pap. Exot., IV, pi. cccxxxviii, figs. G, H (1782). 

 Two females. 



PIERIS JOHNSTONII (Crowley). 



Sijiichloe Johnstonii, Crowley, Traus. Ent. Soc. Lond., 1887, p. 35, pi. iii, figs. 1-3. 

 The collection contains three specimens of this species from Kiliman- 

 jaro. 



Genus TERACOLUS, Swainson. 



TERACOLUS HILDEBRANDTII (?) (Staudinger). 



Callosune hUdehrandfii, Staudixger, Exot. Sclimett., j). 44, pi. 23. 



There is a solitary female of some species of this genus, which I refer 

 with a great deal of doubt to the male described and figured as Hilde- 

 braiidtii by Staudinger in his "Exotische Schmetterlinge." 



TERACOLUS CALAIS (Cramer). 



P(i2>Uio Calais, Cramer, Pap. Exot., I, pi. Liii, figs. C, D (1779). 

 There are two males of this species in the collection. 



TERACOLUS CASTALIS (Staudinger). 



Idmais casfalis, Staudixgek. Exot. Sclimett., p. 43, pi. 23. 

 There are two males of this species in the collection which present a 

 wonderful likeness to the genus Colias, and might be easily mistaken 

 for albino females of ('. elcefra. 



