410 butteeflies of lake uemi. 



18. Chetsopha^jus thetts. 



Lyc(sna tlietis, Klu?, Symb. Phys. pi. 40. figs. 17, 18 (1834). 

 S $ , Seir, Aug. 16. 



19. Chetsophatstus theesamok, var. omphale. 

 Lyccena omphale, Klug, Symb. Pbys. pi. 40. figs. 12-14 (1834). 



5 , Seir, Aug. 16. 



It seems hardly likely that this tailed form can be a mere 

 variety of G. tliersamon, but Dr. Staudinger regards it in that 

 light. 



Papilionidje. 



PlEEINiE. 



20. Colias edtjsa. 



Papilio edusa, Fabricius, Mant. Ins. ii. p. 23 (1787). 



6 6 , Urmi {JDaltry coll.) ; J $ , Seir, Aug. 13-19, 1898. 

 Although the names hyale, eleetra, and croceus all take priority 



over edusa, the later name is so widely recognized that the use of 

 any of them without the general consent of Lepidopterists is 

 likely to lead to misapprehension*. If the name hyale be 

 rejected on account of its long application to a different species 

 in the genus, I do not see how electra applied to a common 

 African sport of the species can be ignored with any fairness or 

 regard to the law of priority. That G. electra is not a species 

 distinct from the European insect is certain, inasmuch as typical 

 forms of both insects with numerous intergrades reach us from 

 the same localities. 



21. StnchloS daplidice. 



Papilio daplidice, LinnaBUS, Syst. Nat. 1, ii. p. 760 (1767). 

 S , Seir, Aug. 13-16, 1898. 



22. GrANORIS EAPiE, Var. EEGATfE. 



Papilio ergane, Hiibner, Eur. Schmett. i. figs. 904-7 (1827). 

 Seir, Aug. 13-16, 1898. 



Papilionin^. 



23. Thais Ceeisti. 



Hhais cerisyi, Godart, Mem. Soc. Linn. Paris, ii. pi. 2 (1822). 

 Urmi {Daltry coll.). 



* Another objection to the use of the name edusa for a Colias is that, in his 

 'Genera Insectorum,' Fabricius used it for Synchloe daplidice. 



