1884.] LEPIDOPTERA FROM ADEN. 487 



19 a. CaTOPSILIA ALEURONA. 



2 Catopsilia aleurona, Butler, Aim. & Mag. Nat. Hist. ser. 4, 

 vol. xviii. p. 489 (1876). 



c? , Aden, 4th and 23rd February and 1 0th March ; $ , 15th April ; 

 S , Shaik Othman, 9th March ; $ , Lahej, 6th April, 1884. 



The males barely show a trace of marginal spotting on the upper 

 surface, and are slightly paler on the under surface than in C.florella ; 

 at the same time there is so much similarity between them that, 

 unless taken in copula in Abyssinia, it would be impossible to assert 

 that no taint of C.jlorella had modified the normal characteristics 

 of the race ^ 



19 b. Catopsilia hybl^a. 



$ Ca//?W?"yo5 ^?/6?(»fl, Boisduval, Sp. Gen. Lep. p. 612, n. 11 

 (1836). 



6 , 6th January, 23rd February, 8th March ; ?, 12th March ; 

 (S, 21st March. 



Nine males and three females received ; both sexes are smaller 

 than in C. aleurona, of a paler greenish-sulphur tint below, with 

 the markings, excepting the small ocellated spots, very ill-defined. 



1 9 c. Catopsilia pyrene. 



S ?, Colias pyrene, Swainson, Zool. 111. lstser.pl. 51 (1820-1). 



cJ, Aden, 21st and 27th March; $, 12th March; $, Lahej, 

 3rd April; S 2 {in coitu), 4th and 6th April; J, 10th April; 

 Shaik Othman, 20th April. 



20. TeRACOLUS CALAIS. 



Papilio Calais, Cramer, Pap. Exot. i. pi. 53. figs. C, D (1779). 

 Aden, 5th, I4th, 22nd, and 28th January; 10th April, i8S4 ; 

 10th and 14th October, 1883. 



21. Teracolus dynamene. 



Pontia dynamene, Klug, Symb. Phys. pi. 6. figs. 15, 16 (1829). 



S 2 in coitu, Aden, 15th February, 1884; d", 2yth August, 

 1883. 



The female taken in coitu is not distinguishable from that sex of 

 T. Calais, to which species it is, I should say, undoubtedly to be 

 referred ; the two species are perfectly distinct and readily separable, 

 so that it is extremely unlikely that any fertile eggs would have 

 been produced, or, at any rate, would ha\e yielded healthy larvae; 

 if, however, hybrids were reared, they ought to resemble T. carnijer 

 more than anything else. 



1 I must here remind Lepidopterists that whenever I speak of a species of 

 Butterfly or Moth, I mean exactly what is understood in some of the other 

 Orders by a local race ; all " species " of Lepidoptera being, in my opinion, local 

 races. 



