1896.] FEOM NYASA-LAND. 127 



T. regina does not come to hand from Central Africa. The collection 

 made by Emin Pasha contained half a dozen examples of T. anax, 

 but not one of T. regina ; Mr. Crawshay's first collection, from 

 Lake Mweru, contained one female T. anax aud his present col- 

 lection contains one male, again T. anax ; but perhaps this form 

 is the only one in Central Africa, and typical T. regina is only 

 produced, as a second form, as the species ranges southwards. 



78. TEKACOLFS JALONE. 



Euchloe jalone, Butler, Cist. Ent. i. p. 14 (1869). 

 Teracolus phegyas (part.), Butler, P. Z. S. 1893, p. 664. 

 3 , Henga, W. of Lake Nyasa, Jan. 25th, 1895. 

 " Purple-tipped black-veined White" (R. <?.). 

 This form seems so rare that it may well be mistaken for 

 T. plilegyas ; in all probability it is the Nyasa form of that species. 



79. TERACOLUS GAVISA. 



c? . Anthopsyche gavisa, Wallengren, Kongl. Svensk. Vet.-Akad. 

 Handl. 1857 ; Lep. Ehop. Caffr. p. 13. n. 6. 



$ . Anthopsyche omphale, Wallengren, loc. cit. p. 11. 



cJ $ . Teracolus subvenosus, Butler, Ann. & Mag. Nat. Hist, 

 ser. 5, vol. xii. p. 105 (1885). 



cf , Henga, Jan. 24th ; $ , Jan. 25th ; $ , foot of Jakwa Mt., 

 Henga-Nkamanga, Jan. 29th ; <5 $ in coitu, Henga, Jan. 30th, 

 1895. 



Mr. Trimen (South African Butterflies, iii. p. 135) says : 

 " Having examined the types of sitbvenosus, But)., from Victoria 

 Nyanza, I find the female in separable from that of T. gavisa, while 

 the male, though very near the corresponding sex of the species 

 named, differs in wanting the inner black edging of the apical 

 patch, and in the feeble development of the inner marginal blackish 

 bar of the fore wings and the costal one of the hind wings." 

 Although I do not admit that the type of T. subvenosus agrees 

 absolutely with the typical female of T. gavisa, inasmuch as the 

 oblique subapical bar on the front wings is much narrower in the 

 latter, I am compelled by the receipt of many transitional specimens 

 to agree with Mr. Trimen that my female is only a slight variety of 

 Wallengren's, and, moreover, that my male is only a better-marked 

 variety, though absolutely inseparable as a species. The series 

 received from Dr. Gregory, taken in conjunction with the five 

 examples in the present collection, renders the discrimination of 

 the two forms T. gavisa and T. subvenosus simply hopeless. 



Unless T. hero is another variety of T. gavisa (which I think 

 possible), I am of opinion that the female of T. sipylus would be 

 better placed under T. hero than under T. gavisa, the black veining 

 of the under surface being barely noticeable ; the whole of these 

 forms might then sink under T. achine, T. hyperides being included 

 as a starved form, though in some respects it more nearly resembles 

 T. helle=a, race of T. antevippe. 



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