1896.] TllOM ]S T YASA-LAND. ] 25 



with sulphur-yellow internervular longitudinal lines ; inner edge 

 of border acutely zigzag: secondaries sulphur-yellow, with mar- 

 ginal rounded black spots : body normal, blue-blackish with yellow 

 venter. Primaries below pearl-white, showing the upper surface 

 pattern through the wing, apical border slightly washed with 

 sulphur-yellow ; a marginal series of black points : secondaries as 

 above, excepting that the base of the costa is chrome-yellow : 

 pectus whitish, with yellowish hairs. Expanse of wings 59 inillim. 

 <S 6 , $ , Nyankowa Mt., 6500 feet alt., April 9th ; 33, 

 Kantorougondo Mt., 5000 feet alt., Nyika, April 14th and 15th, 

 1895. 



" Chrome-yellow underwing White. A high flier, perching on 

 trees high up, but of weak flight " (11. 0.). 



72. COLIAS EDUSA, var. ELECTRA. 



Papilio electra, Linnaeus, Syst. Nat. i. 2, p. 764 (1767). 

 rf , Nyaukowa Mt., 5425 feet alt., April 8th ; <$ $ , 5575 feet, 

 April 30th ; rf , Kantorongondo Mt., 5900 feet, April loth ; d $ , 

 Cheni-Cheni Mt., 4500 feet alt., April 18th, 1895. 



" Ova oblong and yellow " (R. (?.). 



The white female is only the ordinary C. helice form. 



73. TERIAS CHALCOHLETA. 



Terias cludcomiceta, Butler, Ann. & Mag. Nat. Hist. ser. 5, 

 vol. iii. p. 190(1879). 



$ , Foot of Jakwa Mt., Henga-Nkarnanga, Jan. 29th, 1895. 



" Black-tipped light-chrome Yellow ; ova oblong and sharp- 

 pointed, not spherical " (JR. C.). 



This is probably a seasonal form of T. senegalensis. 



74. TERIAS DESJABDINSII (seasonal form T. reyularis). 



Terias reqularis, Butler, Ann. & Mag. Nat. Hist. ser. 4, vol. xviii. 

 p. 486 (1876). 



$ , Henga, W. of Lake Nyasa, Jan. 24th, 1895. 



44 Black-bordered Yellow " (R. C.}. 



An interesting example of the female, showing the dotted 

 margin to the secondaries characteristic of typical T. desjardinsii. 



75. TERACOLUS OPALESCENS. 



$ . Teracolus opalescens, Butler, Ent. Month. Mag. xxiii. p. 30 

 (1886). 



The male of this form has the black more largely developed than 

 in any of the other members of the T. eris group, excepting perhaps 

 T. abyssinicus (the male of which is unknown to me) : the pattern 

 of the primaries is almost the same as in T. eris, but the apex is 

 more purple in tint with the spots upon it golden ochreous, the 

 wings are moreover decidedly broader; the secondaries show a 

 marginal series of well-defined black spots ; the colouring below 

 is milky white ; the veins of the primaries tipped with black, the 



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