lievision of the Genus Tcracolus, Swains. 495 



LVIII. — A Revision of the Sjiecies of Butterjiies lielonijiiKj to 

 the (ienus Ti'racohis, ,Sirains. By AUTUUU G. Butli:k, 

 Ph.D., F.L.S., F.Z.S., &c. 



[Concluded from p. 473.] 



67. Teracolus Ilildebrandti . 



Callosune Ilildebrandti, Staudinger, Exot. Schmott. p. -A^j, pi. xxiii. 

 (188G). 



From Nyasaland iiortluvard to Uganda and eastward to 

 Mombasa. 



Tliis species is certainly dimorphic in its wet and dry 

 phases, liaving the apical patch on the primaries either dull 

 ochreous or bright crimson ; it is very closely related to the 

 southern T. Anmv^ but is, generally speaking, a slightly larger 

 insect with a little less black about it, the female of tlie wet- 

 season form clearer and more cream-tinted on the under 

 surface of the secondaries. At the same time its dimorphic 

 character is its best one, the crimson-tipped forms (especially 

 the males) of the two butterflies being remarkably similar in 

 every respect. It is curious that just when Mr. Marshall was 

 stating that this species had " only been received from the 

 basin of the Sabaki River," we were receiving a male of the 

 dry-season form from Nyasa, completely proving the specific 

 identity of this species with tiie crimson-tipped representative 

 of T. Anna;, four examples of which from Nyasa stand in the 

 Ilewitson series, whilst the Godman and Salvin collection 

 contained seven now transferred to the Museum series. An 

 example of the dry-season form of this variety is recorded by 

 Mr. Marshall in a footnote as T. Annce ; yet he professes to 

 distinguish the two species partly by the black inner edging 

 to the apical patch — a very unreliable character, which varies 

 considerably in T. Annce itself. 



68. Teracolus Annce. 



Thesttas Annce, Wallengren, Kongl. Svensk. Veteusk.-Akad. Handl. 



1857 ; Lep. Rhop. Catfr. p. 06. 

 Anthocharis Danae, Hewitson (uec Fabr.), Geu. Diurn. Lep. pi. vii. 



tig. 3 (1847). 

 Teracolus cinerascens, Butler, Cist. Ent. i. p. 172 (1873). 

 Teracolus Wallen(jreni, Butler, P. Z. S. 1876, p. 157. 

 Callosune Wallengreiii, Westwood, in Oates's Matabeleland, p. 341, 



pi. E. figs. 3, 4 (1881). 

 Callosune confusa, Westwood, I. c. p. 348 (1889). 



Ranges from Natal to the Zambesi. 



