128 



H. STEMPFFER 



List of Species of Iolaus (Trichiolaus) 



*Iolaus (Trichiolaus) argentarius Butler, 1879. Fig. Oberthur, 1916 (as 

 leucoceros) . 

 leucoceros (Oberthur), 1916. 

 Iolaus (Trichiolaus) leucoceros (Oberthur), see argentarius. 

 *Iolaus (Trichiolaus) tnermeros (Mabille), 1878. Fig. Mabille, 1887. 



IOLAUS (TANUETHEIRA) H. H. Druce 



Tanuetheira H. H. Druce, 1891, Ann. Mag. not. Hist. (6) 8 : 148. Type-species : Papilio 



Union Fabricius, by original designation. 

 Iolaus Hiibner (partim) ; Aurivillius, 1898 : 322 ; 1923 : 391. 



Eyes smooth ; palpi extending well beyond the frons, second segment long, laterally com- 

 pressed, clothed below with white adpressed scales and above with black scales, third segment 

 rather short and similarly clothed with white and black scales ; antennae about half as long as 

 the costa, with a gradually swollen fusiform club which has a reddish apex ; thorax clothed 

 below with long white hairs ; all tarsi black and white-annulated, q* fore tarsus unsegmented. 



Wing shape. Fore wing inner margin with slight lobe near the base ; hind wing outer 

 margin slightly angular at the end of vein 4, a short triangular tail at the end of vein 3, a long 

 delicate tail at the end of vein 2, a broad tail about 2 mm. wide and 18-20 mm. long at the 

 end of vein ib, a small lobe at the anal angle. Male secondary sexual characters : on the 

 underside of the fore wing, in the middle of the inner margin, there is a tuft of long black hairs ; 

 on the upperside of the hind wing there is a scaly patch at the base of vein 7, surrounded by a 

 wide, glossy, satin-like area which covers a large part of the cell and costal area. 



Wing venation (Text-fig. 293). Fore wing with 11 veins in both sexes. H. H. Druce was in 

 error, as Aurivillius noted, in attributing 12 veins to the <$. 



Male genitalia (Text-fig. 114). Uncus composed of two lobes with rounded apices separated 

 by the shallow depression of the margin of the tegumen ; subunci curved, fairly long with 

 thickened base ; tegumen large, subrectangular, in its normal position hood-shaped ; vinculum 

 rather broad with a very indistinct saccus ; lower fultura shield-shaped, fused to the base of 

 the valves, which are oblong with the apex slightly recurved and a serrated lower edge ; penis 



Fig. 113. Iolaus (Trichiolaus) mermeros (Mabille), <J genitalia. 



