MYLOTHRTS. By Dr. C. Aurivillius. 
85 
apical band on the upperside of the lorewing, which is somewhat broader and continuous to vein 4. Island 
of Kome in Lake Victoria Nyanza. 
M. phileris Bdv. (lib). Wings on both sides pure white with a yellow spot on the forewing, which pliilcris. 
is small above and medium-sized beneath; the marginal spots are all free and rounded except those on veins 
5—7 or 6 and 7 of the forewing above; those on veins 2—4 of the hindwing are larger than the others. 
Madagascar, ab. thinaga Suff. is distinguished by having the hindwing tinged with yellowish along the distal thinaga. 
margin, especially intensive before the anal angle, and beneath not white but light yellow. Madagascar. 
M. smithi Mab. (12 b) is the largest species and is distinguished by 1—2 black spots at the costal smithi. 
margin of the forewing on veins 9 and 10; all the marginal spots are free and rounded; both wings are white 
and the forewing has a large gold-yellow (c?) or ochre-yellow (?) hindmarginal spot, which covers cellules 
la, lb, the base of cellule 2 and the posterior half of the cell longitudinally. Madagascar. 
The following four species differ from the preceding in that the orange-yellow or red basal patch of the forewing 
is not obliquely cut off distally and is continued more or less far along the costal margin. 
M. bernice Hew. (12 c) has the wings white in the cd, black grey in the ?; the black apical band of bernice- 
the forewing is broad in the cd and continuous to vein 3 or 4, in the ? it gradually shades off into the ground¬ 
colour; hindwing with very large marginal spots, beneath light yellowish. Congo region. 
M. rubricosta Mab. (11 c) is very similar to the preceding species, but smaller and with small, puncti- rubricosta. 
form marginal spots, which are all free: costal margin of the forewing on both sides narrowly black to the 
apex; ground-colour of both wings in the cd white, in the ? dirty grey, above behind the middle of the hindwing 
more or less whitish. East Africa from Mossambique to Uganda and in the interior parts of the Congo region. 
M. sulphureotincta Strand. ’’Nearly allied to rubricosta, but both wings above and beneath uniformly su ^^° 
scaled with sulphur-yellowish or light ochre-yellowish; the black marginal dots larger, those of the forewing 
with diffuse proximal prolongations, especially the anterior ones; the black costal-marginal band a little 
broader. 4, Ruanda. 
M. wintoniana E. Sharpe is larger and more powerfully built than rubricosta; the ground-colour of the wintoniana. 
wings is white, but the hindwing is above slightly, beneath strongly tinged with yellow; marginal spots 5 — 9 
on the upperside of the forewing are united into a black apical band at least 5 mm. in breadth; the marginal 
spots of the hindwing above and beneath very large, rounded, partly contiguous; the red basal spot of the 
forewing above scarcely indicated, but beneath long and narrow, almost reaching the apex of the cell. 
Kavirondo and Uganda. 
M. ngaziya Oberth. (11a, b) differs from all the preceding in having both wings above dusted with ngaziya 
black at the bas'e for a breadth of at least 5 mm.; both wings above with white, slightly greenish ground¬ 
colour or the hindwing in the ? tinged with yellowish; costal margin of the forewing rather broadly black; 
the marginal band on the upperside of the forewing is continuous in the cf to vein 4, in the ? to vein 2; 
the marginal spots of the hindwing medium-sized (cf) or very large (?); marginal spots on the under surface 
all free; forewing beneath with large orange-yellow basal spot; hindwing beneath yellowish. Comoro Islands. 
The following forms are distinguished from the preceding ones by the ground-colour of the forewing being white 
and that of the hindwing sulphur- or rarely ochre-yellow. The forewing beneath more or less yellow at the apex. 
M. trimenia Btlr. (11 c, d). The apical band of the forewing above is only continuous to vein 5 and trimenia. 
only 2—3 mm. broad at the apex; all the other marginal spots small and free; costal margin of the forewing 
above narrowly black, not widened at the base; apex of the forewing beneath yellowish. South Africa to Natal. 
M. sagala. The black apical band of the forewing above is at least 5 mm. in breadth and at the 
distal margin continuous to the hinder angle or represented there by large oval or triangular marginal spots, 
at the costal margin it is continued as a broad longitudinal band to the base, is more or less widened at 
the base and covers also the base of the hindwing. Many nearly allied forms of this species have been de¬ 
scribed. The descriptions are often only made from single specimens and hence it is not possible to decide 
whether we are dealing with genuine local races or only with individual aberrations. The forms appear to 
me to intergrade completely without any sharp dividing line; in any case it is not possible from the des¬ 
criptions and figures to deduce sharp distinctions. Anyone who was able to investigate the forms closely in 
nature would certainly make interesting discoveries. The species seems to be peculiar to the mountainous 
districts of Africa. — sagala Smith. ”Anterior-wings white, irregularly irrorated with brown-black, especially sagala. 
on the costa, in the cell and towards the base, where the irroration is so close that the wings are nearly 
brown-black. Posterior-wings yellow; the base and an irreguarly defined space near the apex between the 
costal nervure and the first subcostal nervule, thickly irrorated with brown-black; minute black spots on the 
margin at the end of the nervules. Underside: Anterior-wings white; costa grey, apex faintly tinged with 
yellow. Posterior-wings yellow with small black spots on the margin at the end of the nervules. 1 " Interior 
