ACHAEA. By M. Gaede. 
237 
finely whitish, with faint reddish brown spots outside, excurved below the costal margin and in the inhldle, 
an oblique brown streak from the apex. Hindwing dark red-hrown with a white bent median line, darker behind 
it. Apex as far as vein 5 white. $ 60 mm. Central Africa. 
A. cymatias E. Pront may be only a form of hypopolia. Interior line of forewing more vertical, exterior cyniatias. 
line more bent inward, with a violet reflection in the median area. Hindwing with a white apical spot. 70 
to 75 mm. Cameroon. 
A. determinata E. Prout. Body and forewing pale reddish brown. Interior line corresponding to faber. delrrminala. 
Two black dots at the cross-vein. Median line undulate, feeble, parallel, and near the exterior line which is 
similar in indeterminata, but not parallel with the median line, both excurved behind the cell, incurved in the 
submedian fold, then vertical to the inner margin. Submarginal line extinct, indicated by the marginal area 
being light inside, darker reddish brown outside. Hindwing brownish white with a dark median and exterior 
line, somewhat darker also at the margin. 42 mm. Central Africa. 
The two following species are very much alike. The slight differences in the shape of the line are rather in¬ 
conspicuous owing to its indistinctness, horis is smaller, the grey margin on the forewing is more fadedly defined. 
finita is larger, the margin distinctly defined. 
A. boris Geyer (= oblita Wkr., senior Wkr., sinistra Mab., debilis Holl.) (28 b). Body and wings dark horifi. 
greyish brown. Interior line dark, undulate, straight, somewhat oblique. Median line dark, rather straight and 
oblique as far as vein 4 close behind the nebulous reniform macvda, bending rather sharply round as far as the 
submedian fold, then vertical. Exterior line parallel, undulate, bent down at vein 4, slightly bent inward in 
the submedian fold. Submarginal line as a dark shadow, margin faded grey. Hindwing with a bent indistinct 
light median line. Marginal area darker. — In mundissima Wkr. the forewing is lighter, reddish brown. 42 to mundissima 
48 mm. West, South and East Africa, Madagascar. — The form renata Strd. is regarded as a species by Prol't. renafn. 
Reniform macula filled with black. The median and exterior lines are more excurved at about vein 6. Moreover, 
the exterior line is more notched, though less bent than in boris. The median line touches the reniform macula 
at the ends and is excurved between, then more vertically continued. Niger District, Sao Thome. 
A. finita Gn. (= limbata Fldr.) (28 b). Interior line as in boris. Reniform macula replaced by two black finita. 
dots. Median line rounded at vein 4, the bend in the submedian fold is also softer, sometimes there is besides 
a feebler branch to be noticed behind it. Exterior line parallel to it, both uniformly dentate. Marginal area 
grey, straight and distinctly defined, excurved to the apex. Hindwing with a quite indistinct, rather straight 
median band, mostly a white spot at the apex. — In infinita Gw. the margin of the forewing is as brown as the infiniia. 
ground-colour, regularidia Strd. (27 a) is very similar, but I take it to be different. — In another form from 
East Africa the median and exterior lines are sharply introangular in the submedian fold. Hindwdng with a 
fine white submarginal line extending from the feeble apical spot to the anal angle. 58—62 mm. West, South 
and East Africa, Madagascar. 
A. extemesignata Saalm. (28 b). Thorax greyish brown. Forewing reddish brown, with a violet reflection, e.vternesig- 
especially in the median area. Interior line dark, extra-angular below the costal margin, then somewhat out- 
ward, uniformly concave in the middle. A black dot at the lower cell-angle. Median line fine, notched, outward 
as far as vein 4, slightly angled, vertical to the inner margin. Exterior line dentate, bent behind the cell and 
straight to the inner margin. Submarginal line fine, straight. Before it at the costal margin a quadrangular black 
spot with an outward dent. Hindwing bluish grey, darker towards the margin. White marginal spots at the 
apex and behind the cell. (J 45 mm. Madagascar. 
A. albicilia Wkr. (= ebenaui Saalm.) (28 c). Red-brown with a very indistinct marking. Fringe of albidlia. 
forewing white, except at the apex and anal angle, by which it is easily recognized. Interior line oblique, un¬ 
dulate, sometimes edged with white and then more distinct. Reniform macula indicated by 2 or 3 black dots. 
Median line more curved behind the cell than the exterior line, then obliquely inw^ard, hardly recognizable. Ex¬ 
terior line strongly dentate, with white points at the veins. Margin darker, submarginal line not discernible. 
Hindwing greyish brown, a bluish wliite median line extending to below the cell. 48—52 mm. West Africa, 
Nyassa District, Madagascar. 
A. usitata E. Prout resembles albicilia. Ground-colour cinnamon brown, fringe not so white. Interior 'usitaia. 
line more oblique. A dark shadow between the median and exterior lines. Exterior line not so strongly dentate, 
without white points at the veins, otherwise not different. The light median line of the hindwing extends to 
the anal angle. $ 55 mm. Sao Thome. 
A. diplographa Hmps. (28 c). Reddish brown and somewhat greyish brown. Interior line double, dark, diplographa. 
flatly undulated. Reniform macula small. Median and exterior lines indistinctly doid^le, dentate, excurved 
behind the cell, then straightly inward, parallel. Submarginal line faded. Marginal area darker except at the 
costal margin beginning from the mediain line. Hindwing greyish brown, a grey median line traceable almost 
as far as the anal angle, marginal area darker. 48 mm. Comoro. 
A. sordida Wkr. (= pretoriae Dist.) (28 c). In spite of the indistinct marking mostly well recognizable sordida. 
by the exterior line being only feebly undulated and extending vertically from vein 5. Hindwing with a light 
submarginal line from a small spot at the apex to the anal angle. Forewing from greyish brown to reddish brown. 
