LETO; DALACA. By M. Gaede. 
555 
in the abdomen and ceil being longer, especially at its posterior edge, so that in the hindwing the absolute 
length of vein 3 is rather smaller in this much larger species than in nepalensis. As the legs of my specimen 
are very much damaged, there are no other but these slight differences to be noticed. Certainly the position 
in Lepid. Catal. Junk (in the genus Phassus) is wrong. 
3. Genus: 1 ^eto Hbn. 
* 
Separated from Hepialus by the feebly haired head and palpi, whereby the tiny palpi are well visible. 
Legs much less hairy. Wings beneath (especially forewing) with very long and dense hair. Type: venus Stoll. 
L. versus Stoll. (80 f). Thora^vdark reddish-brown. Forewing somewhat lighter. Behind the middle 
and at the distal margin one row each of silvery spots, before them as far as the base just as large ones, 
irregularly arranged, at the costal and inner margins smaller ones, all distinctly edged with black. Abdomen 
and hindwing brownish pink. 100—140 mm. South Africa. 
4. Genus: Oalaca Wkr. 
Palpi short or very short. Antennae of about y 3 the length of the forewing with double-rowed 
lamellae. Tibial plate half the length of the anterior tibia or shorter. In the forewing veins 7 and 8 somewhat 
separated or from the same place, only in ammon and rufescens on a short stalk. Type: nomaqua Wkr. 
All the species show on the forewing a light radial and exterior band which may be united or parted. 
D. exul H. Schdfj. (= libratus Wkr.). Thorax and forewing reddish-brown, abdomen and hindwing 
lighter. In the forewing at the base of the inner margin a white spot. The moderately curved radial band at 
the end with a sharp angle. The exterior band is broken up into spots. At the margin white dots. This form 
appears to be relatively rarer. — tumidifascia Hmps. (80 e). The exterior band is continuous and connected 
with the radial band, the former inside widened behind the cell, the latter extends with a frequently faded lobe 
above into the cell. — metaleuca Hmps. Exterior band as in tumidifascia , finely edged with black, the radial 
band without a projection into the cell, ending near the base with a fine spot. The white marginal dots are 
also present. 30—36 mm. South Africa. 
D. homoterma Meyr. Blackish-brown, abdomen at the base with long greyish-white hair. Costal 
margin of forewing somewhat darker. Radial band faded white, edged with white, its end almost touching 
the inner margin, whereby it passes over in a sharp angle into the exterior band which is inwardly lobate behind 
the cell as in tumidifascia. In the $ white triangular marginal dots. Hindwing lighter, at the base greyish- 
white. Thorax rather lighter than the forewing. 36—60 nnn. Cape Colony. This is probably only a dark 
form of tumidifascia. 
D. aequifascia n. sp. (80 e). Blackish-brown. The radial band extends almost to the base, where it 
encloses a black dot, little lighter than the ground-colour, edged with a somewhat whiter colour. In a short 
bow it extends into the somewhat undulate, rather equally broad exterior band. Hindwing just as dark. 
<$ 36 mm. East Africa. Type in the Berlin Museum. 
D. ammon Wllgr. (80 e). Hindwing just as red-brown as forewing. Exterior band broad, pale brown, 
edged with white, sometimes slightly separated from the radial band which is narrower, in the centre upcurved, 
ending before the base at a dark dot which is not always distinct. — goniophora Hmps. The exterior band does 
not begin near the costal margin but only in the centre of the wing (vein 5), and is connected with the radial 
band. -— fuscescens Hmps. The radial band is divided into 3 grey spots, the exterior band shows a notch 
towards the anal angle. — rhodesiensis Hmps. Before the centre of the inner margin a white spot with which 
the radial band may be united and thereby widened. Exterior band very much widened near the costal margin, 
both the bands lighter than in the other forms. The $ is paler, the marking thereby rather indistinct. Specimens 
with a purely white band are hampsoni Strd. 30 mm. South Africa. 
D. nomaqua Wkr. (80 f). The broader exterior band is outside straightly cut off, dark-edged, united 
with the rather broad short radial band. Colouring similar to that of ammon. Figure according to a specimen 
from South-West Africa, which thus probably belongs to this species. Walker’s description is insufficient, 
d 32—36 mm. South-West and South Africa. 
D. rufescens Hmps. (80 f). In both wings veins 7 + 8 stalked. Pale red-brown. The slightly lighter 
bands are edged with silvery white, below the costal margin somewhat broader. Radial band slightly bent, 
with a white streak to the base. At the distal margin mostly fine white lunae. $ paler, greyer, indistinctly 
marked. — furva Hmps. The two bands are dark-edged, only the basal ray white. 32—55 mm. South-Africa. 
venus. 
exul. 
tumidi¬ 
fascia 
metaleuca. 
liomoterma. 
aequifascia 
ammon. 
goniophora 
fuscescens. 
rhode¬ 
siensis 
nomaqua. 
rufescens. 
furva. 
