PACHYMETANA. By Dr. C. Aurivillius. 
27 1 
Smaller species. The with a frequently large silvery spot at the end of the discal cell of the forewing. The 
are very similar to the <$$, with unicoloured yellow or reddish hmdwings. The species of this group correspond 
in the neuration with the typical species of Pachymetana of the first group, but in the marking and habitus they differ 
rather considerably. Tams recently placed them to the genus Hypotrabala. The larvae are still unknown. Whether the 
three species newly described by Tams belong hereto, I do not know. 
P. neavei Auriv. £ (38 a). Chest and ventrum red-brown. Forewing beneath reddish with indistinct neavei. 
markings. Hindwing beneath as above. The $ is larger (about 59 mm) with more oblong and pointed forewings, 
the discal spot of which is blackish with a grey centre; its submarginal band is thicker and darker. Hindwing 
and abdomen coloured as in the Nyassa Land. 
P. guttata Auriv. (38 a) is distinguished by the distinctly prominent marking and clear colouring guttata. 
of the <$. $ unknown. Gold Coast. 
P. argenteoguttata Auriv. (38 a). Although in the only specimen examined of this species vein 8 of the argenteogui- 
forewing rises exactly from the anterior angle of the discal cell and the basal cell of the hindwing shows a very iaia ' 
short and feeble accessory vein, yet I place the species hereto, because it is evidently closely allied with the 
others. The figure suffices to recognise the $. The $ is unknown. South Africa. 
P. horridula Tams. Palpi, head, and thorax yellowish-brown with a dark admixture. Abdomen varying horridula. 
from tan-colour to salmon-colour. Forewing yellowish brown, profusely spotted with dark brown and blackish 
brown, costal margin and distal-marginal portion tan-coloured yellow, veins speckled with yellowish; the first 
transverse line is double, undulating, blackish, vertical towards the costal margin, angular at the discal cell 
and then vertical towards the centre of the posterior margin; a large lustrous white reniform spot surrounded 
with black is at the end of the discal cell; the discal transverse line is double, undulating, blackish, curved between 
the costal margin and vein 5, then at first parallel with the distal margin and hereafter with the subbasal 
line as far as the posterior margin; the submarginal line is indistinctly distally notched with the tips on the 
veins. Fringes blackish-grey. Hindwing light yellowish, a little coated with reddish, at the costal margin 
coloured like the fore wing. Expanse of wings: 46 mm. The $ is similar to the (J, but instead of the white 
discal spot of the forewing it has a black ring-spot filled with the ground-colour. Expanse of wings: 70 to 
74 mm. North-West Rhodesia. — seydeli Tams. <$. Hindwing salmon-coloured. Abdomen cinnamon-brown, seydeli. 
at the base salmon-coloured. Forewing above and beneath reddish. $. Hindwing red-brown. Expanse of 
wings: 52 (rf) to 70 mm. Belgian Congo. 
P. joiceyi Tams. Palpi yellowish-brown, above chestnut-brown. Head and thorax (for the greatest joiceyi. 
part) chestnut-brown. Abdomen above tan-coloured yellow, beneath reddish-yellow. Forewing parted in 
two by an irregular line extending from the apex to the centre of the posterior margin; the basal portion 
is orange-yellow, speckled with red, and encloses the double mahogani-coloured first transverse line which 
is shaped exactly as in horridula', at the end of the discal cell a lustrous white spot surrounded by red scales; 
the discal transverse line is also double and mahogani-coloured, it begins at the costal margin above the 
white discal dot, from where it runs vertically to the costal margin as far as vein 7, where it bends round, 
almost parallel to the distal margin as far as vein 7, then being interrupted and finally extending from vein 
2 to the posterior margin. The above mentioned oblique line proceeding from the apex and parting the 
surface of the forewing is twice bent in the anterior portion and is behind, from vein 4 to the posterior margin, 
closely adjacent to the discal transverse line; at the posterior margin outside of the discal line there is an almost 
quadrangular chestnut-brown spot almost reaching the anal angle; the rest of the marginal portion is grey 
or violettish-grey and encloses three mahogani-coloured, yellow-speckled submarginal spots of the areas 4 
to 6. Fringes violettish-grey with small yellowish spots at the ends of the veins. Hindwing yellowish, at the 
costal margin red-brown. Expanse of wings: 50 mm. Chari-Tsad District. The species evidently differs from 
all the others in the slanting line of partition on the fore wing. 
P. dollmanni Tams. <$. Palpi yellowish ochreous, on the outside reddish. Frons antimony-coloured, dollmanni. 
in the centre red-spotted. Thorax antimony-coloured, with reddish stripes. Abdomen antimony-coloured, 
above at the base orange-yellow. Forewing reddish cinnamon-brown, speckled with yellowish, with four almost 
parallel and straight,- almost equidistant, oblique, snuff-coloured transverse bands, and an Isabel-coloured 
submarginal band which is broader at the apex of the wing, narrower towards the anal angle, and distally sharply 
angled with the tips on the veins. Hindwing antimony-coloured, at the costal margin and apex reddish or 
brownish. Expanse of wings: 50 mm. — $. Quite similar to the <J, but larger (68 mm), and the fore wing beneath 
in the basal half clad with long hair-like scales. North West Rhodesia. 
P. nyassana Auriv. <$ unknown. The $ (39 a) differs from the other species of the genus in the pectinations nyassanc. 
of the quite black antennae being moderately long and apically gradually shortening. Head, thorax, and 
forewing above fawn-coloured or yellowish-grey. Abdomen above light yellowish, beneath darker. Hindwing 
light unicoloured yellow, at the costal margin often narrowly darkened. Forewing pointed with a very feebly 
bent distal margin; above with double, brownish-grey, undulating transverse lines, a tiny black discal dot and 
scalariform sub marginal line which is sometimes darkened in front; all these markings are not very distinct. 
Nyassa Land and Manow in German East Africa. 
