PALUSTRA. By Dr. A. Seitz. 
323 
A. thursbyi Rothsch. Head, thorax and forewings dark trunk-coloured, intermixed with small, yolk- thursbyi. 
coloured hairs and scales, chest and legs tinged orange-yellow; abdomen orange. Hindwings lighter, likewise 
tinted somewhat yolk-coloured. Size about like that of vulpina (41 d). Patagonia. 
A. klagesi Rothscli. Size of the preceding; thorax and forewings dark chocolate-brown, somewhat klagcsi. 
wooden-brown. Hindwings quite wooden-brown. Abdomen orange, with an orange anal tuft. From the Upper 
Amazon (Fonteboa). 
A. persimilis Bunn. (41 f). Above dark sooty-brown, the disc of the wings faintly lighter. All the persimilis. 
wings above and beneath with a distinct cell-end mark. Abdomen blackish-brown, in the with an orange- 
yellow lateral stripe, in the $ with dull yolk-coloured bands. South and Central Brazil, not rare. 
A. fusca Wkr. (= multifarior Bunn.) (41 h). Dark brown, larger than the preceding, $ with finely fusca. 
dusted forewings, $ with traces of a submarginal band behind the cell-end spot. Hindwings in the d'pale yellow¬ 
ish, dusted with a dull brown; abdomen dull orange-yellow, particularly on the sides, in the $ with dark dorsal 
bands. South Brazil and Argentina. 
A. lateralis Wkr. Almost exactly like persimilis, but the forewings above somewhat mixed with lateralis. 
grey and more intensely crossed by light veins. South Brazil. 
A. marmorata Rothsch. (41 f). Dark earthy-brown with somewhat lighter hindwings. Forewing marmorata. 
in the basal half with faded dark spots being the most prominent at, behind and below the cell-end. Teeth 
of antennae very long. Peru. 
A. steinbachi Rothsch. (41 i) is almost exactly coloured and marked like a small persimilis ; disc steinbachi. 
of the wings in the $ faintly lighter, in the $ with a distinct cell-end spot and a dark nebulous stripe before 
the marginal area. South Argentina. 
A. nitida Jones. 35 mm; in the $ the head and thorax are dark brown, abdomen brown with nitida. 
lateral yellow stripes; forewings brown; hindwings creamy white, veins, costa and border brown. Beneath 
the forewings are brown, at the base with yellow hair, below the median as far as the proximal margin they 
are whitish; hindwings creamy white with the costal area intensely suffused with brown, and a brown cell-end 
luna. From Castro, Parana (Brazil). 
A. reversa Jones. $ of the size of the preceding. Head and thorax dark red-brown, antennae lighter rcversa. 
brown, abdomen above golden yellow. Forewings creamy-white, towards the margin brownish, veins red- 
brown; in the costal area a very dark band. Proximal margin as far as the submedian suffused with brown. 
Hindwings white with a brown costa. Castro (Parana). 
A. pectinalis Jones is larger, the antennae in the A with very long pinnae. Body dark brown, abdomen peclinalis. 
orange; forewing brown, in the disc lighter and somewhat diaphanous, the proximal margin at the base covered 
with hair. Hindwings whitish, suffused with a yellowish brown. Castro. 
A. cnethocampoides Rothsch. (41 e). Forewings more ashy-grey with a dark cell-end and a transverse cnethocam- 
chain of dark nebulous dots before the marginal area, whereby a faint resemblance is created to certain palearctic poides. 
Thaumetopoea. From Salta in North Argentina. 
A. variegata Schs. (41 i). With brighter and more variegated markings than the other Antarctia. variegaia. 
Forewings pale yellowish-grey; body dark brown, head, collar and an inner-marginal spot at the base of the 
forewing honey-coloured. On the forewing a dark postmedian band and a spot before and at the cell-end are 
blackish-brown, all these dark markings being bordered with white. Brazil: Parana. 
A. rhodosoma Hmps. is the size of the preceding, but recognizable by the red abdomen showing rhodosoma. 
above small black dorsal spots, and by the semi-transparent, light hindwings. Forewings of a light reddish- 
brown with a yellowish base, at the discal spot tinted dark brown. Chile. 
A. duckitlfieldia Schs. (41 h). Only the $ is known. Thorax and wings earthy-brown, the wings crossed duckinfiel- 
by thick, honey-coloured veins and similarly fringed. Abdomen yolk-coloured, dorsum and sides spotted dark. dia. 
Abdominal end with orange-red hair. Central Brazil. 
22. Genus: Palustra Bar. 
The ,,water-arctia“ form a group very closely allied to the Antarctia, but owing to the peculiarity of 
their habits they have undergone great changes in order to adapt themselves to the aquatic life, particulary 
in their pupal stage. The $$ of Palustra burmeisteri secrete much more anal wool than the European Lymantria 
dispar, a similar parallel prevalent between the Lymantriids Porthesia similis and Euproctis chrysorrhoea on 
the one hand and the Scirpophaga growing up in the water like Palustra on the other hand, the species of which 
have been denominated according to those Lymantriids Scirpophaga ,,auriflua“ Z. and Scirpophaga ,,chrysor¬ 
rhoea 1 ' Z. We have not allowed them to be confounded with other genera, such as Maenas, Lacydes, Eutaenia 
