vermiculata. 
intervenata. 
fulvitincta. 
geminipunc¬ 
ta. 
ochodontaria. 
semicasta- 
nea. 
squamiplaga. 
incendiata. 
1162 EROSIA. By M. Gaede. 
The hindwing shows grey coarse scales in the groove and below vein 2, the pencil at the inner margin is 
pale yellow. 16 mm. Peru. 
Th. vermiculata Dogn. Ground-colour grey with black scales. Interior and exterior lines of forewing 
indicated by red and black scales, black scales before the excision. Exterior line of hindwing rounded, indicated 
by a few red scales, a straight row of streaks behind it on the veins. $ 16 mm. Colombia. 
Th. intervenata Warr. (171 h). Wings of greyish yellow, of $ greyish brown, lighter at the apex of 
the forewing. Interior line at % of the length of the wing strongly excurved below the middle, edged with dark 
outside at the costal and inner margins. Exterior line at 2 / 3 , vertical as far as vein 4, then incurved, forming 
a truncate dent. Median area somewhat darker. Hindwing the same, besides lighter at the cross-vein. 18 to 
22 mm. Bolivia. 
Th. fulvitincta Dogn. Grey, feebly strewn with black. Interior and exterior lines of forewing indicated 
above the inner margin by brown dots, at the costal margin by brown scales, in the middle by reddish yellow 
dusting. The two lines approach each other at the inner margin. Reddish yellow dusting before the excision, 
edged with black inside. On the hindwing both the lines are indicated by reddish yellow dusting. $ 18 mm. 
Colombia. 
Th. geminipuncta Warr. (171 h). Pinkish brown, also violettish brown, the median band darker. In¬ 
terior line of forewing from ]/ 3 costal margin to % inner margin, projecting far obtusely at the median vein. 
Exterior line from 2 / 3 costal margin, extra-angular in the middle, then inward as far as the submedian fold, 
outward below the latter. Both lines above the inner margin with black spots, intensified at the costal margin. 
Dusted dark at the anal angle. Hindwing of the same colouring, the angled band continuous as far as the inner 
margin, its exterior edge introangular at vein 2. Hindwing of the $ beneath with large rusty brown scales in 
the groove, grey scales behind them and also at vein 2 as in squamiplaga. 18—20 mm. Peru, Bolivia. — The 
name intervenata Warr. may only refer to pale specimens of this species. 
Th. ochodontaria Sn. Yellowish red. Forewing dark greyish brown in the middle, with a blackish brown 
lima at the distal margin. Hindwing with a broader median area, with yellow hairs at the inner margin. Warren 
thinks it possible that his squamiplaga resembles ochodontaria the description of which is difficult to understand. 
I myself rather think that geminipuncta might be synonymous with ochodontaria. The latter is said to have 
an expanse of 24 mm, thus much larger than all the normal species of Thysanocraspeda, but the marking is 
rather similar in ochodontaria and geminipuncta, the dots are very indistinct also in my specimens of gemini¬ 
puncta, rf 24 mm. Cucqueta. 
The two last species are somewhat less scantily marked. 
Th. semicastanea Warr. (171 h). Ground-colour greyish white, the marking light red-brown. The fore¬ 
wing shows the interior border of the median band strongly extra-angular at the median vein, then obliquely 
inward, the exterior border rather vertical. Behind it, at some distance, a faded greyish brown band. A broad 
luna before the excision. Hindwing with an almost straight interior line and a slightly bent exterior line. Behind 
the interior line the w hole space above vein 3 is red-brown. The pencil at the inner margin grey. 21 mm. Peru. 
Th. squamiplaga Warr. (171 h). Very pale brownish grey, the marking darker red-brown than in semi¬ 
castanea. Interior line of forewing slightly excurved from the middle of the costal margin, then inward to 3 / 5 
inner margin. Exterior line somewhat concave between % costal margin and vein 6 as well as between vein 
4 and 2 / 3 inner margin. In the anterior part the median area is incompletely filled with red-brown. A red-brown 
luna at the excision. A tuft of grey hair at the anal angle. Hindwing nut-brown, grey only at the base and 
in the submedian fold. The bent median band is somewhat darker, very indistinct, edged by a pale line outside. 
3 21 mm. Peru. 
31. Genus: Erosia Gn. 
Contours of forewing as in E. acutangularia. Neuration of forewing almost exactly the same as in that 
species, but vein 5 arises a little farther from 6 + 7. Veins 3+4 and 6 + 7 of hindwing stalked, the stalk 
of 6 + 7 short, 5 less strong, close at vein 6. The inner margin of the <§ exhibits a broad turned down edge 
with scent-hair on the upper surface. Veins 3 + 4 of the 9 are also only short-stalked. In accordance with 
Warren, only 1 species is ranged here, the other Erosia- species described by older authors are now mostly 
placed to the genus Epiplema. 
E. incendiata Gn. (§ = birostrata Gn., furcillata Fldr.) (171 h, i). $ ground-colour reddish brown. In¬ 
terior line from % costal margin horizontally to the base of vein 5, thick, dark brown, after this more finely 
inward to 2 / 5 inner margin. Exterior line from 2 / 3 costal margin obliquely to vein 4, where it shows white dots, 
then light on, inward as far as vein 2, outward below it. The median area below vein 2 darker. The interior 
and exterior lines on the hindwing strongly angled, radially in the middle intensely rusty red, the inner margin 
yellowish white. The seem easily to become oily. $ forewing as in the <$, but the exterior line is fine, light, 
