pua. 
neu Has. 
Icnistriata. 
mhnrfa. 
citrina. 
seruba. 
parta. 
amaxiac- 
formis. 
402 HYPIDOTA; MICRODOTA; NANNODOTA; THALESA. By Dr. A. Seitz. 
M. pua Dyar (57 e) is quite unicolorously pale ochreous-yellow, the forewing traversed by lighter 
veins. Larger than the preceding. From Mexico (Guerrero). 
83. Genus : Hypidota Schs. 
Distinguished from all its allies by the stunted proboscis, owing to which also the palpi are much shorter; 
the middle joint scarcely longer than the short basal joint, the terminal joint rudimentary. In the forewing 
the 1st subcostal vein comes about from the middle of the upper cell-wall, the 2nd branches off rather far before 
its end, 3 to 5 have a long footstalk. Transverse vein very slightly curved in. Only 1 unicolorously yellowish 
species is known, from the northern part of South Brazil, and of this only the <$. 
H. nettrias Schs. (57 f). Unicolorously whitish ochreous-yellow, with reddish-yellow antennae, orange- 
yellow abdomen, and brownish veins on the wings. Castro (Parana). 
80. Genus: Microtloia Dgn. 
Proboscis feeble, but still present. Palpi long, projecting, particularly the middle joint well developed, 
twice as long as in the preceding genus. Cell very broad and long, the 1st subcostal vein branching off behind 
the middle of the upper cell-wall, the 2nd rising directly before the upper cell-angle. Only one very small 
species (expanse: 20 mm). 
M. lenistriata Dgn. (— pellucida Rothsch.) (57 f). Wings almost quite hyaline, forewing at the border, 
and hindwings quite faintly tinged yellowish. The transverse vein of the forewing and the posterior part of the 
lower cell-wall more distinctly marked. Venezuela, Paraguay. 
85. Genus: j^aianorfota Hmps. 
Scarcely larger than the preceding genus, but the proboscis fully developed. Different besides from 
Hypidota by the palpi not being shortened, but in contrast with Microdota, they are not straightly porrect, 
but bent up before the face. The anterior legs show long hair-brushes on the inside of the tibiae and femora. 
On the forewing the 2nd subcostal vein rises but slightly before the upper cell-angle, this being a mark of distinc¬ 
tion from Halisidota which genus the Nannodota already approximate very much. 
N. minuta Rothsch. (57 f). Like a very small Halisidota, as which it was also described. Body and 
forewings of a very bright yellow, the latter bestrewed with numerous, small, brown dots and hooks, a somewhat 
distinct, small, dark spot above the anal angle. Hindwings pale yellow. Peru; apparently not common. 
86. Genus: Tlialesa Schs. 
Almost entirely like Halisidota, approaching some of them (for instance annulosa, catenulata a. o.) 
so very much that the distinction is only possible by means of a magnifying glass, the difference consisting 
in the absence of vein 5 on the hindwing, whereas in Halisidota all the veins are present. The larva exhibiting 
also the white, long, thin pencils on the anterior and posterior parts has besides paired, above smoothly clipped 
brushes on the 3rd to 10th segments. All the forms are very closely allied to each other. 
Th. citrina Sepp (57 f). Forewing bright yellow with numerous, finely marked annular rows running 
parallel to the border. Behind the middle, likewise parallel to the border, a brown nebulous line. The apical 
part of the costa and the whole proximal margin, except the base of it, are brown. Mexico to the Amazon. — 
seruba H.-Schdff. (= albipuncta Rothsch.) is a larger form from Ecuador and Peru with a very strong median 
oblique stripe and thick inner-marginal stripe. — parva Rothsch. (57 f), from East Colombia to Guiana and the 
Amazon, is a small form of pale markings, which I figure from Villavicencio. — Larva of a delicate rosy-red 
with a similar head with white markings, and yellow lateral markings tinted in a flesh-colour. Across the dorsum 
and on both sides longitudinal rows of brownish brushes with reddish-white crowns, and on the anterior and 
posterior parts there are long, white hair-pencils projecting beyond the larva. It lives on Inga vera and changes 
into a mahagoni-brown pupa in an oviform web intermixed with hair, yielding the imago after about 11 days. 
Th. amaxiaefonnis Rothsch. (57 f) entirely resembles a citrina in its shape and size, but the forewing 
is of a paler yellow, the median stripe is absent and the dark annular rows are more scanty, in some places 
scarcely indicated. Ecuador. 
