Corrections to the Lithosiinae. By Dr. M. Draudt. — Micrarctiinae. By Dr. A. Seitz. 293 
f 
T. bicolor Grt. (= argillacea Pack.) (36 i). Body and wings are blackish-brown; collar, anal tuft, bicolor. 
and a costal-marginal streak being pointed towards the apex are yellow. Expanse of wings: 30 mm. Canada; 
United States, Colorado. 
Correction and Additions to the LJthosiinae. 
P. 265. In the 47th genus Ascaptesyle is mentioned once more. This genus is identical with the 31st 
genus Ascaptesyle Dyar on p. 254. 
P. 272. To the genus Tuina Btlr. add yet the following species: T. maurella sp. nov. (38 a). Velvety maurella. 
black, collar, abdominal sides, a small basal spot of the forewing, and the basal two thirds of the hindwing 
are of a deep rosy-red. From Costa Rica (Orosi); 2 specimens from the Coll. A. H. Fassl. 
III. Micrarctiinae. 
It has already been stated in Vol. II (p. 71), when introducing this name, that this division does not 
represent the establishing of a systematically definable subfamily, but a heading into which those Arctiid genera 
are ranged which are not easily inserted in the Nolinae, Lithosiinae, Nyctemerinae, Hypsinae etc. The genera 
united here also exhibit of course great differences, as for instance the single genera of the Spilosominae, Calli- 
morphinae etc., and beside the Apantesis closety allied to our European Orodemnias and Parasemia there are 
Hoplarctia recalling the palearctic Ocnogyna, moreover the Phragmatobia, the Argina forming the transition 
to the Hypsinae, and others. We place here also those genera forming, so to speak, the point of junction between 
the Lithosiinae arid the other Arctiid branches. These are the Gnophria, considered by some systematizers 
as Lithosiinae, by others as Arctiinae. The Atolmis, as this genus is denominated in Vol. X, are still kept 
separated from the Gnophoia in Kirby’s Catalogue, to which genus, beside the Gn. rubricollis (Vol. II, p. 70), 
some Americans are yet placed, which we have dealt with as indisputable Lithosia, such as Gnamptonychia 
flavicollis, which also greatly approximate the typical Lithosiinae- genera, such as the Macroptila, Agylla and 
Ilenia {Lithosia). We cannot expect many common features from a group of animals purely formed by exclusion. 
The deviations from the typical Arctiinae, by which its separate position is effected, do not move in the same 
direction. We observe the Eubaphe and Virbia forming the transition to the Lithosiinae, the Haploa to the 
Callimorphinae, the Argina to the Hypsinae, the Hoplarctia to the Spilosominae, the Orodemnias and Apantesis 
to the genuine Arctia. Some forms also recall the Phaegopterinae, so that we find resemblances to all the larger 
groups of Arctiidae. 
More constant than the imagines are the larvae, in which we do not meet with any deviations as exhibited 
in the Spilosominae by the larva of Isia Isabella being armed with dorsal brushes, or by the Phaegopterinae 
with even long hair-pencils. Nor do we scarcely find in this group any real tree-larvae, as for instance in the 
Hyphantria, Aganais etc. 
As to the colouring, a bright red and orange-yellow are the usual colours, being set off by black 
spotting like in most of the Arctiidae. Even in the Utetheisa, which in the Old World almost all exhibit a purely 
white ground-colour, in certain American forms the red colour of the hindwings appears yet distinctly, 
though in certain local forms it fades in the same way as in the allied Haploa, where the orange colour of the 
hindwings gradually disappears together with the black spotting and the entirely white forms get the upper- 
hand, so that in most of the Spilosominae the whole surface is already white and only the end of the abdomen 
shows yet some of the warning colour. 
We may presume that nearly all the Micrarctiinae occur in great numbers of specimens. If, as we see 
in some Eubaphe, Virbia or Apantesis species, some are more rarely met with in collections, and are more highly 
estimated on account of their supposed rareness, we may be certain that the reason of this symptom is the 
inaccessibility of the habitats or the greater capability of hiding. The Parasemia, Leptarctia, nearly all the 
more widely distributed forms of the Apantesis, the Phragmatobia etc. are almost all just as common insects 
as most of the Spilosominae are, the Callimorphinae, or even the Phaegopterinae, which may sometimes 
grow extremely troublesome when capturing them by the lamp; and if the food-plants would not be throughout 
futile weeds, many a larval species of this group would be able to grow as pernicious as the Spilosomina Hyphan¬ 
tria cunea. 
