HIERA; EUCHLAENIDIA; HAPLOA. By Dr. A. Seitz. 
299 
7. Genus: liiera Drc. 
Here there is again an accessory cell, considerably larger than that of Pteroode-s. Systematizers who 
attach great weight to the accessory cell, therefore, separate this genus far from the preceding genera. We 
must, however, consider that there are species in which only certain specimens show accessory cells, and that 
specimens are known being otherwise normally developed, one side showing such a formation, the other not. 
Hitherto only 1 species is known: 
H. gyge Drc. (38 f). Orange-yellow. Costa of the forewing narrow, distal margin of all the wings gyge. 
broadly bordered with black. From the Volcano Chiriqui in Costa Rica. 
8. Genus: J^uchlaenfdm Hmps. 
Proboscis present. Palpi rising obliquely before the face. $ antennae doubly combed. In the forewing 
the 1st subcostal vein branches off shortly behind the middle, the 2nd before the end of the cell, the 3rd to 5th 
petioled; the upper radial from the upper cell-angle, the lower one with the upper median vein from the 
lower cell-angle, the middle median vein rising immediately after it. On the hindwing the middle median vein 
rises before the lower cell-angle. Based upon 1 species to which later on 2 others were yet added, all of them 
from South America. 
E. transcisa Wkr. (38 g). Forewings brown with a dull yellowish transverse band across the cell-end; transcisa 
hindwing orange, with a black marginal band being widened in the apical area. Rio de Janeiro; rare. 
E. neglecta Rothsch. (39 f). Forewings similar, but the hindwing orange with a black oval spot before neglectu. 
the proximal angle. A smaller species. Paraguay. 
E. ockendeni Rothsch. (38 f) from Peru likewise resembles transcisa , but the light transverse band ockenden 
in the forewing is steeper, and the black in the apical and anal parts of the hindwing is narrower. 
9. Genus: Haploa Hbn. 
This genus contains about half a dozen rather similar species changing from white to yellow, mostly 
marked black; they only occur in North America, and by their frequent occurrence at their habitats, by their 
habits and even the shape and colour of the wings they superficially recall the palearctic Nyctemeridae which 
are known to be absent in America. It is difficult to define the species, since even in long series of specimens from 
the same habitat there are hardly two found marked entirely the same (Holland). Scarcely two of the numerous 
informants fully agree in the homogeneousness of the single forms named, and as the larvae are not yet known 
of all the forms, the opinions cannot be put to the test. It has also been observed that at the habitats, where 
a yellow form was met with in crowds and almost exclusively, it was soon hereafter replaced by a white form 
so completely that not one yellow specimen was discovered among the white ones. —- The imagines are rather 
slim with a small head which, however, is not retracted or as in Arctia lowered to the chest, but rests 
freely on a distinct neck. The eyes are large, bare, ball-shaped, accessory eyes being present. Thorax short, 
abdomen cylindrical, extending as far as or beyond the anal angle of the hindwing. In the forewing the 1st 
subcostal vein branches off considerably before the upper cell-end, the 2nd anastomoses with the footstalk 
of the 3rd to 5th, thus forming a long, narrow areola. In the hindwing the upper median vein comes with 
the lowest radial from the lower cell-angle. There are 2 peculiar, feather-like, thin appendages at the abdominal 
end, fluttering in the gentlest current of air and, according to Siewers, serving for the flight, which sup¬ 
position, however, was not verified (in clyrnene). The larvae partly live on trees; the imagines are in some 
places of frequent occurrence, but local. — There exist several monographies on the genus. 
H. clyrnene Brown (= interrupto-marginata Beauvois, comma Wkr.) (38 g). Forewings bone-yellow clyrnene. 
with black margins and a black demi-band resting on the proximal margin before the proximal angle; hind¬ 
wing golden yellow with 1 or 2 black spots above the anal angle. Under surface quite golden yellow, without 
the black margins, but with the dark demi-band before the proximal angle of the forewing. -— Larva, according 
to Siewers (Canad. Entomol. X, p. 84), of a bright yellow with a white lateral stripe; above the latter and 
at the terminal joint red spotting. On Eupatorium, according to other explorers also on willows. Atlantic 
states of the Union, distributed from Canada to Georgia, in most of the districts common. 
H. colona Hbn. (— Carolina Harr., clyrnene Esp. nee Brown) (38 g) is coloured like clyrnene, but colona. 
the distal area of the forewing is traversed by black stripes in various directions. The golden yellow hindwing 
with 1 to 3 spots or also without any spot. (Aberr. a —d with Walker). The black stripes of the forewing are 
well developed in typical specimens, but they may be reduced in every direction and have entirely disappeared consc it a . 
in specimens exhibiting the least markings: ab. conscita Wkr. {— lactata Smith) (38 g). — reversa Stretch reversa. 
