122 
ATYRIA. By L. B. Prout. 
a 
parapostica. A. parapostica Dogn. Distinguished from most species of the group by the comparatively small size 
of the spots of the forewing, the outer one not reaching the 2nd median vein. The black border of the hind¬ 
wing continues about halfway round the costal and abdominal margins. Founded on a short series of SS from 
Loja. Perhaps the colour is slightly more ochreous than in its neighbours, but Dognin compared it chiefly 
with C. jatropharia and postica. 
jalapae. A. jalapae Schaus (= cyrene Druce, part.) (17 f). Black borders moderate, that of the hindwing run¬ 
ning a little Avav up the abdominal margin. Mexico to Panama and apparently in parts of Colombia and 
Ecuador. Single specimens from Guiana and parts of northern Brazil may represent a race (or races) with 
broader borders. 
albiventris. A. albiventris Walk. (17 f). Distinguishable by the crenulate distal edge of the yellow area of the hind¬ 
wing and, more or less, of the outer yellow spot of the forewing; only a very few specimens of other Atyriodes 
show sufficient undulation of this border to cause any uncertainly, albiventris , unfortunately the first described, 
is an extreme and rare form with the transverse band of the forewing entirely wanting. “Valley of the Amazon.” 
velina. — ab. velina Druce has the band present but not quite complete, a slight break in it occurring behind the 2nd 
crenulata. median. Rio Napo (type S). Scarcely worth separating from the following, which has priority. — ab. crenulata 
pachiteae. Warr. Band complete, but at its narrowest part absolutely thread-like. Rio Ucayali. — ab. pachiteae Strand. 
Band about 1 mm wide, or at least y 2 , at its narrowest part. Mouth of the Pachitea River, E. Peru. I had 
sunk it to crenulata ; in the “Lepidopterorum Catalogus” it was accidentally inserted out of place by the editor. 
I would include here all the forms in which the two yellow spots are well separated. This species belongs chiefly 
guiriana. to the Peruvian Amazons. — guiriana subsp. nov. is rather paler yellow, the abdomen with a yellow line in 
place of the usual stripe, the black area between the two yellow patches 2,5 mm wide at its narrowest and 
looks like an attempt to mimic the common C. jatropharia, from which of course it is distinguishable by the 
antenna, the short palpus, the anterior abbreviation of the outer spot of the forewing, etc.; the crenulation 
of the border of the hindwing is rather slight. Patao, Guiria, August 1891, 1 $ in the Tring Museum. Possibly 
a separate species. 
isthmica. A. isthmica Prout (= globulata Warr., MS.) (17 f). Distinguished from albiventris by the larger, much 
more rounded outer patch of the forewing, narrower border of the hindwing and especially the smooth (not 
crenulate) proximal odge of the black borders. Variation in the width of the oblique black bar of the fore¬ 
wing somewhat analogous to that of albiventris, but much less extreme; the type has it extremely slender. 
“Peru” (? Amazonas) and E. Colombia. Possibly a form of cyrene with the black parts reduced. 
iigulatum. A. figulatum Dogn. (17 f), founded on a <$ from Huancabamba, N. Peru, is differentiated from janeira 
by its size, its ovoid subbasal spot and on the hindwing the continuation of the black border (though extremely 
slenderly) along the entire abdominal margin. I suspect this is merely a local form (N. E. and E. Peru) of the 
following. 
cyrene. A. cyrene Druce ( coroiconis Strand) (17 f). Apart from its deeper yellow colour and on an average 
less narrow border of the hindwing, the shortening of the clistal-posterior black edging of the proximal spot 
separates this form from (subspecies?) jigulatum. Druce described from Bolivia and Strand gives a very 
perfect description of it (except that the antennal structure is not mentioned) from the same country (Coroico 
district ); it occurs also in Cuzco and according to Strand on the Pachitea River. 
janeira. A. janeira Schaus (17 g), besides being the only species of Atyriodes known from its faunistic area, 
is easy to distinguish by the black posterior border of the forewing. The name-typical form belongs to the 
lugens. district of Rio Janeiro. — lugens Prout (= approximans Schaus, Warr., nec Walk.) (17 g, as janeira), the 
type of the genus, has the black borders of the hindwing broader, a black costal border also developed on 
this wing both above and beneath, the yellow on the forewing also slightly restricted, its white apical scaling 
less (or scarcely) developed. Castro. Parana. Possibly a separate species. 
24. Genus: Atyrisa H.-Sch. 
The name of this genus was given by Hubner, the first description by Herrich-Schaeffer, who is 
therefore its author from the standpoint of the systematist. Characters of those Cyllopoda in which the palpus 
and <3 pectinations are not elongate, the latter usually ending in fascicles of cilia, but with the areole always 
simple. Hindtibia of the <$ commonly with a small knob-like process, presumably a modified spur. In view 
of the occasional inconstancy of the areole in Cyllopoda (see above) it seems scarcely tenable as a genus unless 
some new dichotomization can be devised; but I have retained it as a temporary convenience. Genotype: 
isis Hbn. 
