PubP 3. V. 1938 
ATYRIODES. By L. B. Prout. 
121 
work recorded it from Loja, but this has not, I think, been confirmed. In both this and expansi fascia, the 
dividing-wall of the areole is occasionally obsolete. 
C. gibbifrons Prout (17 e). The face, which is rounded and somewhat prominent in postica, is here gibbifron -. 
more strongly protuberant, especially in the <$. Hindtibia of white, with 2 very short spurs, tarsus less ex¬ 
tremely short than in postica. Pectinations much shorter (less than twice diameter of shaft). The black costal 
border of the forewing is on an average not quite so narrow and there are, in addition, a few blackish scales 
following it and nearly always a blackening of the median vein; on the other hand, the black distal area shows 
much less tendency than in postica to project basewards on hindmargin. Border of hindwing on an average 
a little broader than in that species. Venezuela, the type series from Suapure. The British Museum lias a 
pair of small specimens from Tobago. 
C. nigrivena Prout (17 e). Larger and with more black than gibbifrons, the abdomen black beneath, nigrivena. 
with a lateral and a posterior dorsal yellow line. All the borders of the hindwing (excepting the 
basal part of the hindmargin) are black, the costal (except a narrow yellow stripe from base) and distal broadly 
so. S. E. Brazil, the type from Nova Friburgo; only $$ yet known. Very similar to Atyria dubia, which has 
the areole single, the abdomen dorsally without the yellow line. 
C. latiflava Warr. (17 e), founded on a $ from “Colombia” (probably Bogota, the known locality), latiflava. 
has the hindmargin (narrowly) black on the fore- but not on the hindwing, the latter showing no black except 
the narrow distal border. On the underside the black of the hindmargin of the forewing is replaced by whitish. 
Pectinations shortish-moderate. <$ hindleg much as in postica. I have seen old specimens purporting to come 
from “British Guiana” and “Brazil" but doubt their correctness. 
C. expansifascia Prout (17 e). Similar to latiflava; pulpus, as in that species, with the terminal joint expansifas- 
rather short. Pectinations shorter, scarcely twice the diameter of the shaft. Yellow proximal patch of fore¬ 
wing less triangular than in latiflava, its distal edge more oblique and more rounded, so that the black band 
beyond expands both anteriorly and posteriorly; hindmargin black both above and beneath. Hindwing with 
the terminal band slightly broader than in latiflava and with partial blackening of the costal and abdominal 
margins. Bolivia (the type from Charaplaya) and E. Peru. 
C. breviplaga Dogn. (17 e) was compared with quicha Schaus (an Atyria ), but differentiated by the breviplaga. 
longer pectinations, complete absence of any black subcostal band on the hindwing beneath, the more rounded 
outer spot of the fore wing and the less extended white of the face (here confined to its central and lower part). 
Structure and general coloration (particularly of the abdomen) nearly as in postica, the face almost as prom¬ 
inent as in gibbifrons, the palpus rather short. I have before me topotypical specimens, a <$ from Moyobamba 
and an aberration (Joicey collection) from Charape, N. Peru. — versicolor Dogn., a larger £ from Numbala versicolor. 
River, near Loja, is probably, according to its author himself, a mere aberration, at most a local race, with 
the yellow parts considerably paler; Dognin (in litt., 1 August 1917) found “no other outstanding difference”, 
though earlier he suggested it was an albinistic form of a species between breviplaga and postica. The descrip¬ 
tion (by oversight ?) implies that the black posterior border of the forewing is reproduced beneath, which is not the 
case in breviplaga. — Dr. H. Sick (see below) makes this a Streblopoda, but I suspect a misidentification. 
C. roxana Druce (16 k). The only species in the group with red ground-colour. Palpus rather short, roxana. 
Pectinations little longer than diameter of shaft, heavily ciliated. Besides the type <$, from the Valley of 
the Cosnipata, E. Peru, I have seen only a from Santa Ana, 3000 feet (Yale Peruvian Expedition). 
C. angustistriga Warr. (17 e). In structure near roxana. Abdomen of the long and slender. Recog- angustistri- 
nizable by the exceptionally narrowed longitudinal yellow streak (lnndmarginal) of the forewing. Black border ga 
of hindwing narrow except at apex. Hindleg formed nearly as in gibbifrons. S. E. Peru, 
C. bipuncta Warr., a from “Peru”, expands 35 mm. Forewing with the longitudinal patch about bipunda. 
2 3, placed between the median and submedian veins, the outer one long and irregular; apical fringe white at tip. 
Hindwing yellow, abdominal margin narrowly black, distal border broader, widening to before apex where it 
is squarely cut off; a black spot at extreme base, another at the anterior end of the discocellular. 
23. Genus: Aiyriotles Warr. 
Characters nearly as in Cijllopoda, of which it might be regarded as a section, the q antenna with 
fascicles of long cilia, not pectinate. Face not protuberant. Palpus rather short. Hindtibia of the $ with a 
stumpy spurlike process or aborted spur. Just as we go to press, Dr. H. Sick shows, from important diffe¬ 
rences in the tympanum, that cyrene, figulatum and par a postica should form a separate genus 
(Streblopoda Sick) . 
VIII 
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