Publ. 13. Vlll. 1930. 
ARSENURA. By Dr. M. Dratjdt. 
793 
more monotonous and greyer than the lighter and more contrasting The larva is quite black, or with dark 
grey and black rings, the head and feet are reddish-yellow. It lives on Anona, Bombax, and other trees, often 
in great numbers. It pupates without a cocoon 6 inches deep in the soil. Widely distributed from Mexico to 
Southern Brazil. — erythrinae Fcibr. (134 b) apparently refers to a tiny form showing a somewhat more produced erythrinae. 
apex of the forewing, of a much more monotonous and greyer colouring, the whitish subterminal line being quite 
absent except a whitish brightening above the interior angle. Chiefly from Eastern Colombia (Medina) and 
North-West Brazil. ciocolatima /. n. (134 b) I denominate an interesting form or probably distinct species ciocolatina. 
from Villavicencio (Eastern Colombia), of which 2 $$ and 1 are before me from the Coll. Bang-Haas. The 
light brown ground shows a very slight claret-coloured tint, with an indistinct broad antemedian line, the 
postmedian band brightly contrasting, of a very deep chocolate brown, inwardly not distinctly defined by 
a dark line as in the other forms, but indistinct; the subterminal line behind it is neither lighter, only its 
exterior edge is darker blackish-brown, but likewise indistinct, broad and faded, with a triangular white spot 
above the interior angle. On the under surface hazily defined dark brown postmedian bands, behind them 
very hazy brownish-white very broad subterminal lines. Another from the Rio Songo, in the Berlin Museum, 
is quite similar. archianassa /. n. (125 b) is another, particularly large form from Western Colombia (e Coll, archianas- 
Niepelt) in which, as in the following rebeli, the postmedian portion of the costal margin increases in brightness 
so that the deep chestnut brown postmedian band is particularly distinct; subterminal line in its whole extent 
intermixed with blue-white scales; marginal area likewise very dark. 
A. albopicta Jord. The postmedian band of the forewing contrasts very little with the proximal portion albopicta. 
of the wing and is but little darker than the umber-brown marginal band which does not exhibit the light tan- 
coloured tint of armida ; in both wings a conspicuous white spot before the posterior angle, being triangular in 
the forewing; distal margin more oblique than in armida, posterior angle obtuser, the wing narrower for this 
reason. The white anal spot on the forewing beneath is large, distally produced on the submedian fold. 
Fonteboa (Tipper Amazons). 
A. rebeli Gschiv. (= oweni Sells .) (125 c) has more elongated wings than armida, with an intensely rebeli. 
whitish costal-marginal portion, below it the wing is of a soft grey colour, the costal-marginal portion of the 
hindwing is broadly whitish. Neuration different from armida, since vein 3 of fore wing arises almost midway 
between 2 and 4, whilst in armida much nearer to 4. The $$ often attain an extraordinary size, with an 
expanse of more than 20 cm. Ecuador. 
A. mossi Jord. (125 a) is a similar species with extraordinarily elongated wings, the apex of the forewing mossi. 
being strongly produced, the hindwing forming a long tail. The ground-colour is a monotonous warm brownish 
grey, the equally coloured subterminal line is expanded into large white spots above the interior angle in both 
wings. Para. Two fine couples from Itaituba, e Coll. Stgr., in the Berlin Museum. 
A. aspasia H.-Sch. (126 a) is a very large species, almost intermediary between rebeli and sylla. Dark aspasia. 
brown, base and median costal portion light grey; postmedian area inside indistinctly outlined, outside strongly 
excurved, projecting distally again above the interior angle, with an extensive yellowish-white brightening 
behind it. Apex suffused with rosy red. Brazil. Larva grey, marked brown with 4 thoracal and one conical 
caudal horn; it lives on Melastomaceae. 
A. biundulata Schs. (126 a) is very similar to aspasia, lighter, the postmedian area inwardly more biundulala. 
distinctly outlined, outside with 2 dents projecting in the middle. On the hindwing the submarginal ornaments 
are more intensely scaled light blue. 
A. thomsoni Schs. (127 a) differs considerably in the postmedian line being almost quite straight, bordered thomsoni. 
with white outside above the centre and above the interior angle, with large steel-grey spots behind it. Ground¬ 
colour light reddish-brown, base and costal-marginal half scaled grey. Hindwing shaped like that of hercules. 
British Guiana. 
A. arcaei Drc. (125 b). Greyish-brown, postmedian band especially in the $$ more red-brown, arcaei. 
subterminal line behind it spotted white on the veins; from the lower end of the discal streak a faded darker 
stripe extends obliquely to the base of the inner margin. Hindwing with a short caudal lobe, margin almost 
entire. Tinder surface brownish white, finely speckled with brown, with small darker median spots, a feebly 
darker more yellowish postmedian band and small blackish spots on either side of the veins in the submarginal 
area. Panama to Colombia. 
A. drucei Schs. (125 c) is very similar to arcaei above, darker, with somewhat narrower wings and a drucei. 
narrower chestnut-brown postmedian band; in arcaei there is one small white spot each on veins 4 and 5, in 
drucei a larger white spot between these two veins; in arcaei the subterminal line is followed by a double 
arcuate line of light blue scales, whilst drucei only shows a hazy blackish-brown arcuate line divided by a series 
of whitish scales. Hindwing very different, marked as in armida. There is only a flatly concave curve at the 
margin between the veins 5 and 7, whereas in arcaei all the ends of the veins are slightly notched. Under surface 
VI 100 
