566 
THERETRA. By Dr. A. Seitz. 
incar natci. 
papucnsis. 
inornata. 
latreillei. 
lucasi. 
montana. 
distincta. 
iryoni. 
alecto. 
stiff usa 
Th. iticamata R. & J. (67 d). Recognizable by the thick black central dot and the thick black transverse 
stripe before the marginal area of the forewing, which extends into the apex in a slight bow, and above all by 
the bright claret-coloured coating of the forewing, which is particularly conspicuous in the region of this 
antemarginal streak. From Sumba. 
Th. papuensis J. & T. may be more allied to incarnata than to clotho. The black spot at the base of 
the abdomen is extinct or absent. Forewing of A either dull greenish-grey or pinkish loam-coloured, and as in 
manuselensis the oblique line of the forewing is separated from the apical line and is followed by a short costal 
line. Anal spot of hindwing more rosy than in the forms of clotho. From the Wandammen Mts. in Dutch 
New Guinea. 
Th. inornata Wkr. (= pallida MisJc.) (67 e) is almost exactly like the preceding ones, but without the 
claret reflection in the forewing and without the bright yellowish-brown area in the marginal portion of the 
hindwing, which is only very little lighter brown than the rest of the wing. The oblique stripe of the forewing 
is duller. Queensland. 
Th. latreillei Me Leay ( = comminuens Wkr., amara Swh., deserta Btlr., walducki Btlr., luteotincta 
Luc.) (67 e) is extremely similar to the following tryoni, but it has quite a different shape of the wings; both 
the wings are more pointed, narrower, their distal margins curved, whereby the apex of the forewing is produced. 
Parallel to the submarginal transverse stripe on the forewing there are still duller stripes. On the sides of the 
head and thorax white fur. This is the Papuan form; it is distributed from Queensland across New Guinea, 
the Salomons to the Bismarck Archipelago and the Moluccas. — lucasi Wkr. (= leucasi Mr., spilota Mr., procne 
Clem., velox Sn. nec F., tenebrosa Mr.) differs from typical latreillei in the more distinct dorsal line across the 
abdomen, a dark, frequently insignificant basal spot at the inner margin of the forewing, and 6 discal lines, the 
first of which is almost invariably expanded at the apex of the cell. India and Andamans, as well as Ceylon; 
from there across Indo-China to Malacca and the Sunda Is., to the north as far as China and the Philippines. —- 
montana Mell are summer insects from the mountain-districts of Kwang-Tung, with particularly distinct lines, 
the postdiscal area beneath being of a bright yellow showing through above. — distincta Mell, from South China, 
exhibit the postdiscal punctiform line on the hindwing beneath prolonged into tiny streaks which are sometimes 
confluent, forming small dents. — Larva green or brown; on the 4th ring laterally a very large, almost round 
fictitious eye; on the body especially in the brown form dark, light-edged oblique streaks. Horn not large, in 
the adult insect strongly curved. The fictitious eye is of a very fiery red and blue iridescence, with a strong 
enamel glitter (according to Anna Semper and Otto Koch: “diamond-like”). It has a somewhat erect position, 
contrary to the mostly transverse-oval position. The imitation of a snake is here particularly obvious; an adult 
specimen which I found in Singapore also made snake-like movements with its head. On species of Vitis, 
Balsamineae, Begoniae, and Saurauja tristyla, as well as on Gissus acida. Imago nearly everywhere common, 
where it occurs. 
Th. tryoni Misk. (67 e). The differences from latreillei have been stated above; most conspicuous is 
the broad, very black hindwing, the straight margin of the forewing with fringes that are dotted black at 
the ends of the veins, and the absence of the light thoracal coating. From Australia across New Guinea to the 
Salomons and Moluccas. 
Th. alecto L. (Vol. II, pi. 42 f). The much deeper coloured typical form presumably does not cross the 
palaearctic frontier; it chiefly occurs in India, to the south as far as the Sunda Is., Tenimber and the Key Is. 
To the east it goes as far as Formosa and the Lu-Chu Is., but to the north of the Linchot Is. it has no more 
been found, whereas it occurs yet. in the Philippines. In the palaearctic region it is represented by the form 
cretica Bsd. (cf. Vol. II, p. 259) which is of a considerably paler colour. Indian alecto also frequently exhibit 
the black scales strewn on the forewing, which often occurs in Celerio euphorbiae and nicaea. — Larva varying 
from green to brown; on the sides of the lings 4 —10 there are dark eye-spots surrounded by yellow; that on 
the 4th ring hardly differs in the somewhat deeper colouring, sometimes not at all, and it by no means represents 
such a deceptive snake’s eye as in latreillei-, on vine, moreover on Paederia, Psychotria and Morinda; more 
rarely on the Euphorbiacea Glochidion. Pupa slender, 6—8 cm long, with a proboscis-case being raised like 
a beak, though not forming a nose, earth-grey with bone-coloured eyes. The imagines swarm in the evening 
between 6 and 7 p. m. on blossoms and also come to the light; they are common nearly everywhere in their 
patria, and the pupae of the Anterior-Asiatic form are frequently exported to Europe. 
Th. suffusa Wkr. (= hector Wkr.) (67 d) is distinguished from alecto bv the forewing and abdomen 
being traversed by a broad light, dark-edged stripe. Hindwing purple pink with an oblique deep marginal band 
and base, but the black-white inner-marginal area of alecto is quite absent here; hindwing red as far as the inner 
margin. — Larva lighter or darker green, separated from latreillei by the eye on ring 4 not differing essentially 
from the analogous spots on the 5th to 10th rings. All the lateral spots are more or less dark bluish-green, 
