Section D contains the strongest-bodied and most swift-flying of the genus. They love sunlight, and frequent the borders of streams and the edges of puddles, where they gather together in swarms consisting of several species, greedily sucking up the moisture, and, when disturbed, circling round in the air, or flying high and with great strength and rapidity. In the following Table I have arranged all the Malayan Papilionidæ in what appears to me their most natural succession, and have exhibited their distribution in twenty-one columns of localities, extending from the Malay peninsula, on the north-west, to Woodlark Island, near New Guinea, on the south-east. The double line divides the Indo-Malayan from the Austro-Malayan region; and those islands which form natural zoological groups are connected by brackets. _Table showing the Distribution of the Malayan_ Papilionidæ. ┌───┬──┬───────────────────╥─────────────────────────────────────────────┐ │ │ │ ║ INDO-MALAYAN REGION. │ ├───┼──┼───────────────────╫────────┬────────┬────────┬─────╥────────────┤ │ │ │ =Ornithoptera.= ║Malacca.│Sumatra.│Borneo. │Java.║Philippines.│ │ │ │ ║ │ │ │ ║ │ ├───┼──┼───────────────────╫────────┬────────┬────────┬─────╥────────────┤ │ │a.│_Priamus_-group. ║ │ │ │ ║ │ │ 1│ │Priamus, _L._ ║ │ │ │ ║ │ │ 2│ │Poseidon, _Db._ ║ │ │ │ ║ │ │ 3│ │Crœsus, _Feld._ ║ │ │ │ ║ │ │ 4│ │Tithonus, _De ║ │ │ │ ║ │ │ │ │ Haan._ ║ │ │ │ ║ │ │ 5│ │Urvilliana, _Guér._║ │ │ │ ║ │ │ │ │ ║ │ │ │ ║ │ │ │b.│_Pompeus_-group. ║ │ │ │ ║ │ │ 6│ │Remus, _Cr._ ║ │ │ │ ║ │ │ 7│ │Helena, _L._ ║ │ │ │ ║ │ │ 8│ │Leda, _Wall._ ║ │ │ │ ║ │ │ 9│ │Pompeus, _Cr._ ║ 1│ 1│ 1│ 1║ │ │ 10│ │Nephereus, _G. R. ║ │ │ │ ║ 1│ │ │ │ G._ ║ │ │ │ ║ │ │ 11│ │Magellanus, _Feld._║ │ │ │ ║ 1│ │ 12│ │Criton, _Feld._ ║ │ │ │ ║ │ │ 13│ │Plato, _Wall._ ║ │ │ │ ║ │ │ 14│ │Haliphron, _Bd._ ║ │ │ │ ║ │ │ 15│ │Amphrisius, _Cr._ ║ 1│ │ 1│ 1║ │ │ │ │ ║ │ │ │ ║ │ │ │c.│_Brookeana_-group.