MICROLEPIDOPTERA OF NEW GUINEA 
179 
numerous species in the Indian and Malayan regions, and with a wide 
vertical distribution; this is the second species from New Guinea. 
Isochorista papuana and I. polyspmna would be more interesting if a 
third species were not collected at the Moss Forest Camp. The genus is 
typically Australian ; the present is the first record from the Papuan region. 
The following three new species were collected also in other camps. 
Schoenotenes metagrapha, also from Rattan and Mist Camps. 
Paralecta hexagona, also from Araucaria and Rattan Camps. 
Cryptophasa cklorotis, also from Rattan Camp. 
The following five species are endemic to the Papuan fauna. 
Zacorisca thiasodes from Netherlands New Guinea (Fakfak) and British 
New Guinea (Owgarra). This is actually a lowland species. 
Zacorisca toxopei, also from the Cyclops Mountains, Hollandia, and the 
Araucaria Camp ; previously recorded from Fakfak and Owgarra. This is 
another species occurring also at the coast, but apparently with a wider 
vertical distribution than thiasodes. 
Chionothremma patarea, also from Owgarra and the Wissel Lakes. 
Chionothremma melanoleuca is a species of interest as it has also been 
recorded from the Wissel Lakes (Lake Paniai, 1750 meters) and suggests 
a similarity of these faunas. 
The following two are possibly migrants from far away: 
Steganodadyla bilrgersi, from North Central New Guinea. 
Adoxophyes vindicata, described from the Solomon Islands, but collected 
by the Expedition in four other camps. 
Epicurica spec, (damaged and unrecognisable) ; belongs to an Australian 
genus; the genus has four other species collected by the Expedition 
elsewhere. 
It is evident from this brief review that the material of Microlepi- 
doptera available from the Grand Valley is too limited to allow any 
resolute statements as to the problem of the origin of its fauna. Still it is 
noteworthy that, among the 17 species collected, there are two that rather 
belong to the lowland fauna ( Zacorisca thiasodes and toxopei). 
Alpine fauna 
Several entomologists when studying then - special groups from the 
collection of the Expedition looked in vain for true alpine elements which 
could be expected to occur in the three highest collecting localities at the 
foot of Mount Wilhelmina, ranging from about 3250 to 4200 meters. 
Lieftinck (1941, 1949) in his study on the Odonata of the Expedition 
records five species from this region, all of them endemic, viz., one species 
of Hemicordulia (Anisoptera), one of Ischnura and three species belonging 
to the endemic genus Oreagrion of which one more species has been collected 
by the Lorentz Expedition of 1 909 (in the same region, but at a lower 
elevation). All species of Zygoptera in question are of a similar facies, 
