1961 ] Darlington — Australian Carabid Beetles 13 
Of non-pterostichines, Pamborus is noteworthy. It is confined to 
eastern Australia and is one of the two known genera of the tribe 
Pamborini. (The other is monotypic Maoripamborus in New Zea- 
land — Brookes 1944.) The northern limit of Pamborus is probably 
near Cooktown. Four species of the genus occur in the main tropical 
rain forest system of North Queensland, chiefly or wholly in rain 
forest. Six other species occur in South Queensland and New South 
Wales. Some of them occur mainly in (sub) tropical rain forest, but 
viridis inhabits savannah woodland and some other species occur in 
open woods as well as rain forest, and some enter south temperate 
rain forest on the high plateaus of north-central New South Wales. 
The southern limit of the genus is near the Shoalhaven River about 70 
miles south of Sydney. (Old records for Victoria are probably errors.) 
The genus Mystropomus is the only Australian representative of the 
pantropical tribe Ozaenini. The genus is confined to eastern Australia. 
Its northern limit is between Daintree and Cooktown. A single species 
(two subspecies) occurs throughout the main tropical rain forest sys- 
tem of North Queensland, and is apparently confined to rain forest. 
Another, variable species (two subspecies) occurs in the subtropical 
rain forest system, and extends into more open woodland. The south- 
ern limit of the genus is apparently near Sydney. 
These five genera dominate the flightless geophile carabid faunas 
of the main tropical and subtropical rain forest systems of eastern 
Australia. Their distribution is notable in several ways. All five 
genera reach an approximately common northern limit, north of Dain- 
tree and south of or near Cooktown. All five genera are widely dis- 
tributed both in the main tropical and in the subtropical rain forest 
systems. These two forest systems are separated by a wide barrier of 
comparatively dry, open forest in which is one important “island” of 
rain forest, on the Eungella Range west of Mackay, and all five of 
the genera in question are represented there. 4 In the tropics, these 
genera occur only or chiefly in rain forest, 5 although most of them 
enter opener forest too in the south temperate zone. 
4 Of the 5 genera in question on the Eungella Range, the one Pamborus has 
close relatives in both North and South Queensland. The one Mystropomus is 
a South Queensland species. Of 2 Trichosternus, one probably belongs to a 
South Queensland group and the other is doubtful. The one Notonomus be- 
longs to a North Queensland group. And the one Leiradira belongs to a 
South Queensland subgenus. These genera in the Eungella rain forest there- 
fore show 2 close ties with North Queensland (in Pamborus and Notonomus) 
and 4 with South Queensland. 
5 Trichosternus cordatus Chd. occurs outside rain forest in the southern 
edge of the tropics. 
