Fauvel is represented by a single species from Europe. We cannot place it in
the key on the basis of existing descriptions.
Cameron was described on the basis of a single species from Singapore. It
cannot be placed in the key from the original description.
Keissenwetter. This genus was formerly called Antarctophytosus. Six species have been described, all
confined to the sub Antarctic islands. According to Steel (1964) 'Halmaeusa
occurs in a variety of habitats, in litter, amongst vegetation, under stones,
etc., and only occasionally on the shore'.
Fauvel. The single species, C. polyporum
Fauvel, was described from Aru. It is
2 mm in length and reddish brown in color. Fauvel stated that the woolly
pubescence is remarkable in that it does not exist in this degree on other
Curtis. Twelve species have been described from Europe, North and West Africa
and New Jersey. Some of the European species are not rare but the single
American species has been found only once. These are small linear
black-to-orange insects which are largely submarine in habits. The anterior
and middle tibiae are armed with spines.
Casey. Only two species of this genus are known. Both are found on the sandy
beaches of Pacific North America. In California T. maritima Casey can be found in numbers at night on
certain beaches on the wet sand during an outgoing tide in company with Thinopinus pictus
LeConte and Pontamalota opaca
LeConte. It is found rarely in seaweed. It is a tiny linear insect largely
black with the abdominal apex paler. Its range extends to Washington. T..f1etcheri Casey is a little larger than
T. maritima. It is reported
from British Columbia to Alaska. The
tibiae bear spines on the outer edge. The genus was revised by Moore (1956a).
Mäklin. Members of this genus live in rock crevices on rocky
headlands subjected to heavy surf. L.
cordicollis LeConte is known from Monterey, California to
Alaska where it is usually found in company with Diaulota densissima Casey. L. brevipennis Miiklin is from Alaska and L. tokunagi Sakaguti