Arctornis rhopica Toxopeus
1948, Treubia, 19: 462.
Mackey, 1984: 6.
Diagnosis. When fresh, this species could be confused with A. poecilonipha (See A. poecilonipha
Collenette comb.n), particularly the larger female, but the irregularities in the satiny
white forewings are finer, the black discal spot smaller, and the grey at the
distal margins of the wings is more uniform in width, also on the underside.
Frons, palps and extensive areas of the foretibia are rufous brown, although
tending in the first and second to grade paler ventrally. The male genitalia are
distinctive, with a large recurved spine at the base of the sacculus as well as
the harpe, a triangular process at the base of the valve costa, and, also on the
valve, a subapical interior flap. The uncus is strongly setose.
Geographical range. Borneo, Sumatra (Schintlmeister, MS).
Habitat preference. The species has been taken infrequently in a range of
lowland forest types and also in lower montane forest (1000m on G. Mulu).
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