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Berta
zygophyxia Prout
Berta chrysolineata zygophyxia Prout,
1912, Genera Insectorum 124: 234.
Berta
zygophyxia 
(lectotype,
Singapore) |
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Diagnosis. B. zygophyxia
has similar facies to copiosa but is perhaps a greyer green
with the white patches less crisply defined. A male from Penang (slide 17309) is
tentatively associated with zygophyxia, where the female is distinguished
by a prominent pouch containing the ostium, which is shorter, broader,
unsclerotised in comparison with hemisponsa and copiosa. This male
has both sternite and tergite on the eighth segment modified with shallow,
sclerotised processes; the valve lacks a process distal to the groove.
Taxonomic notes. B.
zygophyxia was originally described as a subspecies of chrysolineata and
based on two females from Singapore and two males from Bali. Prout later (1934, Gross-Schmett.
Erde 12: 127) appeared to relate the concept of zygophyxia more
strongly to the Singapore material, hence the female identified by slide 17322
is hereby designated LECTOTYPE. The Bali males (slide 17313) proved to be copiosa.
Geographical range. Peninsular Malaysia, Singapore, Borneo.
Habitat preference. A single female was taken at 1000m in lower montane forest on G.
Mulu.
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