9-10mm. The pale yellow ground colour is almost entirely shaded with
finely mottled red, leaving clear yellow areas centrally on both wings
much as in males of C. conversata, except more strongly defined,
that on the forewing transverse, resembling a duck's head with a red eye,
beak directed distally. On the hindwing the central markings extend
towards a longitudinal yellow bar at the margin. The male genitalia
suggest the closest relationship is with C. ozophanes, with the
rather quadrate uncus and downturned, rather spatulate processes in the
valves. The latter are more acute, less asymmetric.
Holotype . SARAWAK: Gunung Mulu Nat. Park, R.G.S. Exped. 1977-8 (J.D. Holloway
et al.) Site 23, April, W. Melinau Gorge, 250m. 430558,FEG 4
limestone forest, BM geometrid slide 18308.
Paratypes: l BRUNEI: 300m, Ulu Temburong, rainforest 27 Apr 1981; (Lt. Col.
M.G.
Allen); 1 SABAH: 945m, Gunung Monkobo, 116.56E, 5.48S,
dipterocarp forest, 14-23 .vii. 1987 (K.R. Tuck).
The species is named in memory of Nicholas John, dramaturge of the
English National Opera and friend of the author.
Geographical range. Borneo.
Habitat preference. All specimens are from lowland dipterocarp forest.
9-10mm. The pale yellow ground colour is almost entirely shaded with
finely mottled red, leaving clear yellow areas centrally on both wings
much as in males of C. conversata, except more strongly defined,
that on the forewing transverse, resembling a duck's head with a red eye,
beak directed distally. On the hindwing the central markings extend
towards a longitudinal yellow bar at the margin. The male genitalia
suggest the closest relationship is with C. ozophanes, with the
rather quadrate uncus and downturned, rather spatulate processes in the
valves. The latter are more acute, less asymmetric.