Chrysocraspeda deltalutea sp. n.
7, 8mm. The wings are speckled red on pale yellow, the red area bordered
by a narrow zone of more intense red. The distal margins are more clear yellow,
with a triangular indentation of this colour at the forewing tornus. From the
apex of this triangle a fine straight postmedial of more intense red traverses
the wing. A similar but more curved fascia crosses the centre of the hindwing.
The species resembles C. elaeophragma Prout (New Guinea) somewhat but
this lacks pale fringes and dorsal triangles though this is present in C.
aurimargo Warren (Queensland), and has a conspicuously lunulate white
hindwing discal mark, and an additional straight antemedial fascia on the
forewing. The male genitalia are distinguished by two spined structures on the
aedeagus additional to the apical tongue-like process. These are absent in elaeophragma,
and aurimargo has a small spined structure in the vesica.
Badas forest, 26.ii.1982 (T.W. Harman) BM geometrid slide 18321.
Paratype MALAYSIA: Sabah, Danum Valley, 170m, 4.58N, 117.48E (S.J. Willott) Primary
understorey ER East Ridge DVFC 25.x.94 (abdomen missing).
Geographical range. Borneo, Peninsular Malaysia (FRIM colln), Java,
Sulawesi (slide 18354). There is a similar but larger specimen from Burma
(East Pegu) in BMNH.
Habitat preference. Both specimens are from lowland forest, the holotype
from an area with swamp forest, the paratype from mixed dipterocarp forest.
to Contents page