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Cacyparis Walker
Type
species: insolitata
Walker, India.
The facies of this genus is distinctive, the forewings distally rounded, with a
distinctive subapical ocellar mark amid a pattern of yellow, grey or brown that
includes some iridescent, silvery elements. The forewing has an ovate patch of
raised scales on and protruding from the centre of the dorsum in both sexes. The
forewing venation has a small areole but is otherwise as in the groundplan, as
is that of the hindwing, with Rs and M1, and M3 and CuA1 connate. The genus,
with the next, is distinguished from other nolids by the labial palps, where the
apical segment is very much longer (rather than mostly distinctly shorter) than
the second and very much narrower. Only in some Ariolicini, such as
Plagiograpta,
Labanda,
Paracrama
and Titulcia,
and Hylophilodes
in the Chloephorini is this segment equal to or longer than the second. Several
genera of the Collomeninae also have the terminal segment long and
slender, but it never significantly exceeds the second segment in length.
The male abdomen lacks tymbal structures on the basal sternite, though this
segment is elongated (Fig 583), and there are modifications in the type species
to the margins of many of the basal sclerites. The eighth segment is also
modified, the sternite into a slender triangle with concave sides and the
tergite into a small, splayed ‘U’. The tymbal function appears to have migrated
to the robust saccus of the genitalia where carinae in compartments on each side
are associated with an ovate thickening in the vinculum. The valves are rhomboid
or falcate-triangular with a small central flap, the junction on each side of
tegumen and vinculum is large and complex. The saccular shield is broad,
upturned. The aedeagus is very slender with a long slender cornutus.
The female has segments 8 to 10 and the sterigma somewhat fused together as
illustrated. The ductus is variable in length and the bursa flimsy, without a
signum.
Apart from the Indian Subregion type species and that described below, the main
diversity (seven species) of the genus ranges from the Moluccas to the Solomons
and Queensland.
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