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Maguda Walker
Type
species: immundalis Walker,
Borneo.
The
genus consists of small dark brown boletobiine-like species with narrow
forewings and characteristically close antemedial and postmedial fasciae on all
wings. These therefore can appear as a double fascia medially, particularly on
the hindwing. The male antennae are ciliate. The third segment of the forwardly
directed labial palps is approximately half the length of the second, apically
acute.
The
genus, as currently constituted (Poole, 1989), has several Oriental species, one
in New Guinea and (Nielsen et al., 1996) an undescribed one in Australia.
The male
abdomen has the eighth segment more complex than in more typical boletobiines,
the sternite having a pair of small coremata in a partial semicircular or
rectangular frame anteriorly, that then angles out laterally beyond a small
interior lobe to support a further pair of hair pencils. The tergite is similar
to that of other boletobiines but more rudimentary in several species. The
genitalia have the distal part of the valve flimsy, corematous, but with a
complex array of more basal processes.
The
female of the type species has the ostium set well within the eighth segment,
flanked by a pair of scobinate patches that are slightly pouched. The ductus and
bursa are similar to those in Corsa.
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