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Garella
Walker
Type
species: rotundipennis
Walker, Borneo.
Synonyms: Corticata
Walker (type species
scoparioides
Walker, Borneo) syn. n.;
Dendrothripa
Hampson (type species
rufipuncta
Hampson, India); Hypothripa
Hampson (type species
curiosa
Swinhoe, Burma) syn. n.;
Paraxia
Möschler (type species
chamaeleon
Möschler = nilotica
Rogenhofer, Puerto Rico) syn. n.
Garella species are very similar to those of typical Characoma in
facies and venation; the hindwing is trifine. They are distinguished by several
features of the male and female genitalia.
The male abdomen has a tymbal organ in the type species and allies, but
not always. The genitalia have the uncus slender, but apically bilobed, and
usually flanked on the scaphium by unusual pads of setal bases (the setae are
easily detached; this feature is absent from the widespread G. nilotica
Rogenhofer comb. n. and the Australasian
G. vallata
Meyrick comb. n.). The tegumen, when ventrally expanded at the junction
with the vinculum (not in
G.
scoparioides
Walker comb. n.), supports a hair pencil at that point. The black-scaled
process of the valve is short and globular rather than blade-like.
The female genitalia have acute ovipositor lobes as in the Characoma
complex, but differ from it in having a distinct signum or signa in the bursa
rather than general spining.
The extent of the genus needs further study, particularly outside the
Indo-Australian tropics, but probably most Indo-Australian species are
identified in this account.
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