View Image Gallery of Tribe Desmobathrini

This tribe consists of those genera recognised as a natural group by Holloway (1984b), with the addition of Celerena Walker (Holloway, 1993[4]), Derambila Walker and allied genera and Ozola Walker (= Desmobathra Meyrick), as discussed below.

The group is cosmopolitan and almost entirely tropical and subtropical. Included genera not represented in Borneo are:

New World: Dolerophyle Warren, Dolichoneura Warren, Entogonia Warren, Leptoctenopsis Warren, Ophiogramma Hübner, Pycnoneura Warren;

Africa: Antozola Herbulot, Apatadelpha Prout, Brachytrite Swinhoe, Panagropsis Warren, (see also Conolophia Warren below);

Australasia: Caledophia Holloway, Callipotnia Warren, Encryphia Turner, Physetostege Warren.

Diagnostic features are found particularly in the male abdomen, notably in the structure of the tegumen in which the characteristic loops thickening each side have migrated, looping ventrally below the articulation with the vinculum leaving a central, elongated column of thickening to support the uncus, with the lacuna within the lateral loops much reduced, or even absent as in some species of Ozola. This condition of the tegumen can be seen most clearly in Figs 40, 48, 50, 69 and 75. The vinculum is normal and coremata are absent.

The abdomen itself is usually very slender, elongated, with a pair of longitudinally elongated patches of setae on the third sternite. The elongation of these, when present, is another diagnostic feature (Figs 50, 51). In the group of genera recognised by Holloway (1984b) there is a recurrent feature on the eighth segment: a pair of curved, finely corrugate, sausage-shaped zones laterally (Fig 35). This is seen in Conolophia, Noreia Walker, Alex Walker and Foveabathra Gen. n. in the Bornean fauna. In several genera there are also complex structures at the junction of the third and fourth sternites: it is seen in three of the four genera just mentioned, Alex being the exception.

The male antennae are usually ciliate, sometimes narrowly bipectinate.

The female genitalia offer no tribal level characteristics. The ornamentation of the bursa shows great variety, e.g.: general (Noreia) or localised (Derambila) scobination; longitudinal rows of spines (Ozola; a crown-like central ring of broad spines (Conolophia, Callipotnia); a small, scobinate signum (Encryphia); a longitudinal scobinate band (Celerena); immaculate (Alex, with an appendix; Foveabathra).

The ansa of the tympanum is usually simple, tapering, thought to be the plesomorphic condition by Cook & Scoble (1992), sometimes with a slight lateral flange.

Seven genera of the group occur in Borneo.

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