SUBFAMILY HADENINAE
View Image Gallery of Subfamily Hadeninae

Dyrzela increnulata Warren 
Dyrzela increnulata Warren, 1913, Gross-Schmett. Erde, 11:176.
Dyrzela bosca Swinhoe sensu Holloway, 1976: 14 (partim).


Dyrzela increnulata


Diagnosis.
The forewings are browner than in the next two species, and the subapical costal patch is evenly dark brown throughout rather than paler anteriorly. The genitalia of all three species are very similar, with a very narrow valve, a single angular process from the costa, and a sclerotised, triangular 'corema'. The valve costal process in increnulata is much narrower than in bosca, spine-like rather than triangular.

Taxonomic notes. D. bosca is typically from Burma and resembles more closely the next species, with greyer forewings and a subapical costal patch that darkens towards the posterior. In bosca this is very narrow, and the fine fasciae are weak and more irregular.


Geographical range.
Burma, Peninsular Malaysia, Sumatra, Borneo.

Habitat preference.
The species ranges from the lowlands to 2000m and is usually found in forested areas. During the Mulu survey it was taken in lower and upper montane forest on G. Mulu, but also in large numbers at 250m in dipterocarp forest on the lower slopes of the limestone G. Api.

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