The taxonomic arrangement of Curetis HUBNER, [1819] , proposed by EVANS (1954), mainly on the basis of dry dissections of the male genitalia, is reviewed and slightly modified. Eighteen species are recognised compared with thirteen recognised by EVANS. The male genitalia of the principal taxa are figured, drawn freehand, using preparations in liquid. A list of the species and subspecies is included as an appendix.

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The status of the Sulawesi region species of the Nacaduba group of genera (sensu TITE, 1963) is revised in the light of new evidence from recent captures. A new species, Nacaduba angelae, is described. Changes are given to the ranges and status of other taxa.

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Dry matter budget of the larvae of Taraka hamada was studied, and food utilization efficiencies were compared between the groups reared under surplus and limited food conditions. The influence of food supply on the larval growth pattern under several food conditions was also studied. The larva of surplus food condition fed on aphids of 21-44 mg in dry weight during the 4th instar. The amount is equal to 6-13 small aphid colonies which are usually observed in the field. The larvae could pupate even under limited food condition, though they had been fed on a third of the surplus amount. The conversion efficiency of ingested foods to body substances of T. hamada (27.4-44.4%) was higher in comparison with those of phytophagous lepidopterans. Furthermore, T. hamada larvae utilized the food with higher efficiency when it was limited. Under food shortage, larvae tended to pupate when they reached the minimal weight for pupation. Delay of pupation was only one or two days even when they were reared on limited food.

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