Notes on Some Biological Aspects of Arctornis riguata Snellen (Lepidoptera: Lymantriidae)

Notes on Some Biological Aspects of Arctornis riguata Snellen (Lepidoptera: Lymantriidae)
Sutrisno, Hari; Suputa, Suputa; Purnomo, Hari; Polandono, Siswo; Waluyo, Cipto; Ubaidillah, Rosichon; Darmawan, Darmawan; Ismail, Ismail; Hidayat, Iman; Widyastuti, Nunuk
Arctornis riguata Snellen is one of lymantriids which attacked a vast range of mango trees in Probolinggo at
the beginning of 2011. About 1.2% mango trees from nine sub-districts have been defoliated by the larvae of this
species. The larvae of this genus have been reported to forage at Anacardiacea as well; however, they have never
been reported to forage at cultivated mango trees in Indonesia. Since there is no biological information of this
species, thus, a study on some biological aspects of this species is needed. This study was conducted in the field
as well as in the laboratory during 4 months (March-July 2011). The diagnostic characters of this species are
black scale at dorsal antenna on both male and female and slightly setae particularly at the costal angle of valve
on the male genitalia. Life span of this species is in the range of 30-37 days. This study also found four natural
enemies of A. riguata i.e.: Bleparipa sp. (Diptera: Tachinidae), Euagathis sp. (Hymenoptera: Brachonidae), Theronia
sp. (Hymenoptera: Ichneumonidae), and Brachymeria lasus (Hymenoptera: Chalcididae). Moreover, a single
fungal pathogen of this species also was identified, i.e. Isaria fumosorosea Wize. Having these results, we considered
that to control A. riguata, one need to conserve the native natural enemies by manipulating their environment.
HAYATI Journal of Biosciences March 2013
Vol. 20 No. 1, p 47-50

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