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Naoyuki Fujiyama, Naoyuki
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education

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EXTENT OF USE OF THE NOVEL FABACEOUS HOST CENTROSEMA MOLLE BY HENOSEPILACHNA VIGINTIOCTOPUNCTATA (COLEOPTERA: COCCINELLIDAE) IN NUSA TENGGARA, INDONESIA Fujiyama, Naoyuki; Ueno, Hideki; Kahono, Sih; Hartini, Sri; Matsubayashi, Kei W.; Kikuta, Shogo; Katakura, Haruo
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2033.478 KB) | DOI: 10.14203/treubia.v40i0.185

Abstract

The herbivorous ladybird beetle Henosepilachna vigintioctopunctata depends primarily on solanaceous plants. The utilisation of a novel fabaceous host, centro (Centrosema molle), by this beetle has been reported from several regions in Southeastern Asia, but details of the distribution and feeding habits of H. vigintioctopunctata populations on centro are largely unknown. Our study aimed to gather basic information on the utilisation of centro by H. vigintioctopunctata in the Nusa Tenggara region of southeastern Indonesia. Field surveys indicated that H. vigintioctopunctata did not yet utilize centro in the wild in this region. However, in feeding-choice experiments in the laboratory, all beetle populations tested from this region had some potential to utilize centro, i.e., showed some feeding acceptance of this plant. Based on these results, we discuss the current status of the Nusa Tenggara H. vigintioctopunctata populations in using centro as a host.
POTENTIAL ABILITY OF THE SOLANUM-FEEDING LADYBIRD BEETLE HENOSEPILACHNA DIFFINIS (COLEOPTERA; COCCINELLIDAE) TO USE THE INTRODUCED FABACEOUS PLANT CENTROSEMA MOLLE Kikuta, Shogo; Fujiyama, Naoyuki; Kahono, Sih; Kobayashi, Norio; Hartini, Sri; Katakura, Haruo
TREUBIA Vol 40 (2013): Vol. 40, December 2013
Publisher : Research Center for Biology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1783.521 KB) | DOI: 10.14203/treubia.v40i0.187

Abstract

Host specificity has been a major factor in generating the tremendous diversity of phytophagous arthropods. Studies of adaptation to introduced or invasive plant species provide an opportunity to investigate incipient evolutionary changes in host specificity. We investigated the cryptic ability of the Asian tropical herbivorous ladybird beetle Henosepilachna diffinis to feed on the fabaceous weed "centro", Centrosema molle, which was introduced to Southeast Asia about 200 years ago. In laboratory choice tests using this plant and the normal host plant, Solanum torvum, adults preferred S. torvum to centro, but over half the beetles tested ate leaves of both plants. Furthermore, most first-instar larvae accepted centro during a rearing experiment, and a few of them grew to the third-instar stage, though none reached the final (fourth) instar. Henosepilachna diffinis likely acquired this incomplete acceptability of centro without any direct host-grazer interaction with centro, probably before this weed was introduced to Southeast Asia. Our results further suggest that another Henosepilachna species, H. vigintioctopunctata, might similarly have already acquired an incomplete ability to use centro when this beetle encountered it for the first time, and this triggered a subsequent host-range expansion from solanaceous plants to include centro in various parts of Southeast Asia.
UJI PREFERENSI TUMBUHAN INANG BEBERAPA POPULASI KUMBANG LEMBING Epilaehna. aff. emarginata (COLEOPTERA; COCCINELLIDAE; EPILACHNINAE) Kahono, Sih; Pujiastuti, Liliek Endang; Fujiyama, Naoyuki; Nakano, Susumu
BERITA BIOLOGI Vol 6, No 3 (2002)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v6i3.1221

Abstract

Epilaehna sp. aff. emarginata had been considered as a specialist on Mikania micrantha (Compositae). However, recently its oceurrence on Leucas lavandulifolia (Labiatae) was reported. Preliminary field observations of some beetle populations showed that they had different on the host plant utilizations. However, the result was not sufficient to interpret the food preference of the beetles. These experiments weremade in order to clarify those previous observations.Experiments on adult food preference was investigated under uncontrolled room conditions.Four beetle populations (Bogor, Cibinong, Klaten and Malang) were subjected to choice tests offering Mikania micrantha (Compositae) and Leucas lavandulifolia. These experiments indicated that individual beetle has similar trend on food preference within each population. Bogor and Cibinong populations preferred to feed on both M. micrantha and L. lavandulifolia while. Klaten and Malang populations preferred exclusively on L. lavandulifolia. The populations showed different food preferences on the different geographical conditions of Java.
Co-Authors Haruo Katakura, Haruo Hideki Ueno, Hideki Kei W. Matsubayashi, Kei W. Nakano, Susumu Norio Kobayashi, Norio Pujiastuti, Liliek Endang Shogo Kikuta, Shogo Sih Kahono Sri Hartini