Oviposition Patterns of Asian Phytophagous Ladybird Beetles(Coleoptera, Coccinellidae, Epilachninae).

Abstract

The oviposition patterns of seven "Epilachna ", one Afidenta and three "Henosepilachna" species from Indonesia and Japan were examined and compared with those of 10 Asian species of epilachnines previously documented. The 21 species were divided into two groups based on the patterns. The first group consisted of twelve "Henosepilachna" species and Afidenta misera, and the other one consisted of eight "Epilachna" species. The former group laid several to dozens of eggs in an erect position and in mass on the underside of host leaves. On the other hand, the oviposition pattern of the latter group was diverse. They laid eggs singly, or up to ten plus eggs together, on the leaf surface or in tendrils of host plants. Eggs were usually not erect, but flat on host leaves, or were attached to or inserted into tendrils. The possible relevance between the oviposition patterns and the abundance of epilachnine species in the field was briefly discussed.

Phylogeny of Epilachna, Henosepilachna, and Some Minor Genera of Phytophagous Ladybird Beetles (Coleoptera: Coccinellidae: Coccinellinae: Epilachnini), with an Analysis of Ancestral Biogeography and Host-Plant Utilization

“…The families of host plants of the respective species in Tables 1 and S1 were used as character states; we directly confirmed host-plant utilization in the field in the course of this study or in previous studies (Katakura, 1997;Fujiyama et al, 1998;Kobayashi et al, 2000;Katakura et al, 2001;Nakano et al, 2001), except for Epiverta chelonia, for which host-plant information was obtained from Pang and Mao (1979). The following beetle species are known to occur on more than one plant family: H. pustulosa, H. yasutomii, H. vigintioctomaculata, H. vigintioctopunctata (S form), and H. diekei; Katakura (1997) and Katakura et al (2001) provided detailed host-plant information for these species.…”

Field‐cage experiments on host fidelity in a pair of sympatric phytophagous ladybird beetles

“…Henosepilachna beetles lay eggs in masses on the underside of leaves of host plants (Nakano et al, 2001). Table 4 …”

“…Henosepilachna beetles lay eggs in masses on the underside of leaves of host plants (Nakano et al, 2001). Table 4 shows the cumulative number of egg masses found on each plant species studied in 2001 and 2002.…”