Dataset Information

Harmonia manillana (Mulsant), a new addition to Indian Coccinellidae, with changes in synonymy.

ABSTRACT:

Background

Harmonia dunlopi (Crotch), a rare lady beetle species, was originally described from 'India' by Crotch (1874). But information on subsequent sightings of this species is absent and it has not been reported by anyone from India and its neighbouring countries ever since its original description. Because of this, Indian records of H. dunlopi were suspected to be probably misidentifications of H. dimidiata (F.), a species common in northern and northeastern India and also widely distributed in the Oriental region.

New information

A single male specimen of a species collected in recent surveys from Arunachal Pradesh, India, was suspected to be H. dunlopi. Comparison of this specimen with the collections at the Natural History Museum, London, confirmed that it belonged to Harmonia manillana (Mulsant), hitherto known from Malaysia, Indonesia and the Philippines. Harmonia manillana is a highly polymorphic species with many synonyms and based on examination of the type material, the following nomenclatural changes are proposed. Harmonia dunlopi was found to be only a color variant of H. manillana and hence it is reduced to a junior synonym of H. manillana (syn. nov.). Harmonia decussata (Crotch 1874) is removed from synonymy with H. manillana and reinstated as a valid species (stat. rev.) and H. flavomarginata Bielawski 1968 is a new junior synonym of H. decussata (syn. nov.). This is the first record of H. manillana for India and South Asia. The male genitalia of H. manillana are illustrated and compared with those of H. dimidiata, the more common Indian species, to facilitate its recognition.

SUBMITTER: Poorani J

PROVIDER: S-EPMC4822061 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

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Publications

Harmonia manillana (Mulsant), a new addition to Indian Coccinellidae, with changes in synonymy.

Poorani J J Booth Roger G RG

Biodiversity data journal 20160325 4

<h4>Background</h4>Harmonia dunlopi (Crotch), a rare lady beetle species, was originally described from 'India' by Crotch (1874). But information on subsequent sightings of this species is absent and it has not been reported by anyone from India and its neighbouring countries ever since its original description. Because of this, Indian records of H. dunlopi were suspected to be probably misidentifications of H. dimidiata (F.), a species common in northern and northeastern India and also widely d ...[more]

PMID: 27099561

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Project description:Harmonia axyridis is an important natural enemy that consumes many agricultural and forestry pests. It relies on a sensitive olfactory system to find prey and mates. Odorant-binding proteins (OBPs) as the first-step of recognizing volatiles, transport odors through sensillum lymph to odorant receptors (ORs). However, little is known about the molecular mechanisms of H. axyridis olfaction. In this study, four H. axyridis antenna specific OBP genes, HaxyOBP3, 5, 12, and 15, were bacterially expressed and the binding features of the four recombinant proteins to 40 substances were investigated using fluorescence competitive binding assays. Three-dimensional structure modeling and molecular docking analysis predicted the binding sites between HaxyOBPs and candidate volatiles. Developmental expression analyses showed that the four HaxyOBP genes displayed a variety of expression patterns at different development stages. The expression levels of HaxyOBP3 and HaxyOBP15 were higher in the adult stage than in the other developmental stages, and HaxyOBP15 was significantly transcriptionally enriched in adult stage. Ligand-binding analysis demonstrated that HaxyOBP3 and HaxyOBP12 only combined with two compounds, β-ionone and p-anisaldehyde. HaxyOBP5 protein displayed binding affinities with methyl salicylate, β-ionone, and p-anisaldehyde (Ki = 18.15, 11.71, and 13.45 μM). HaxyOBP15 protein had a broad binding profile with (E)-β-farnesene, β-ionone, α-ionone, geranyl acetate, nonyl aldehyde, dihydro-β-ionone, and linalyl acetate (Ki = 4.33-31.01 μM), and hydrophobic interactions played a key role in the binding of HaxyOBP15 to these substances according to molecular docking. Taken together, HaxyOBP15 exhibited a broader ligand-binding spectrum and a higher expression in adult stage than HaxyOBP3, 5, and 12, indicating HaxyOBP15 may play a greater role in binding volatiles than other three HaxyOBPs. The results will increase our understanding of the molecular mechanism of H. axyridis olfaction and may also result in new management strategies (attractants/repellents) that increase the biological control efficacy of H. axyridis.

Dataset Information

Harmonia manillana (Mulsant), a new addition to Indian Coccinellidae, with changes in synonymy.

Background

New information

Publications

Harmonia manillana (Mulsant), a new addition to Indian Coccinellidae, with changes in synonymy.

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