SEM Description and Life History Traits of Indian Biotype of Acanthoscelides macrophthalmus (Schaeffer) (Coleoptera: Bruchidae)

Research Article
SEM Description and Life History Traits of Indian Biotype of Acanthoscelides macrophthalmus (Schaeffer) (Coleoptera: Bruchidae)

International Journal of Zoological Research, 2015, 11(1), 19-28.

Abstract

Many insect pests have crossed over the geographical boundaries and became cosmopolitan in distribution through anthropogenic migration and import and export of the comestible consignments. Acanthoscelides macrophthalmus (Schaeffer) (Coleoptera: Chrysomelidae: Bruchidae) a recently reported well known pest of Leucaena leucocephala (Lamark) de Wit (Fabaceae) from Indian subcontinent has been studied for life history traits under laboratory conditions. Acanthoscelides macrophthalmus utilizes aphagously developing and developed seeds for oviposition and larval development. Eggs were laid either on the pod surface, over a seed, or directly on exposed seeds. Female laid an average of 38.3±8.01 eggs and produced 27.4±6.77 offsprings. Larvae grew and molted inside the host seed and adult bruchid emerged out after cutting a circular window in testa of the seed and pod as the case may be. Total development was completed in 41.6±7.18 days and newly emerged insects became sexually mature after one hour of emergence. All the four larval instars were studied Scanning Electron Microscopically (SEM) and head, antenna, clypeolabial complex, leg etc., were described separately and taxonomically important structure like setae, sensillae trichodea, microtrichia etc., beared by integumentry system were projected accordingly.

ASCI-ID: 46-238

Cited References Fulltext

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Antennal and mouthpart sensilla of Acanthoscelides obtectus say (Coleoptera: Bruchidae)

Microscopy Research and Technique, 2016, 79(12), 1230. DOI: 10.1002/jemt.22783