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Morphology and chorionic sculpture of eggs of two pest species Chilo infuscatellus Snellen and C. auricillia Dudgeon (Insecta: Lepidoptera: Crambidae)


Affiliations
1 Department of Life Sciences, RIMT University, Mandi Gobindgarh - 147303, Punjab, India
2 Zoological Survey of India, M-Block, New Alipore, Kolkata - 700053, West Bengal, India
3 Department of Zoology and Environmental Sciences, Punjabi University, Patiala - 147002, Punjab, India
 

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Two crambid species of subfamily crambinae i.e., Chilo infuscatellus Snellen and C. auricillia Dudgeon, commonly known as sugarcane shoot borer and stalk borer respectively, whose eggs were analyzed through Scanning Electron Microscopy (SEM) for studying their morphological features present on the egg chorion. This chorionic sculpture can be used by a taxonomist for precise identification of taxa along with other taxonomic characters. The egg surface shows structural elements such as micropylar rosette, ribs, cross-ribs, and aeropyles which differ significantly amid the higher taxonomic groups. In the species i.e., C. infuscatellus Snellen, the egg chorion has somewhat smooth with weak ornamentation in comparison to irregular reticulation present with both alternating and longitudinal ridges reaches the micropyle in C. auricillia Dudgeon

Keywords

Chorion, Egg, Morphology, Micropyle, SEM.
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  • Morphology and chorionic sculpture of eggs of two pest species Chilo infuscatellus Snellen and C. auricillia Dudgeon (Insecta: Lepidoptera: Crambidae)

Abstract Views: 269  |  PDF Views: 120

Authors

Deepinderpal Singh Deep
Department of Life Sciences, RIMT University, Mandi Gobindgarh - 147303, Punjab, India
P. C. Pathania
Zoological Survey of India, M-Block, New Alipore, Kolkata - 700053, West Bengal, India
H. S. Rose
Department of Zoology and Environmental Sciences, Punjabi University, Patiala - 147002, Punjab, India

Abstract


Two crambid species of subfamily crambinae i.e., Chilo infuscatellus Snellen and C. auricillia Dudgeon, commonly known as sugarcane shoot borer and stalk borer respectively, whose eggs were analyzed through Scanning Electron Microscopy (SEM) for studying their morphological features present on the egg chorion. This chorionic sculpture can be used by a taxonomist for precise identification of taxa along with other taxonomic characters. The egg surface shows structural elements such as micropylar rosette, ribs, cross-ribs, and aeropyles which differ significantly amid the higher taxonomic groups. In the species i.e., C. infuscatellus Snellen, the egg chorion has somewhat smooth with weak ornamentation in comparison to irregular reticulation present with both alternating and longitudinal ridges reaches the micropyle in C. auricillia Dudgeon

Keywords


Chorion, Egg, Morphology, Micropyle, SEM.

References





DOI: https://doi.org/10.26515/rzsi%2Fv118%2Fi4%2F2018%2F137281