Article Abstract

Volume 31, No. (2), 2021 (April)
MORPHOTAXONOMY AND ALLOMETRY OF OESTRUS OVIS (LINNÉ, 1758)LARVAE (DIPTERA: OESTRIDAE: OESTRINAE)
1.1.1 M. Kamal1*, G. Yasmeen1, F. Naz2, N. U. Saher2, N. Ahmad3, W. Khan4 and G. J. Yousafzai5

1Department of Zoology, University of Karachi, Karachi-75270, Pakistan; 2Centre of Excellence in Marine Biology, University of Karachi, Karachi-75270, Pakistan; 3Aquatic Diagnostic Laboratories, Bahria University, Karachi-75260, Pakistan; 4Department of Zoology, University of Malakand KPK, Pakistan;

5Department of Zoology, Abdul Wali Khan University Mardan KPK, Pakistan.

Corresponding Author: mustafakamaluok@gmail.com
Page Number(s): 604-609
Published Online First: October 03, 2020
Publication Date: October 03, 2020
ABSTRACT

The larvae of Oestrus ovis Linné, 1758 are well-known parasites of goats and sheep. Larval instars of O. ovis are described based on specimens collected from nasal cavities, frontal sinuses and base of the horns of goats from Karachi, Pakistan. Three instars of larvae are described in detail, including body coloration, dorsal and ventral body spines and D- shaped spiracles. Colored illustrations of various larval instars along with typical characters have been given. We also give a key to the third instar larva with some modifications. The mean length (15.65±4.29), width (6.043 ±1.70) and weight (356.3±168.4) of O. ovis larvae were calculated. The one way ANOVA showed significant differences (P<0.05) in length, width and weight of three larval instars of O. ovis. Larvae growth relationship showed negative allometry between weight-length and weight-width, while length-width showed isometry.

Keywords: Oestrus ovis, Morphometric measurements, Taxonomy, Morphology, Karachi, Pakistan

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Journal Impact Factor: 0.5 | (JCR Year: 2025) | Cite Score: 1.3

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Print ISSN: 1018-7081

Electronic ISSN: 2309-8694

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