Distinct pathophysiological mechanisms of Heterometrus laoticus and Lychas mucronatus scorpion venoms on cardiovascular and renal functions

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  Distinct pathophysiological mechanisms of Heterometrus laoticus and Lychas mucronatus scorpion venoms on cardiovascular and renal functions Abstract Background:    Heterometrus laoticus and Lychas mucronatus are widely distributed in Southeast Asia, yet their pathophysiological effects of both venoms remain poorly characterized due to low human fatality rates. This study compared their venom compositions and acute cardiovascular and renal effects. Methods:   Anesthetized male New Zealand White rabbits were monitored for blood pressure (BP), heart rate (HR), and renal clearance following intravenous administration of crude venom (0.5 mg/kg). Venom components were identified via LC-MS/MS, and hematological/biochemical parameters were assessed. Results:    H. laoticus venom induced a rapid, transient hypotension ( p < 0.05), followed by a mild, prolonged hypotensive phase (up to 120 min). Conversely, L. mucronatus venom elicited a biphasic response: ...

First Record of the Orb-Web Spider Species Argiope sector (Forsskål, 1776) (Araneae: Araneidae) from India

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First Record of the Orb-Web Spider Species Argiope sector (Forsskål, 1776) (Araneae: Araneidae) from India

Abstract

The species Argiope sector (Forsskål, 1776) is reported for the first time from India. A brief morphological description and photographic illustrations of the female habitus and copulatory organs are provided, along with a map of its current distribution.

Subhash I. Parmar, Dhruv A. Prajapati, Pranav J. Pandya "First Record of the Orb-Web Spider Species Argiope sector (Forsskål, 1776) (Araneae: Araneidae) from India," Entomological News, 133(2), 120-124, (15 March 2026) https://doi.org/10.3157/021.133.0203