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: ...

A new species of Neoantistea Gertsch, 1934 from Yintiaoling National Nature Reserve, Chongqing, China (Araneae, Hahniidae)

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A new species of Neoantistea Gertsch, 1934 from Yintiaoling National Nature Reserve, Chongqing, China (Araneae, Hahniidae

Background

Hahniidae is a family of spiders with 239 species belonging to 29 genera, of which 45 species belong to 9 genera was recorded in China.

New information

A new species of the genus Neoantistea Gertsch, 1934 is described from Yintiaoling Nature Reserve: N. yintiaoling sp. nov. (♂). Morphological descriptions, photos and illustrations of copulatory organs are provided. Photos of N. quelpartensis Paik, 1958 are also presented in order to compare it with new species.


Zheng C, Mu Y, Wang L (2025) A new species of Neoantistea Gertsch, 1934 from Yintiaoling National Nature Reserve, Chongqing, China (Araneae, Hahniidae). Biodiversity Data Journal 13: e155306. https://doi.org/10.3897/BDJ.13.e155306