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New insights into Damarchus: a new species and gynandromorph description from Thailand (Araneae: Bemmeridae)

2025/09/25 by Chawakorn Kunsete, Chawatat Thanoosing, Varat Sivayyapram +2 · 1 voice
Biochemistry, Genetics and Molecular Biology · #Spider Taxonomy and Behavior Studies #Lepidoptera: Biology and Taxonomy #Genetic diversity and population structure

paper · doi:10.11646/zootaxa.5696.3.6

openalex publication_date 2025/09/25 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

The genus Damarchus Thorell, 1891, represents a relatively neglected group of mygalomorph spiders distributed across several Asian countries, including India, Indonesia, Malaysia, Myanmar, Singapore, and Thailand. This study describes a new species, Damarchus inazuma sp. nov., discovered in Thailand. The male D. inazuma is identified by the presence of three diminutive spines on the tibial apophysis, whereas the female is characterized by an elongated spermathecal stalk that exhibits an inward curvature. Additionally, we report the identification of a gynandromorph specimen of D. inazuma, marking the first recorded instance of this condition within the family Bemmeridae.

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