Manoj Ramakant Borkar^1,, Mohini Seth¹

This research addresses gaps in information on the occurrence, distribution, ecology and in situ behaviour of Indian Violet (Chilobrachys fimbriatus Pocock, 1899) and Lesser Goa Mustard or Karwar Large Burrowing spider (Thrigmopoeus truculentus Pocock, 1899) in the precincts of Western Ghats in the Indian state of Goa. Populations of these two theraphosid spiders were studied during the monsoon and winter seasons through 2018-19. Besides a comparative data on gross morphology and morphometry; observations were recorded on the habitat and microhabitat characteristics, distribution, density and construct of burrows across two seasons; and in situ behaviour of both the species. An interesting aspect of this study is the comparative fine morphology of spider silk; and assessment of the regional conservation threats of the two species, of which T. truculentus falls under ‘Near Threatened’ IUCN category, while Chilobrachys fimbriatus is considered to be a ‘Least Concern’ species.

theraphosidae, ecology, behavior, fine structure, pet trade, conservation, thrigmopoeus truculentus, chilobrachys fimbriatus, SEM