small ones have white/yellow markings on the belly, larger ones have red/orange color mark.
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Los Angeles,
Certainly Latrodectus Geometricus, Brown Widow
Hi, welcome to Spider ID. 🙂 I agree, this looks like Latrodectuc geometricus (Brown Widow).
Hi, thanks Disco and ItsyBitsy, for helping out, is it possible that black widow and brown widow share a common habitat/ territory ? , originally i saw a black spider with red markings on its belly, it was few months back , since than i find brown ones like in the pic, they come out at night only.
Hey Siddharthmewada, they do share some territory. Specifically Latrodectus geometricus and Latrodectus erythromelas in India. That isn’t to say they love to live in the same webs, but their territories do overlap.
any inputs on … how serious is Latrodectus Geometricus, Brown Widow’s bite ? to elderly and kids ? diabetic people ?
The bites are very serious; medically significant. If you are bitten please seek treatment immediately.
The bite of the Brown Widow spider (Latrodectus geometricus) is regarded as significantly less toxic to people than that of other species in the genus (Black Widows). Everyone’s immune system is different though. People with compromised immune systems would of course be more susceptible to a negative reaction.
https://www.ncbi.nlm.nih.gov/pubmed/8211456?dopt=Abstract
Some of the info regarding the venom of L. geometricus is rather contradictory.
in any condition, i am not keen on keeping them around, till now we have not crossed each other’s path, but how do i get rid of them for sure, how do i do deep clean ? should i spray them with insect killer very night when i see them ?, i need to find their source ?, do they have a designated home kind of thing ? each spider is on its own ? last night i saw 4 big ones, about 2 inch in size.