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Achaearanea tepidariorum

Common House Spider

Family Theridiidae

Achaearanea tepidariorum female with egg sac and emergent spiderlings

Female with egg sac & emergent spiderlings

Achaearenea tepidariorum is common cosmopolitan species frequently found in buildings as well as many other places, including trees, road cuts and cliffs.

It is a baby pea-sized spider that routinely take prey much larger than itself, sometimes hundreds of times larger. These include large caterpillars as well as powerful and potentially dangerous prey like Jerusalem crickets.

Part of this skill comes from adept use of silk but much is due to a potent venom.

 
 

 

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