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Brown Widow

Latrodectus geometricus

LatrodectusTheridiidae

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Overview

A tan, mottled widow with a striking orange hourglass — a hardy, low-maintenance cobweb-builder, but one for experienced, cautious keepers only. Its venom is the same type as the black widow's (latrodectism) and is medically significant, so it requires escape-proof housing and absolutely no handling; in practice brown widow bites tend to be milder and more localized than black widow bites because far less venom is delivered, but it must still be treated with full respect. Give a tall enclosure with anchor points for its irregular web, room temperature, occasional misting for water, and crickets or flies. Shy and reluctant to bite. Solitary.

Husbandry Requirements

Temperature & Humidity

Temperature

70-85°F

Humidity

50-65%

Enclosure Sizes

Adult:8x8x10 in or 32oz, vertical web anchors

Substrate

Type:anchor points (sticks, cork, mesh) for an irregular cobweb; substrate optional
Depth:1-2 inches (web spider; rarely on the ground)

Feeding Schedule

Adult:2-3 prey per week

Prey size: flying insects, crickets

Quick Stats

Type

cobweb (web)

Adult Size

female 7-10 mm, male ~4 mm

Growth Rate

fast

Native Region

Cosmopolitan in warm regions; widespread in the southern USA

Temperament

shy, reclusive; venom is MEDICALLY SIGNIFICANT — no handling

Behavior

Webbingirregular tangle (cobweb)
BurrowingNo
Water DishOptional

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