Gray Wall Jumper

Menemerus bivittatus

True spiderbeginnerVenom: Mild

About

A flat, gray, cosmopolitan jumper usually seen hunting on sunlit walls and fences. Keep one to a small vertical enclosure (4x4x4 in or larger) with lots of climbing surfaces and a hide, at 70-79°F and a moderate 50-60% humidity with a light mist once or twice a week — keep it on the drier side, as it dislikes stagnant damp. Feeds on fruit flies, houseflies, and small crickets 2-3 times a week. Bold and low-maintenance; harmless, mild venom. Solitary.

Taxonomy

FamilySalticidae

GenusMenemerus

Native regionPantropical; common on walls in warm regions and the southern USA

TypeArboreal

Temperamentbold, active wall-hunter; curious; harmless

Size & growth

Adult size~9 mm body

Length7.00–10.00 mm

Growth ratefast

Climate

Temperature70–82 °F

Humidity50–60%

Enclosure

Adult size4x4x8 inches (vertical)

Substratecoco fiber; vertical decor for climbing + silk retreats; light mist for drinking

Substrate depth1-2 inches

Water dishOptional

Feeding

Feeding modePredator (live prey)

Prey sizeflies, fruit flies, small crickets

Adult cadence2-3 prey per week

Times kept: 0