Menemerus bivittatus
(Gray Wall Jumper)

Featured spider picture The spider species Menemerus bivittatus, commonly known as Gray Wall Jumper, belongs to the genus Menemerus, in the family Salticidae. Menemerus bivittatus spiders have been sighted 9 times by contributing members. Based on collected data, the geographic range for Menemerus bivittatus includes 4 countries and 3 states in the United States. Menemerus bivittatus is most often sighted outdoors, and during the month of June.

Taxonomic Hierarchy

Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Araneae
Suborder: Araneomorphae
Family: Salticidae
Genus: Menemerus
Species: Menemerus bivittatus

Common Name (AAS)

Gray Wall Jumper

Other Common Names

Gray Wall Jumping Spider

Author

Léon Jean Marie Dufour, 1831

Primary Colors

Sightings Overview

There have been 9 confirmed sightings of Menemerus bivittatus (Gray Wall Jumper), with the most recent sighting submitted on June 4, 2019 by Spider ID member morrison. The detailed statistics below may not utilize the complete dataset of 9 sightings because of certain Menemerus bivittatus sightings reporting incomplete data.

Web: 0% of the time, Menemerus bivittatus spiders are sighted in a spider web (Sample size: 9)
Sex: 1 female and 0 male.
Environment: Menemerus bivittatus has been sighted 9 times outdoors, and 2 times indoors.
Outdoors: Man-made structure (7). Ground layer (2).

Location and Range

Menemerus bivittatus (Gray Wall Jumper) has been sighted in the following countries: Brazil, India, Malaysia, United States.

Menemerus bivittatus has also been sighted in the following states: California, Florida, Texas.

Seasonality

Menemerus bivittatus has been primarily sighted during the month of June.

January:
February: 1
March: 2
April:
May: 1
June: 3
July:
August:
September:
October: 2
November:
December:

Additional Remarks

In adult males, the front pair of legs have more black and are thicker/heavier than the rest.
Females and juveniles may be mistaken for a member of the genus Platycryptus because of the similar coloration and habitat. Adult males may be mistaken for Plexippus paykulli, but the stripes are different.
Researchers have seen this species taking down moths that were easily twice the spider’s weight (Robinson & Valerio 1977). The spider may hold the moth in its jaws and drop down on a drag line while it waits for it to become subdued by the venom.
Egg sac is lens-shaped and houses 25-40 eggs. The sac is placed inside a silken retreat where the female spider guards it.