Geolycosa patellonigra

Wallace, 1942

Geolycosa patellonigra is a burrowing wolf in the Lycosidae, described by Wallace in 1942. It is found in the United States, with records from Florida and potentially other southeastern states. As a member of the Geolycosa, it constructs deep -lined burrows in sandy soils and exhibits notable ballooning —spiderling aerial via silk threads—at frequencies higher than typical for wolf spiders. The species shows geographical variation in its seasonal distribution patterns.

Pronunciation

How to pronounce Geolycosa patellonigra: //d͡ʒiːoʊlaɪˈkoʊsə ˌpætɛloʊˈniːɡrə//

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Identification

Geolycosa patellonigra belongs to a distinguished from other wolf by a that is much higher at the than the rear. Like other Geolycosa , it constructs conspicuous vertical burrows with -lined shafts and debris-ringed turrets. The species name 'patellonigra' (black kneecap) likely refers to a distinctive dark marking on the of the legs. Accurate identification to species level requires examination of detailed morphological characters; the genus can be recognized in the field by burrow structure and the elevated cephalothorax.

Habitat

Sandy soils in open areas with sparse litter. The occupies stable , which is notable given its high ballooning frequency. Burrows are constructed in sandy substrates with turrets incorporating surrounding debris.

Distribution

United States; specifically recorded from Florida and potentially other southeastern states.

Seasonality

Seasonal distribution varies geographically; specific activity periods differ across its range.

Life Cycle

Spiderlings disperse via ballooning at high frequencies. Mature individuals construct burrows that may exceed one meter in depth for , with summer burrows averaging 20–25 centimeters. Vertical shafts are -lined and enlarged as the grows.

Behavior

Ballooning (aerial via threads) occurs at high frequencies in spiderlings, higher than reported for other Lycosidae. This dispersal is unexpected given the of its . are primarily sedentary within burrows, with males wandering to seek mates in late summer or early autumn.

Ecological Role

As a burrowing wolf , it functions as a in sandy open . Its high ballooning frequency contributes to connectivity despite localized distributions.

Similar Taxa

Geolycosa turricolaAlso exhibits high ballooning frequencies in stable ; the two were studied together and differ in ratios of ballooners to non-ballooners
Geolycosa missouriensisShares burrowing and elevated , but occurs in the Great Plains rather than the southeastern United States
Hogna speciesSimilar large size and general wolf appearance, but lacks the elevated and burrow-building characteristic of Geolycosa