Observations of Pelegrina galathea , Peppered Jumping Spiders, on Barnes Tallgrass Prairie Remnants, Racine Co., WI 2017-2023
Pelegrina galathea, peppered jumping spiders, are often found from June through September on forbs and low shrubs at Barnes tallgrass prairie remnants in Racine County, WI. They share these remnants with Phidippus clarus, brilliant jumpers, which are often abundant from June through August. Phidippus princeps, grayish jumpers, are commonly seen from August through early October. Also present from July through September are Thomasidae, crab spiders and Dictyna sp. a small mesh weaver. Argiope aurantia, black and yellow garden spiders which were abundant in past years, now are rarely seen. There are a few Argiope trifasciata, banded garden spiders, on webs in the grassy areas. Lycosidae, wolf spiders, are commonly seen running over the grass.
Peppered jumpers were most often found where there were semi-open areas of flowering forbs, and at the edge of the hedge row, where one was seen on black cherry. They were found on plants from 22 to 40 inches above the ground.
The following is a summary of sightings by date, numbers of peppered jumping spiders seen and plants they were found on.
Date, No. of spiders seen, Plants they were found on, height above ground
Sept. 1, 2017, 1, Sweet black-eyed Susan flower
July 30, 2018, 1, common milkweed leaf, abt. 30” above ground
Aug. 18, 2018, 1, goldenrod stem, abt. 32” above ground
Sept. 8, 2018, 1, black cherry, P. serotina, branch abt. 40” above ground
Sept. 9, 2018, 1, Sweet black-eyed Susan flower, abt. 36” above ground
Sept. 16, 2019, 1, gray headed coneflower, flower 38” above ground
Sept. 2, 2020, 1, sweet black-eyed Susan flower, abt. 34” above ground
Aug. 10, 2021, 1, goldenrod leaf, abt. 30” above ground
Sept. 10, 2021, 1, Sweet black-eyed Susan petal, abt. 30” above ground
Sept. 13, 2021, 1, black eyed Susan flower, abt. 34” above ground
Sept. 15, 2021, 1, underside of coneflower head, abt. 34” above ground
Sept 15, 2021, 1, under Black-eyed Susan flower, abt. 30” above ground
July 28, 2022, 1, not logged
July 31, 2022, 1, goldenrod stem, abt. 24” above ground
Aug.16, 2022, 1, black-eyed Susan flower abt. 37” above ground
Aug. 22, 2022, 1, goldenrod leaf, abt. 27” above ground, with prey
June 7, 2023, 1, low growing shrub leaf abt. 25” above ground
July 1, 2023, 1, teasel, abt. 22” above ground
July 6, 2023, 1, aster leaf, abt. 29” above ground
July 8, 2023, 1, common buckthorn stem, abt. 24” above ground
July 11, 2023, 1, aster leaf
Aug 1, 2023, 1, goldenrod leaf, about 29” above ground
Aug 1, 2023, 1, goldenrod stem, running down
Aug. 31, 2023, 1, not logged
Sept. 1, 2023, 1, not logged
No predation of these spiders was observed. Peppered jumper prey consisted of small, unidentified flies; a leafhopper; ants; Allograpta obliqua, oblique streaktail; and unidentified Toxomerus, hover flies.
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