Distribution Records PDF
Vetting Levels |
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Adult phenology:
High Mountains (HM) ≥ 4,000 ft.
Low Mountains (LM) < 4,000 ft.
Piedmont (Pd)
Coastal Plain (CP)
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id_comments |
Male with indistinct, wide submarginal light band and tuning-fork mark that is broken up into paired segments (Fig . 199). General body color in alcohol amber. Dorsum with distinct light-colored hastate mark bordered by black V-shaped mark which is bordered by light-colored converging stripes . Coxae, labium , sternum and endites without markings, venter with a little scattered pigment. Anterior eye row narrower than the posterior median row slightly procurved ; anterior
median eyes a little larger than the anterior laterals, closer to each other than to th e
laterals. Height of the clypeus twice the diameter of an anterior median eye . Lower
margin of the furrow of the chelicerae with two teeth .
Legs 4123, without annulae . Tibiae I and II with three pairs of ventrolateral spines, th e
distal pair apical in position, each with an additional prolateral spine about halfwa y
between the middle and apical pairs. The prolateral spine of the proximal pair on tibia I
barely overlaps the middle spine . The prolateral spines of the proximal and middle pairs
on tibia II are reduced to about half the size of their mates .
Description of female.—From Ramsey, New Jersey, July 11, 1948, W . Ivie (A .M .N.H.).
Carapace 3 .5 mm long, 2 .7 mm wide, with a rather indistinct submarginal light band and . .
a narrow, light streak extending forward from the cervical groove to between the posterior lateral eyes (Fig . 200). For dorsum see the figure . Coxae, labium, endites and sternum without pigment .
Anterior eye row narrower than the posterior median row, slightly procurved ; anterio r
median eyes about half again as large as the anterior laterals ; anterior median eyes close r
to each other than to the laterals. Height of the clypeus equal to the diameter of an
anterior median eye . Lower margin of the furrow of the chelicerae with two teeth, th e
largest near the base of the fang. |
total_length |
Male carapace 3 .2 mm long, 2 .4 mm wide, female carapace 3 .5 mm long, 2 .7 mm wide. |
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adult_id | 1 identifiable by photo 2 identifiable by photo of specific features and/or supplementary info 3 identifiable from specimen only |
abundance |
Rare, two broods in northern areas. No records of adults from January, February or March ; then both sexes for the next four months; no adults in August or September ; males are present in
October, and both sexes in November and December . The only egg sacs records are from July . |
distribution_comments |
Eastern half of the United States and Canada ; south into Florida |
checklist_mt_high >=4,000 ft. | |
checklist_mt_low <4,000 ft. | |
checklist_pd Piedmont | |
checklist_cp Coastal Plain | |
habitat |
wet swampy shady areas, damp old fields |
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Photo Gallery for Trebacosa marxi a wolf spider |
![](photos_records/2021/10/tnTrebacosa_marxi1635281587.jpg) | Recorded by: Carol Tingley Durham Co. Comment: | ![](photos_records/2021/10/tnTrebacosa_marxi1635281658.jpg) | Recorded by: Carol Tingley Durham Co. Comment: |
![](photos_records/2021/05/tnTrebacosa_marxi1621885681.jpg) | Recorded by: Carol Tingley Durham Co. Comment: Floodplain leaf litter | ![](photos_records/2021/05/tnTrebacosa_marxi1621885715.jpg) | Recorded by: Carol Tingley Durham Co. Comment: Floodplain leaf litter |
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