Fishing spider (Dolomedes vittatus) and nursery - Dolomedes vittatus
Potomac (Cabin John RP), Montgomery County, Maryland, USA
August 8, 2010
Female guarding nursery (with adjacent egg sac) about 20-30 cm away (see other images), on edge of small stream. Another nursery was found about 1 m away but no female was seen. Note characteristic pair of black triangles near thoracic groove.
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