Synonyms and other taxonomic changes
Explanation of Names
First described in 1883 by George and Elizabeth Peckham
as Attus johnsonii
From the original description:
"This species is named for Prof. O. B. Johnson, of Washington University, Seattle, W. T., to whose kindness we are indebted for an interesting collection of Washington Territory arachnida."
Mostly black with a red abdomen. The male's abdomen is entirely red, whereas the female's abdomen has a black mark down the center.
Not harmful to humans, although like all spiders it will inflict a painful bite if provoked, and this species is reported to be more aggressive than other jumpers.
Descriptions of new or little known spiders of the family Attidae, from various parts of the United States of North America
, p.22 (downloadable from this page
: look for "Peckham and Peckham 1883") The Peckhams' original description of the species.