498 Wisconsin Academy of Sciences, Arts and Letters. 
ICIUS SIMILIS B. 1895. 
Plate XLI, figs. 2—2c. 
1891. Icius elegans E., (dark variety), Trans. Conn. Acad. VIII, p. 16. 
1895. Icius similis B., $, Can. Ent., p. 100. 
Length, $ 4.5 mm., 9 5.5 mm. Legs, $ 1423, $ 4123, 
slender, with longitudinal stripes, femur I slightly enlarged in 
both sexes, tibia I in male with black hairs throughout its length. 
Spines S $ , tib. I 2-2 or 1-1 and 1 behind, tib. II 2 below, 
serially; met. I and II 2-2, all small and fine. 
This is an iridescent spider, with tufts over the eyes in the 
male, as in elegans. The two species are nearly alike, differ¬ 
ing only in the following particulars. In the male the tibia 
of the first leg is spined differently, has no dark spot at the end, 
and the hairs grow throughout the length of the joint; the color 
on the sides of the cephalothorax, below the eyes, is darker, 
lacking the red tinge of elegans; and the palpus is distinct, with 
a much thicker tube. In the female the color of the body is 
darker, the femur of the first leg is lighter, there is no white 
basal band on the abdomen, and the epigynum is different. We 
have some males which have the hairs, throughout the length of 
the first leg, white. 
This is the most widely distributed of all the species of Icius. 
Mr. Emerton has it from the Adirondacks (Hew York) and the 
White Mountains (Hew Hampshire), Mr. Banks, from Colo¬ 
rado, Hew Mexico and Washington, and we have found it in 
Wisconsin and in Victoria, British Columbia. 
ICIUS ELEGANS H. 1845. 
Plate XLI, figs. 1—Id. 
1845. Attus elegans $, Attus superciliosus H., Jour. Bost. Soc. 
Nat. Hist. V. 
1848. Maevia cristata g C. K., Arachn., XIV, p. 70. 
1875. Attus elegans $, Attus superciliosus H., Occ. Pap. Bost. Soc. 
Nat. Hist., II, pp. 56, 68. 
