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The Common Spiders of the United States

J. H. Emerton

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Book Excerpt: 
. . .The palpi of the male (fig. 51) have the patella and tibia both short. The tibia is widened on the outer side and laps over the tarsus, extending in a blunt hook for half its length.

Figs. 49, 50, 51, 52. Clubiona crassipalpis.—49, head and mandibles of male from the left side. 50, head and mandibles of male from in front. 51, palpus of male. 52, maxillæ, labium, and ends of mandibles. Figs. 53, 54. Clubiona tibialis.—53, end of palpus of male, showing large tibia. 54, head and mandibles of male.

Clubiona tibialis.—Quarter of an inch long, the same size and color as crassipalpis, with[Pg 17] no markings and no dark color except on the mandibles and male palpi. The middle eyes are a little farther apart than in crassipalpis. The male mandibles (fig. 54) are narrower than in crassipalpis and without the sharp ridge on the outer side, but on the inside they are sharply hollowed out with a ridge between the th. . . Read More

Community Reviews

Easy-to-read household guide of the most abundant and familiar American spiders circa 1902.