The Common Spiders of the United StatesEmerton, J. H. (James Henry)
Science
The Common Spiders of the United States
Emerton, J. H. (James Henry)
Spiders -- United States
$Meta menardi.$--This spider lives in caves and similar cool and shady
places in various parts of this country and also in Europe. In general
appearance, especially when young, it reminds one of Linyphia. The
abdomen is longer than wide, high in front, and tapering a little behind
(fig. 445). The eyes are near together, the lateral eyes almost as near
the middle pairs as they are to each other. The mandibles are long,
thickened in front near the base, and slightly turned outward at the
ends and strongly toothed on the inner side about the claw. The maxillæ
are also long and a little widened at the ends. The dorsal groove is
very deep. The legs are long, the front pair twice the length of the
body. The full-grown female is half an inch in length, the male a third
shorter, but with legs nearly as long. The general color is gray, the
lighter parts translucent and yellowish. The cephalothorax has three
gray stripes, more distinct in the young, a middle stripe from the eyes
to the dorsal groove, and one on each side of the thorax. In the young
(fig. 444) the markings of the abdomen are two large dark spots near the
front end and several other pairs, becoming smaller toward the hinder
end. In adults these markings unite into a middle stripe more like
Epeira, with a light middle spot in front and several middle spots and
pairs of spots diminishing backward. The legs have gray rings at the
ends and middle of the joints. The webs are horizontal or inclined,
according to the shape of the rocks on which they are built. They
resemble the webs of Tetragnatha, having a small central spiral with a
round hole in the middle, across which the spider holds herself. This
spider matures late in the autumn or early in the summer, and makes
large, loose, and transparent cocoons, hung near the webs.
[Illustration: FIGS. 446, 447. Argyroepeira hortorum, enlarged four
times.--446, under side of female. 447, back of female.]
[Illustration: FIG. 448. Argiope riparia in the middle of the web.
Natural size.]
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