. The Acarina or mites. A review of the group for the use of economic entomologists. Mites. Fig. 55.—Atomus maculatus. (Author's illustration.) ?enus {Smaris) there are also two eyes close together near the middle of the anterior margin. The palpi are prominent, five-jointed, the last forming a "thumb" to the preceding, which ends in a claw. The mandibles (fig. 54) are slender, needle-like,, and retractile, thus differing greatly from those of Trom- hidium and forming the warrant for a separate family. The legs are commonly quite slender, the hind pah* sometimes more than twice as lo
. The Acarina or mites. A review of the group for the use of economic entomologists. Mites. Fig. 55.—Atomus maculatus. (Author's illustration.) ?enus {Smaris) there are also two eyes close together near the middle of the anterior margin. The palpi are prominent, five-jointed, the last forming a "thumb" to the preceding, which ends in a claw. The mandibles (fig. 54) are slender, needle-like,, and retractile, thus differing greatly from those of Trom- hidium and forming the warrant for a separate family. The legs are commonly quite slender, the hind pah* sometimes more than twice as long as the body. They are seven-jointed and terminate in two small claws. The last joint, or tarsus, is nearly always shorter than the pre- ceding joint, and in the first and fourth pairs often swollen. The body and legs are densely covered with bristles or hairs, sometimes both. The hinder pair of legs are always quite remote from the anterior pairs. The genital opening is between the hind coxae, and the anal opening is usually close l)ehind it. These mites are usually found on the ground, sometimes in very hot situations, and run over the surface or on low plants with great rapidity. Other species occur in moss or under fallen leaves in woods, and one is abundant among the rocks near the top of Mount AVashington. Several spe- cies appear to live in colonies, but most are solitary in habit. The eggs are deposited on the ground or under stones, often in clusters. The larva (fig. 56) is a six-legged mite attached to insects. \Mien full fed it drops to the ground and becomes quiescent, and after a varying time transforms to the Fig, 56.—Leptus of raen^ on a plant (Original.) Eryth- Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Banks, Nathan, b. 1868; United States. Department of Agricultur
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