Elementary textbook of economic zoology and entomology . elementarytextbo00kell Year: [c1915] SCORPIONS, SPIDERS, MITES AND TICKS 209 keeper, the funnel-web weavers found in the woods and meadows, and the various orb-weavers are all most interesting and deserve more notice, but as they are of no particular economic importance except as they destroy noxious insects, they will not be discussed further here. The best book about American spiders is 'The Spider Book' by Professor J. H. Comstock. FIG. 95.—Web of a grass spider, A galena sp. (Reduced.) TICKS AND MITES (ORDER ACARINA) From an econ
Elementary textbook of economic zoology and entomology . elementarytextbo00kell Year: [c1915] SCORPIONS, SPIDERS, MITES AND TICKS 209 keeper, the funnel-web weavers found in the woods and meadows, and the various orb-weavers are all most interesting and deserve more notice, but as they are of no particular economic importance except as they destroy noxious insects, they will not be discussed further here. The best book about American spiders is 'The Spider Book' by Professor J. H. Comstock. FIG. 95.—Web of a grass spider, A galena sp. (Reduced.) TICKS AND MITES (ORDER ACARINA) From an economic standpoint the mites and ticks, consti- tuting the order Acarina, are by far the most important mem- bers of this class. The body is very compact, the cephalo- thorax and abdomen being closely fused. This character will serve to separate them from the spiders, the young of which might be mistaken for mites. Ticks.—The ticks are all comparatively large, that is, they are large enough to be seen with the unaided eye, even in their younger stages, and some grow to be half an inch long. The young when first hatched have only six legs but after the first
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