. Insects, injurious and beneficial, their natural history and classification, for the use of fruit growers, vine growers, farmers, gardeners and schools . tle (Fig. 241), and the Virginian Tiger Beetle (Fig. 242) areexamples of this Family. Ground Beetles (Carabidx).—These in-sects have the head horizontal, or but littleinclined, and usually narrower than the ; the antenna are inserted under thesides of the front, and the color is mostlyblack. The larva are provided with six legs;they live in theVground, beneath logs, etc,and feed upon other insects. The adultsare usually predaceous, b
. Insects, injurious and beneficial, their natural history and classification, for the use of fruit growers, vine growers, farmers, gardeners and schools . tle (Fig. 241), and the Virginian Tiger Beetle (Fig. 242) areexamples of this Family. Ground Beetles (Carabidx).—These in-sects have the head horizontal, or but littleinclined, and usually narrower than the ; the antenna are inserted under thesides of the front, and the color is mostlyblack. The larva are provided with six legs;they live in theVground, beneath logs, etc,and feed upon other insects. The adultsare usually predaceous, but one or two spe-cies have been known to feed upon the green seeds of variousplants. The Gold-spotted Ground Beetle (Fig. 243) is anexample of this Family. TRIBE II. Predaceous Water Beetles.—These insects areaquatic in their habits, and prey upon other insects. Theycomprise two Families, as follows : Divers (Dytiscidas).—In these insects the antennas are slen-der and filiform, and the hind pair of legs are widely separatedfrom the middle pair. The larva? are provided with six legs. The Margined WaterBeetle (Fig. 244)* belongs to this * Fig. 244.— The larva («) and the pupa (b) are not those of the beetle figured at c ; cl is theanterior toot of a male ; e, that of a female. CLASSIFICATION OF INSECTS IXTO FAMILIES. 83 Whirligig Beetles (Gyrinidx).—Those Beetles have thethird joint of the antennae very large, and dilated on one side ;the eyes are divided in the middle; the hind pair of legsare not further separated from the middle pair than the firstpair are. Fig. 244.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectinsects, bookyear1883
