Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . ls cattle by its painful bite, though its in-jurious nature is said to have been overrated. It is allied toStomoxys, the species of which bite very sharply. 8. cdltrirtmxhas a well developed proboscis, enabling it to bite is often found in houses. The species of the genus Tachina, like the Ichneumonidse, areparasitic in caterpillars, and others are found in the nests ofbees. They are stout flies, covered with bristles, with the eyesmu
Guide to the study of insects, and a treatise on those injurious and beneficial to crops: for the use of colleges, farm-schools, and agriculturists . ls cattle by its painful bite, though its in-jurious nature is said to have been overrated. It is allied toStomoxys, the species of which bite very sharply. 8. cdltrirtmxhas a well developed proboscis, enabling it to bite is often found in houses. The species of the genus Tachina, like the Ichneumonidse, areparasitic in caterpillars, and others are found in the nests ofbees. They are stout flies, covered with bristles, with the eyesmuch larger in the males than in the other sex. The bristleof the antenna? is bare or with a very short pubescence. Thethorax is short, and the first posterior cell is closed, or butslightly opened, and the legs are short. The abdomen is ovalor cylindrical, and the first segment is much shortened. Thelarvae are oval, with the segments much constricted ; they haveno head ; the last segment bears two spiracles. T. (Senomet-opia) militaris Walsh lays its eggs, from one to six in num-ber, on the Army worm (Leucania unipuncta), fastening 408 them by an insoluble cement on the upper surface of the twoor three first rings of the body. The eggs hatch often afterthe caterpillar has gone under ground to transform, and infifteen to nineteen days, or the last of September, the flies ap-pear. T. (Lydelhi) doff/phorcv Riley (Fig. 328) preys on the larvae of the Colorado potatobeetle. Other species of gen-era allied to Tachina, accord-ing to Dufour, are parasitic onbeetles, etc ; thus, Cassidomyiapreys on Cassida,on Braehyderes, andattacks Pentatoma : and hethinks that Clt]iil«,Jtoi-«}/Kfeeds either on the food or theyoung itself of , the Flesh-fly, has a small head, with the antennalbristle plumose or hairy, naked at the tip ; the first posteriorcell only slightly opened, or closed, with large, teguhv andstout legs. The flesh-fly, Sarcophaga i-uriKirid, Linn., is
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Keywords: ., bookcentury1800, bookdecade1870, bookpublishe, booksubjectinsects
