. A manual of injurious insects with methods of prevention and remedy for their attacks to food crops, forest trees, and fruit. To which is appended a short introduction to entomology . ia pnrchasi), nat. size and ma.(After Prof. Kiley). The third section is of the Coccidce, or Scale Insects ; herethe females are usually fleshy masses, furnished with suckers,but without trace of articulated limbs; the males have onepair of wings, but the mouth is obsolete. For descriptions and life-histories of the above insects, seereferences in Index, and for history of Icerya imrchasi, see Observations on s
. A manual of injurious insects with methods of prevention and remedy for their attacks to food crops, forest trees, and fruit. To which is appended a short introduction to entomology . ia pnrchasi), nat. size and ma.(After Prof. Kiley). The third section is of the Coccidce, or Scale Insects ; herethe females are usually fleshy masses, furnished with suckers,but without trace of articulated limbs; the males have onepair of wings, but the mouth is obsolete. For descriptions and life-histories of the above insects, seereferences in Index, and for history of Icerya imrchasi, see Observations on some Injurious Insects of S. Africa, by Ed. 11. HETEEOPTEEA (Westwood).Plant Bugs, Water Scorpions, &c. Wings four, the upper pair or wing-cases the largest, partlylapping over each other when at rest, and with the part thenearest to the body leathery and dissimilar in texture tothe rest of the wing, which is membranous; under wingsmembranous, sometimes wanting. ENTOMOLOGY. 393 The head is usually broad, with horns commonly of moder-ate length, composed of three to five joints ; mouth suctorial,but placed in front of the lower part of the 1 and 2, Potato Bug (Lyfjits solmii): S^and 4, pupa, nat. size and magnified;5, Hop Bug, nat. size; 6, ditto, magnified. Horns usually somewhat thread-like. Legs various,^ chieflyformed for walking, but sometimes in the aquatic species withfringes on the hinder pair. Larvffi resemble the perfect insect, but without rudimentsof wings ; pupse with still more resemblance, from these beingdistinguishable. One section of this Order lives in water, and contains theinsects commonly known as Water Scorpions and Water Boat-men ; the other, besides the AVater Measurers common onwater, contains various kinds of Bugs preying on plant andanimal life by means of their suckers, and characterisedgenerally by a power of giving out a scent on being alarmed,which is usually, but not always, of a disagreeable kind. 12. APHANIPTEEA (Kirby).—Fleas.
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