. Agriculture of Maine. ... annual report of the Secretary of the Maine Board of Agriculture. Agriculture -- Maine. 180 BOARD OF AGRICULTURE. from their habit of feeding upon plant lice, are very like the hymen- optera in form and coloration, having hemispherical heads, rather flattened bodies, ornamented with yellow bands and spots; they hover in the hot sun over and about flowers, resting upon them to feed upon their sweets. The eggs are laid among a group of plant lice, which hatch out footless, eyeless, flattened grubs, having extensile bodies to reach up and grasp the Aphis by Fig. 20. th
. Agriculture of Maine. ... annual report of the Secretary of the Maine Board of Agriculture. Agriculture -- Maine. 180 BOARD OF AGRICULTURE. from their habit of feeding upon plant lice, are very like the hymen- optera in form and coloration, having hemispherical heads, rather flattened bodies, ornamented with yellow bands and spots; they hover in the hot sun over and about flowers, resting upon them to feed upon their sweets. The eggs are laid among a group of plant lice, which hatch out footless, eyeless, flattened grubs, having extensile bodies to reach up and grasp the Aphis by Fig. 20. their jaws, which are peculiarly modified for seizing their-prey. They do great damage among these enemies of vegetation. The species of Eristalis which flies abundantly in May about the blossoms of gooseberries j ^^-^ \ and currants, live in the water during their larval state, and are called rat-taile(J maggots. The abdomen of Conops is peduncu- lated, whilethe thorax is globular like Eumenes, a genus of wasps. Empis represents a small group of species that are allied in form to the Asilidse. They are active flies, and very rapacious, seizing upon other insects and sucking out their juices. They often as- semble in swarms. Dolicliopus and allies have long legs, and are generally green' colored, and occur solitary in leaves or in damp situations, or in numbers flying and running on the surface of pools and running brooks, appearing very early in spring. (Entridae, (Bot-flies.) In these flies, which are of large size, the mouth parts are nearly obsolete, the flies themselves having thick bodies, covered thickly with hairs. The fly lays her eggs upon that part of the animal from which the larvae as they hatch out may find their way by some means to burrow in the back or stomach of the animal which they infest. From thence, when full grown, they escape and pass through their remaining changes in the earth. These grubs are very thick and soft, being broad oval, with rows of minute s
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