=Otiocerus Coquebertii=, is a slim fly of yellowish-white color, with a bright carmine-red stripe along each side of the body and wings, which are widely forked behind. Length 0.42 inch; July until autumn, on the wild grape vine. There are a great many insects of this order, which are familiar to most country residents on account of their unpleasant smell. These are the true bugs, and belong to the sub-division called _Heteropterous Hemiptera_. The Squash-bug is a familiar illustration of these insects; it is called the _Coreus tristis_, from its sad dull color; they are quite destructive to all plants of the Squash family. =Reduvius trinotatus=, is one of this order, which is a valuable aid to the horticulturists, because its sucker is armed with sharp instruments, that enable it to pierce and consume other insects, many of which are destroyed by it. This insect has been introduced into the West for the sake of its valuable services. ORDER LEPIDOPTERA. The insects of this order are very numerous, and in their larval or caterpillar state they are often very destructive. In the perfect form of butterflies and moths, they commit little or no depredations, because their jaws have been transformed into a sucking apparatus. They consume, in their perfect state, little else than honey. The order has been divided into three great sections: Butterflies, _Papiliones_; Hawk-moths, _Sphinges_; and Moths, or _Nocturnes_. Of these, the _Ægeridæ_ constitute a very distinct family, resembling bees and wasps rather than butterflies; their caterpillars also differ, being borers, and nearly naked. Butterflies are produced from caterpillars that are not generally very injurious to our crops. Hawk-moths are large insects, and have great power of flight; their caterpillars are large and voracious. It is the moths proper, a very numerous family, which do us the most harm, and which will demand the largest share of our attention. They vary much in size and appearance. Some of the females are destitute of wings. The _Arctians_ or Woolly Bears, are a very numerous division of the tribe of _Bombyces_ or Spinners, so called from the name of the Silk-worm; some of these will be mentioned.