Many Leaf rollers, Tortrices, are rolling up leaves in various ways for their habitations, and to conceal them from too prying birds; and hosts of young Tineans are now mining leaves, and excavating the interior of seeds and various fruits. Grape-growers should guard against the attacks of a species of Tortrix (Penthina vitivorana) which rolls the leaves of the grape, and, according to Mr. M. C. Reed, of Hudson, Ohio, "in mid-summer deposits its eggs in the grape; a single egg in a grape. Its presence is soon indicated by a reddish color on that side of the yet green grape, and on opening it, the winding channel opened by the larva in the pulp is seen, and the minute worm, which is white, with a dark head, is found at the end of the channel. It continues to feed upon the pulp of the fruit, and when it reaches the seeds, eats out their interior; and if the supply from one grape is extinguished before its growth is completed, it fastens this to an adjoining grape with a web, and burrows into it. It finally grows to about one-half of an inch in length, becomes brown, almost black, the head retaining its cinnamon color. When it leaves the grape it is very active, and has the power of letting itself down by a thread of silk. All my efforts to obtain the cocoons failed until I placed fresh grape leaves in the jar containing the grapes. The larvae immediately betook themselves to these, and, cutting a curved line through the leaf thus), sometimes two lines thus (), folded the edge or edges over, and in the fold assumed the chrysalis form. From specimens saved, I shall hope to obtain the perfect insect this season, and perhaps obtain information which will aid in checking its increase. Already it is so abundant that it is necessary to examine every branch of ripe grapes, and clip out the infested berries before sending them to the table. A rapid increase in its numbers would interfere seriously with the cultivation of the grape in this locality." The Rose beetle (Macrodactyla subspinosa) appears in great abundance. The various species of Buprestis are abundant; among them are the Peach-borer (Dicerca divaricata), which may be now found flying about peach and cherry trees; and Chrysobothris fulvogutta, and C. Harrisii, about white pines. A large weevil (Arrhenodes septentrionalis), which lives under the bark of the white oak, appears in June and July. The Chinch bug begins its terrible ravages in the wheat fields. The various species of Chrysopa or Lace-winged flies, appear during this month. _The Insects of July._