Some "glow-worms" are female fire-flies or lightning-bugs. There are at least a score of common insects that are luminous, besides some rare ones. With some species of fire-flies (our common fire-fly included) both sexes are winged, while with others the females lack wings and are known as "glow-worms."
July Twelfth
With most birds, the female only builds the nest and incubates the eggs, after which both birds usually assist in bringing up the young. Some of the exceptions to this rule are the male Bob-white, house wren, catbird, blue-headed, yellow-throated, and warbling vireos, and the barn and eave swallows, each of which does his share of the domestic duties and takes care of the young birds.
Notes
July Thirteenth
Through ignorance we often persecute our best friends. The ichneumon fly is a parasitic insect that all should know. It lays its eggs in the larvæ of many injurious insects, and its larvæ feeds upon them. A great enemy to the horned-tails, it is invariably misjudged and killed, when discovered with its ovipositor inserted in one of the borings of the horned-tail fly.
July Fourteenth
How beautiful is the awakening of the evening primrose. No sooner is the sun beneath the horizon, than the calyx begins to swell and out springs a yellow petal. Then another and another appear before your very eyes, until the petals look like the blades of a screw propeller. The blossom is often less then five minutes in opening, and is immediately surrounded by tiny black insects.