Plate

Two species of g.ant moths Upper figure, the Cecropia moth, female lower, the Polyphemus moth, male. (From A. H. Clark) fly is a maggot (Fig. 182 D). The maggots of the house fly inhabit manure piles those of the blow fly live in dead animals where they feed on the decaying flesh. We might go on and fill a whole chapter, or a whole book for that matter, with descriptions of the forms that insects go through in their metamorphoses, but since other writers have demonstrated that this can be done...

De

Egg cases of five species of roaches. (Twice natural size) A, egg case of the Australian roach (fig. 49 C). B, that of the American roach (fig. 49 B) the other three are made by out-of-door species ably the best support of the trade in roach powders. Several other larger species are fortunately less numerous, but still familiar enough. Among these are one called the American roach (Fig. 49 B), a second known as the Australian roach (C), and a third as the Oriental roach (D, E). These...

Ways And Means Of Living

In our human society each md.vidual must obtain the tilings necessary fcr existence the manner by which he acquires them, whether by one trade or another, by this means or bv that, does not physically matter so long as he provides himself and his family with food, clothing, and shelter. Exactly so it is with ail forms of life. The physical demands of Jiving matter make certain things necessary for the maintenance of life in that matter, but nature has no law specifying that any necessity shall...

The Coneheads

This group of the katydid family contains slender, grasshcpperlike insects that have the forehead produced into a large cone and the face strongly receding, but which also pos sess long, slen der antennae that dis tinguish them from the true or short horn grasshoppers T hey constitute the subfamily Copi-phorinae. One of the commonest and most widely distriouted of the larger cone-heads is the species known as Neoconocephalus ensigcr, or the ' sword- bearing conehead. It is the female, however,...

Roaches And Other Ancient Insects

We used to speak quite confidently of t me as something definite, measurable by the clock, and of a year or a century as specific quantities of duration. In this present age of relativity, however, we do not feel so certain about these thmgs. Geclcgists calculate in years the probable age of the earth, and the length of time chat has elapsed since certain events took place upon it, but their figures mean only that the earth has gone around the sun approximately so many times during the interval...

A

A, the entire insect, showing the long underlip, or labium (Lb), closed against the under surface of the head. B, the head and first segment of the thorax of the nymph, with the labium ready for action, showing the strong grasping hooks with which the insect captures living prey A, the entire insect, showing the long underlip, or labium (Lb), closed against the under surface of the head. B, the head and first segment of the thorax of the nymph, with the labium ready for action, showing the...

The Rountdheaded Katydids

The members of this first group of the katydid family are characterized by hav.ng large wings and a smooth round forehead. They compose the subfamily Phanercp-tennae, which includes species that attain the acme of grace, elegance, and refinement to be found in the entire orthopteran order. Nearly all che round-headed katydids are musical to some degree, but their productions are not round forehead. They compose the subfamily Phanercp-tennae, which includes species that attain the acme of grace,...

The True Katydid

We now come to tha t artist who bears by right the name of katydid, the insect (Fig. 24) known to science as Pterophylla camellifoila and to the American public as the greatest of insect singers. Whether the katydid is really a musician or not, of course, depends upon the critic, but of his fame there can be no question, for his name is a house hold term as familiar as that of any of our own great artists, notwithstand.ng that there is no phonographic record of his music. To be sure, the cicada...

The Grasshoppers Cousins

Walking Stick Insect Wings

Nature's tendency s to produce groups rather than individuals Any animal you can think of resembles in some way another animal or a number of other animals. An insect resembles on the one hand a shrimp or a crab, and on the other a centipede or a spider. Resemblances among animals are either superficial or fundamental. For example, a whale or a porpoise resembles a fish and lives the life of a fish, but has the skeleton and other organs of land-inhabiting mammals. Therefore, notwithstanding...