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...

Plate

The cicada just after emergence from the nymphal skin. (Enlarged Iwo-thirds) by Dr J. A I. intner in his Tueljth Report on the bisects of New York, published in 1897. Dr. Lin trier says the turrets are constructed by the nymphs wit,h soft pellets of clay or mud brought up from below and firmly pressed mtc place, and he records an observation on a nymph caught at work with a pellet of mud in its claws. We may infer, then, that the cicada's sfy le of work as a mason is only a modification of its...

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

Forest Insects List Ppt

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...