. Elementary studies in insect life. Insects. WEALTH OF INSECT LIFE 167. body almost to the head. (Fig. 127.) When this is straightened out the insect is propelled several feet forward. Frequently num- bers of these little crea- tures like minute specks Fl(i. i27. springtaii ( bo- can be seen upon snow. To «°K8>- (^ter Tullberg.) such the name snow-flea is applied. NEUROPTERA. Insects with two pairs of membranous wings, bit- ing mouth-parts, metamorphosis complete in some di- visions and in others incomplete. The name arises from vevpov, neuron, nerve, and Trrepdv, pteron, wing.
. Elementary studies in insect life. Insects. WEALTH OF INSECT LIFE 167. body almost to the head. (Fig. 127.) When this is straightened out the insect is propelled several feet forward. Frequently num- bers of these little crea- tures like minute specks Fl(i. i27. springtaii ( bo- can be seen upon snow. To «°K8>- (^ter Tullberg.) such the name snow-flea is applied. NEUROPTERA. Insects with two pairs of membranous wings, bit- ing mouth-parts, metamorphosis complete in some di- visions and in others incomplete. The name arises from vevpov, neuron, nerve, and Trrepdv, pteron, wing. The wings, accordingly, are in many cases noticeable for the great amount of net-work. The front wing and the hind wing of the same insect are frequently alike in form, texture, and neuration. This order includes many heterogeneous insects, and is an order which has been subdivided by some authorities into a number of other orders. It includes such forms as the dragon-fly, May-fly, stone-fly, white ant, caddis-fly, and lacewing- fly. A wingless form, the bird-louse, is included here. A better understanding of the scope of the order will be gained by a treatment of a few representative forms. —These insects, as the illustration will show (Fig. 128), are characterized by two pairs of membranous wings, the hinder pair being much smaller than the front pair, and by the presence of two long, thread-like abdominal appendages. They are peculiarly 1 Family, Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hunter, Samuel John, 1866-1946. Topeka, Kan. , Crane & company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsects, bookyear1902
