. The insect book [microform] : a popular account of the bees, wasps, ants, grasshoppers, flies and other North American insects exclusive of the butterflies, moths and beetles, with full life histories, tables and bibliographies. Insectes; Insects. THE FROG-HOPPERS OR SPITTLE INSECTS (Family Ciicopid^.) This is a rather fa-nily comprising mostly rather insects, many of which are known as " frog-hoppers' or "spittle insects. The antenna-are placed between the eyes, there are only two ocelli and the thorax is not strangely modilied as with the Membracid*. Few insects ex


. The insect book [microform] : a popular account of the bees, wasps, ants, grasshoppers, flies and other North American insects exclusive of the butterflies, moths and beetles, with full life histories, tables and bibliographies. Insectes; Insects. THE FROG-HOPPERS OR SPITTLE INSECTS (Family Ciicopid^.) This is a rather fa-nily comprising mostly rather insects, many of which are known as " frog-hoppers' or "spittle insects. The antenna-are placed between the eyes, there are only two ocelli and the thorax is not strangely modilied as with the Membracid*. Few insects excite more interest among moderately observant people than the true spittle insects which belong to the subfamily Aphrophorina;. They are small, slender, brown, clay-yellow or grayish species^ and after hatching from the egg live in little masses of froth resembling spittle on the stems of plants and trees, frequently on grasses and weeds. In some parts of the south, according to Uhler, the negroes think that horse-tlies are developed from these froth specks. When abundant they may do con- siderable damage to pasture-lands. Philanus spnmarius and P. Iiih\itiis are said by Fernald to be common on grass in The former is abundant in gardens in lingland and was probably introduced from England into this country. The eggs are laid in the stems of plants in the autumn and hatch in the spring. It was fornurlv thought that the spittl.' that soon surrounds the young ins^ .t was excreted from the anus, but Professor E. S. Morse has recently shown that only a clear liquid containing no hrbbles is thus exuded and that the air-bubbles are brought in by a constant thrashing about of the anal end of the body, bringint^ in air which is retained as bub- bles by the viscia quality of the liquid. There are anal append- ages which are probably branchial in function, according to Morse. It is that the purpose of the frothy mass is to pro- tect the soft-bodied immat


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectinsects, bookyear1901