. The Cambridge natural history. Zoology. 202 ORTHOPTERA Saltatoria are niuch more intimately allied, and should, taken together, probably have only the same taxonomic value as any one of the other five groups. Owing partly to the inherent difficulties of the subject, and partly to the fragmentary manner in which it has been treated by systematists, it has been impossible till recently to form any clear idea of the classification of Orthoptera. During the last twenty years Henri de Saussure and Brunner von "Wattenwyl have greatly elucidated this suliject. The latter of these two distingui
. The Cambridge natural history. Zoology. 202 ORTHOPTERA Saltatoria are niuch more intimately allied, and should, taken together, probably have only the same taxonomic value as any one of the other five groups. Owing partly to the inherent difficulties of the subject, and partly to the fragmentary manner in which it has been treated by systematists, it has been impossible till recently to form any clear idea of the classification of Orthoptera. During the last twenty years Henri de Saussure and Brunner von "Wattenwyl have greatly elucidated this suliject. The latter of these two distinguished naturalists has recently published ^ a revision of the system of Orthoptera, which will be of great assistance to those who may wish to study these Insects. "We therefore reproduce from it the characters of the tribes, placing the portion relating to each family at the end of our sketch thereof. Fam. I. Forficulidae—Earwigs. (dekmapteka or deematoptera of brauek AiiD others) Insects of elongate form, ivith an imbricate arrangement of the segments of the body; hearing at the iMsterior extremity a ^Jrtir of callipers or more distorted instru- ments. The hind ivings (tvhen iwesent) folded in a comjilex manner, and covered, except at their tiiJS, hy a pair of short iving-covers (tegmina), of a leather-like consist- ence. Wingless forms are very numerous. The young is very similar to the adult. Although earwigs are said to be rare in most parts of the world, yet in Europe no Insect is Ijetter known than Forflcula auricularia, the common earwig, it being very abundant even in gardens and cultivated places. In certain seasons it not un- frequently enters our houses, in which case it too often falls a 1 Ann. Mus. Genova, xxxiii. (1892).. Fig. 102.—Pygidicrana Jmgeli. 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
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