Directions for collecting and preserving insects . ) [11] COLLECTING AND PRESERVING INSECTS RILEY. The relation of these sixteen orders to the older, septenary scheme isshown by the following arrangement: 1. Hynienoptera . Hymen optera XV. 2. Coleoptera ..... Coleoptera X. 3. Lepidoptera . . .Lepidoptera XIV. XI )Platyptera V 7. JSTeuroptera Pseudo-ueuroptera. Ephemeroptefall Thysauura I It will be seen that the changes are not so great as would at firstappear. The three more important orders, namely, the Hynienoptera,Coleoptera, and Lepidoptera, remain substantially the
Directions for collecting and preserving insects . ) [11] COLLECTING AND PRESERVING INSECTS RILEY. The relation of these sixteen orders to the older, septenary scheme isshown by the following arrangement: 1. Hynienoptera . Hymen optera XV. 2. Coleoptera ..... Coleoptera X. 3. Lepidoptera . . .Lepidoptera XIV. XI )Platyptera V 7. JSTeuroptera Pseudo-ueuroptera. Ephemeroptefall Thysauura I It will be seen that the changes are not so great as would at firstappear. The three more important orders, namely, the Hynienoptera,Coleoptera, and Lepidoptera, remain substantially the same in all clas-sifications, and so with the three orders next in importance—the Hem-iptera, Diptera, and Orthoptera. All that has been done with these. X>ia5f«m ill FIG. 3.—Cross section of Fii;. •_. three has been to rank as separate orders what by former authorswere preferably considered as either families or suborders. The princi-pal change is in the Neuroptera, of which no less than eight orders ha v<-been made. This is not to be wondered at, because the order, as for-merly construed, was conceded to be that which represents the lowest BULLETIN 39, UNITED STATES NATIONAL MUSEUM. [12] forms a ml more synthetic types of insects, and as such necessarilycontained forms which it is difficult to classify definitely. In the discussion of the characteristics, habits, number of species,and importance of the several groups, I follow, with such changes asthe advances in the science of entomology have made necessary, thearrangement shown in Fig. 1. Order HYMENOPTEKA (V^, a membrane; x-esp6v, Aving). Clearor Membrane-winged Flies: Bees, Wasps, Ants, Saw-flies, etc. Char-acterized by having four membranous wings with comparatively f
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Keywords: ., bookauthorrileycha, bookcentury1800, bookdecade1890, bookyear1892
