Guide to the study of insects and a treatise on those injurious and beneficial to crops, for the use of colleges, farm-schools, and agriculturists . : — 1, costal; 2, subcostal; 3, marginal; 3*, inuer marginal; 4, sub-marginal; .5, second submarglnal; C-IO, first to fifth posterior; 11, discal; 12, firstbasal; 13, second basal; 14, anal; 15, axillary; 10, spurious. Veins:—6 I, auxiliary;c»K, first longitudinal; h, n, o, second longitudinal; h i, prsefurca; k n, anteriorbranch of the second longitudinal vein; 7: o, posterior branch of the second longi-tudinal vein; ii-, petiole of the first sub
Guide to the study of insects and a treatise on those injurious and beneficial to crops, for the use of colleges, farm-schools, and agriculturists . : — 1, costal; 2, subcostal; 3, marginal; 3*, inuer marginal; 4, sub-marginal; .5, second submarglnal; C-IO, first to fifth posterior; 11, discal; 12, firstbasal; 13, second basal; 14, anal; 15, axillary; 10, spurious. Veins:—6 I, auxiliary;c»K, first longitudinal; h, n, o, second longitudinal; h i, prsefurca; k n, anteriorbranch of the second longitudinal vein; 7: o, posterior branch of the second longi-tudinal vein; ii-, petiole of the first submarginal cell; rp, third longitudinal; dqrst, fourth longitudinal; q r, fork of its anterior branch; the posterior branch ofthis fork, ending in r, is INIr. Loews anterior intercalary vein; s t, fork of the pos-terior branch of tlie fourth vein; the branch of this fork, ending in t, is Mr. Loewsposterior intercalai-y vein; e u, fifth longitudinal; / v, sixth longitudinal; g w,seventh longitudinal. Cross-veins:—x,\\m\\ei\\\; x x, subcostal; xara;, marginal;X*, small, or anterior cross-vein; x**, gi-eat cross-veiu. — From Osten Fig. 271 (1). Wingof Ortalis. — a, transverse shoulder-vein; b, auxiliary vein; c,d, e, f, g and h, first, second, third, fourth, fifth and sixth longitudinal veins; i,small or middle transverse vein; k, hinder transverse vein; I, m, n, o, costal vein;p, anterior basal ti-ansverse vein; q, posterior basal transverse vein; r, nidimentof the fourth tnmk; s, axillary incision ; A, B, and C, first, second and third costalcells; D, marginal cell; £, submarginal cell; F, G and H, first, second and thirdposterior cells; 7, discal cell; K. first or large basal cell; L, second basal ccU, or DIPTERA. 361 M. Marey has determined that a common Qy when held cap-tive moves its wings 330 times a second ; a honey bee 190times, and a cabbage butterfly (Pieris) nine times. The win^^sdescribe a figure 8 in the air. (Cosmos.) Landois, calcu-lating the rap
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Keywords: ., bookcentury1800, bookdecade1880, bookpublishe, booksubjectinsects
