Archive image from page 22 of Diptera danica genera and Diptera danica : genera and species of flies hitherto found in Denmark dipteradanicagen01lund Year: 1907 [ntroduction. 9 advantageous that by chiefly using well known terms we may avoid un- necessary confusion and at the same time be capable without difficulty to bring the wings of the Diptera under a general point of view. — The terminology used is the foUowing: 1. the costal vein, stopping near the apex or extended all round, 2. the niediastinal vein which is concave, 3. the subcostal vein, convex, 4. the radial vein, concave, 5. the
Archive image from page 22 of Diptera danica genera and Diptera danica : genera and species of flies hitherto found in Denmark dipteradanicagen01lund Year: 1907 [ntroduction. 9 advantageous that by chiefly using well known terms we may avoid un- necessary confusion and at the same time be capable without difficulty to bring the wings of the Diptera under a general point of view. — The terminology used is the foUowing: 1. the costal vein, stopping near the apex or extended all round, 2. the niediastinal vein which is concave, 3. the subcostal vein, convex, 4. the radial vein, concave, 5. the cubilal vein, convex, 6. the discai vein, concave, 7. the postical vein, convex, 8. the anal vein, concave, 9. the axillary vein, convex. Fig. ->, Wing of Tiihatms fropicus. The cells are: a, the costal cell, b, the niediastinal cell, c, the sub- costal cell, d, the cubital cell, e, the discai eell, f, posterior cells, g, the first basal cell, h, the second basal cell, i, the anal cell, and k, the axillary cell: x is the medial cross-vein, y, the postical cross-vein.
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