[1851] Ibid. p. [560]. and Plate [XXVIII.] Fig. 11. a.
[1853] [Ibid.] Fig. 11. 12. g´´.
[1854] Stoll Sauterelles à Sabr. t. iv. f. 12. t. vi. f. 21. &c.
[1855] Sur le Vol. des Ins. c. i. 424.
[1856] The idea of dividing the wing of an insect into larger areas seems first to have been acted upon in Monogr. Apum Angl. (1801), in which those of Hymenoptera were stated to consist of three portions, viz. Basis, Medium, Apex (i. 211.); which mode of dividing them was at first adopted by M. Latreille (Gen. Crust. et Ins. iii. 226. Note 1.) The same learned author (Ibid. iv. 239.), with regard to the Diptera, made a near approximation to the plan of dividing wings into longitudinal areas, but by the addition of a basal area, which interrupts the attention to the communication of the areas with their axes, he has rendered his system less perfect. Two of his terms—Costal Area and Intermediate Area, are here adopted; but his Internal is changed to the Anal Area, for the term internal belongs rather to the base of the wing. M. Latreille afterwards relinquished both these plans, N. Dict. d'Hist. Nat. i. 248—.
[1857] Plate [X.] and [XXVIII.] b.. i.. is the Postcostal Nervure.