Annual report of the Board of Regents of the Smithsonian Institution . elements. The third axillary (3 Ax) lies posterior to theother two with its long axis transverse. Its proximal end articulates t^ HP 2Ax bf Rm. / / \ \ PNP AxC 3Ax jf Figure 12.—Diagram of basnl structure of wing in wing-flexing insects. ANP, Anterior notalwing process; I Ax, SAi, SAx, first, second, and third axillaries; AxC, axillary cord; 6, articula-tion of third axillary with terguni; bf, basal fold of wing, plica basalis; C, costa; c, distal endof third axillary; ICxi, first cubitus; 2Cu, second cubitus; D, flexor mus
Annual report of the Board of Regents of the Smithsonian Institution . elements. The third axillary (3 Ax) lies posterior to theother two with its long axis transverse. Its proximal end articulates t^ HP 2Ax bf Rm. / / \ \ PNP AxC 3Ax jf Figure 12.—Diagram of basnl structure of wing in wing-flexing insects. ANP, Anterior notalwing process; I Ax, SAi, SAx, first, second, and third axillaries; AxC, axillary cord; 6, articula-tion of third axillary with terguni; bf, basal fold of wing, plica basalis; C, costa; c, distal endof third axillary; ICxi, first cubitus; 2Cu, second cubitus; D, flexor muscle; d, articulation ofradius with second axillary; e, articulation of subcosta with first axillary;/, articulation of thirdaxillary with second axillary; HP, humeral plate;;/, jugal fold of wing, plica jugalis; Ju, jugalregion; M, media; to, proximal median plate; to, distal median plate; n V, last vannal vein;PNP, posterior notal wing process; R, radius; Rm, remigial part of wing; Sc, subcosta; T,tergum; tg, rudiment of tegula; V, vaiuial part of wing; IV, 2 V-n V, first to last vannal veins;vf, vannal fold of wing, plica vannalis with the tergum, and its distal extremity supports the bases^of theposter
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Keywords: ., bookauthorsmithsonianinstitutio, bookcentury1800, bookdecade1840
