Identifier: annualreportofbo1929smit (
find matches)Title:
Annual report of the Board of Regents of the Smithsonian InstitutionYear:
1846 (
1840s)Authors:
Smithsonian Institution. Board of Regents United States National Museum. Report of the U.S. National Museum Smithsonian Institution. Report of the SecretarySubjects:
Smithsonian Institution Smithsonian Institution. Archives Discoveries in sciencePublisher:
Washington : Smithsonian InstitutionContributing Library:
Smithsonian LibrariesDigitizing Sponsor:
Smithsonian LibrariesView Book Page:
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view book online to see this illustration in context in a browseable online version of this book.Text Appearing Before Image:C Sc RText Appearing After Image:Figure 11—Basal structure of wing of a dragon Qy and a May lly, insects that do not flex thewings posteriorly over the back. A, Basal part of forewing of a dragon fly (Anax Junius); a,detached plate of tergum; AxP, axillary plate; C, costa; c, small sclsrite at base of costa; HP,humeral plate; M, media; R. radius; Sc, subcosta; T, tergum. B, Basal part of forewing ofa Mayfly; Ax, axillary region corresponding with axillary plate of dragon flys wing (^zP oA); other lettering as on A plate carries the fom- basal shafts of the other wing veins, which areall directly attached to it. The humeral plate is hinged to the anterior 396 ANNUAL REPORT SMITHSONIAN INSTITUTION, 19 29 half of the lateral edge of the tergum, or back plate (T), of the segmentsupporting the wings, or sometimes to a distinct sclerite (a) of thetergum. The axillary plate is articulated to the posterior half of thelateral tergal margin opposite a deep membranous area of the latter.The wing base is supported from below bNote About Images Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.