Exoesqueleto da cabeza, tórax e dous primeiros segmentos abdominais:[14] A. Austrophlebia costalis (libélula) femia; vista dorsal. B. A mesma en vista ventral. C. A mesma en vista lateral. D. Cabeza da mesma en vista frontal. E. Cabeza de of Lestes (cabalo do demo), vista dorsal. F. A mesma en vista lateral. G. Metatórax de Orthetrum (libélula), vista ventral.
 A = vea anal; A' = vea anal secundaria; ac = anteclípeo; alr = crista antealar; ant = antena; ap = proceso costal; As = urosternito; At = uroterxito; ax = axilar; C = vea costa; Cu = vea cubital; cx = coxa; dr = carina dorsal; e = ollo; epic = epicranio; epm = epímero; eps = episterno; fr = fronte; fr1 = porción superior da fronte, fr2 = porción anterior da fronte; Fw = á anterior; g = xena; hs = sutura umeral; Hw = á posterior; ips = infraepisterno; ll = lobo lateral do labio; lm = labio; lr = labro; ls1 = primeira sutura lateral; ls2 = segunda sutura lateral; M = vea media; mb = membránula; md = mandíbula; me = liña ocular media; ml = lobo medio do labio; mt = mento; N = noto; occ = occipucio; ocl = ocelos laterais; ocm = ocelos medios; orb = órbita; ot = triángulo occipital; P = protórax; pc = posclípeo; Pl = pleuro; PN = posnoto; pol = lobo postocular; PS = posesterno ; R = vea radial; S = esterno; Sc = vea subcosta; Sp = espiráculo; t= templo; v = vértex; vt = tubérculo vertical.
English: Title: The biology of dragonflies (Odonata or Paraneuroptera) Identifier: biologyofdragonf00till (find matches) Year: 1917 (1910s) Authors: Tillyard, Robin John, 1881-1937 Subjects: Dragon-flies Publisher: Cambridge (Eng. ) : University Press Contributing Library: University of California Libraries Digitizing Sponsor: Internet Archive View Book Page: Book Viewer About This Book: Catalog Entry View All Images: All Images From Book Click here to view book online to see this illustration in context in a browseable online version of this book. Text Appearing Before Image: 10 THE IMAGO (CH. It seems fairly certain that, originally, only the first of these segments was preoral. Thus it corresponded with the prostomium of Annulate Worms, and is not strictly to be considered as an appendage-hearing segment. The mouth itself has moved from an original ventral position, to take up a place at the extreme anterior end of the head. Hence the original ventral surfaces of segments vt ant Text Appearing After Image: Fig. 1. Exoskeleton of head, thorax, and first two abdominal segments, A. Austrophlebia costalis Tillyard, female; dorsal view. B. The same, ventral view. C. The same, lateral view. D. Head of the same, front view. E. Head of Lestes, dorsal view. F. The same, lateral view. G. Metathorax of Orthetrum, ventral view. A analis; A' secondary analis; ac anteclypeus; alr ante-alar ridge; ant antenna; ap costal process; As urosternite; At; urotergite; ax axillary; C costa; Cu cubitus; cx coxa; dr dorsal carina; e eye; epic epicranium; epm epimerum; eps episternum; fr frons; fr1 its superior, fr2 its anterior portion; Fw fore-wing; g gena: hs humeral suture; Hw hind-wing; ips infra-episternum; ll lateral lobe of labium; lm labium; lr labrum; ls1 first, ls2 second lateral suture; M media; mb membranule; md mandible; me median eye-line; ml median lobe of labium; mt mentum; N notum; occ occiput; ocl lateral, ocm median ocellus; orb orbit; ot occipital triangle; P prothorax; pc postclypeus; Pl pleurum; PN postnotum; pol postocular lobe; PS post-sternum ; R radius; S sternum; Sc subcosta; Sp spiracle; t temple; v vertex; vt vertical tubercle, (A-D and G x2; E, F x5.3) Original. Note 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.