. The Australian zoologist. Zoology; Zoology; Zoology. 164 A RECLASSIFICATION OF THE ORDER ODONATA. I am unable to subdivide this family into subfamilies. The Old World and New World forms appear to constitute two parallel series with closely similar characters, each still retaining genera with a complete subdiscoidal cell and running out to highly specialized forms with this cell obsolete and CuP greatly reduced. Genera:—New World Series:—Peristicta Selys, Neoneura Selys, Idion- eura Selys, Microneura Selys, Protoneura Selys, Epipleoneura Will., Epipotoneura Will., Phasmoneura Will., Psairone
. The Australian zoologist. Zoology; Zoology; Zoology. 164 A RECLASSIFICATION OF THE ORDER ODONATA. I am unable to subdivide this family into subfamilies. The Old World and New World forms appear to constitute two parallel series with closely similar characters, each still retaining genera with a complete subdiscoidal cell and running out to highly specialized forms with this cell obsolete and CuP greatly reduced. Genera:—New World Series:—Peristicta Selys, Neoneura Selys, Idion- eura Selys, Microneura Selys, Protoneura Selys, Epipleoneura Will., Epipotoneura Will., Phasmoneura Will., Psaironeura Will. Old World Series:—Chlorocnemis Selys, Disparoneura Selys, Caconeura Kirby, Esme Fraser, Phylloneura Fraser, Melanoneura Fraser, Elattoneura Cowley, Isomecocnemis Cowley, Nososticta Selys, Austrosticta Till., Neosticta Till., Notoneura Till., Orosticta Till., Selysioneura Forst, Isosticta Selys, Prodasineura Cowley. Of* these, Nososticta, Isosticta, and all Tillyardian genera are Aus- tralian. Family 9. Platycnemididae nov. fam. (Fig. 25.). Axj Ax2 yy. Subfamily Platycneminae Fraser, 1929, J. Bombay Nat. Hist. Soc, 33: 835. JSfodus situated at about one-third of the wing-length from the base, sometimes slightly more or less but never as close as one-fourth. Ptero- stigma small, more or less trapezoidal, usually more or less strongly braced. Transverse arrangement of cross-veins distal to subnodus very complete, the only main veins which are zigzagged being 1A, the distal part of MA, and, rarely, the distal part of 1R3. 1R3 and R4 + 5 arising close together at or near subnodus, 1R2 and R3 well distal to nodus and two to four cells apart. Discoidal cell never with the distal angle very acute; either short and rectangular (Metacnemis, Mesocnemis) or distinctly longer than wide, with the anterior side slightly shorter than the posterior. Subdiscoidal cell always present and complete (absent in Tatocnemis). CuP and 1A always well developed. All species rest with the w
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1914
