. The biology of dragonflies (Odonata or Paraneuroptera). Dragon-flies. 264 CLASSIFICATION [CH. border of wing. Ej^es only just touching. Male with inferior appendage trifid, longer than superiors. Larva with broadly upcmved lateral lobes on segments 3-8 (fig. 37). Tribe 2. Brachytronini (fig. 123). Triangles considerably elongated, reticulated. Rs either unforked, or symmetrically forked before level of pt. Rspl straight, placed only 1-2 cell- rows below the lower branch of Rs. Mspl straight, similarly placed with respect to M^.. Fig. 123. Wings of BracJiytron kafniense Miiller, ^, Britain. (
. The biology of dragonflies (Odonata or Paraneuroptera). Dragon-flies. 264 CLASSIFICATION [CH. border of wing. Ej^es only just touching. Male with inferior appendage trifid, longer than superiors. Larva with broadly upcmved lateral lobes on segments 3-8 (fig. 37). Tribe 2. Brachytronini (fig. 123). Triangles considerably elongated, reticulated. Rs either unforked, or symmetrically forked before level of pt. Rspl straight, placed only 1-2 cell- rows below the lower branch of Rs. Mspl straight, similarly placed with respect to M^.. Fig. 123. Wings of BracJiytron kafniense Miiller, ^, Britain. (Hw. 35 mm.) Original. Larva with superior appendage pointed at tip, never bifid. A heterogeneous group including two series: Series 1. Boyeria-Senes. Rs unforked. Series 2. Brachytron-Series. Rs 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 Tillyard, Robin John, 1881-1937. Cambridge [Eng. ] : University Press
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