. The biology of dragonflies (Odonata or Paraneuroptera). Dragon-flies. 344 BRITISH SPECIES [CH. Wings coloured, at least by a dark basal patch on hw. Abd. short, considerably wdened and depressed. Lobe of prothorax small. 15. L. quadrimacidata Linn, o dbd 28—29, hu- 35—36, pt 4. Wings with a yellowish-brown band along C, broadest at base; a small dark patch at nodus; a large triangular dark brown patch at base of hw; tips of wings sometimes smoked; pattern variable. Thorax hairy, brown, with lateral yellow bands edged with black. Abd. brown, shaded with black; lateral yellow spots on 3—8. App
. The biology of dragonflies (Odonata or Paraneuroptera). Dragon-flies. 344 BRITISH SPECIES [CH. Wings coloured, at least by a dark basal patch on hw. Abd. short, considerably wdened and depressed. Lobe of prothorax small. 15. L. quadrimacidata Linn, o dbd 28—29, hu- 35—36, pt 4. Wings with a yellowish-brown band along C, broadest at base; a small dark patch at nodus; a large triangular dark brown patch at base of hw; tips of wings sometimes smoked; pattern variable. Thorax hairy, brown, with lateral yellow bands edged with black. Abd. brown, shaded with black; lateral yellow spots on 3—8. App. sup. 4, pointed, itif. 2 triangular, tip slightly bifid. ? abd 28—29, hw 33—36, pt 3-5. Similar to 3, but abd. broader; apps. 3-5, leaf-Uke. Common. Apr.—Sept. 16. L. fulva MiiUer (fig. 131). <3 abd 26—27, hw 33—34, pt 2-5. Wings hyaline except for a medium-sized triangular black patch at base of hw, and short brown lines in cu oi fw and sc of hw; tips sometimes clouded. Thorax hairy, brown. Abd. of adult pale blue with terminal segments black. App. sup. 2-5, pointed; inf. 2, triangular. 2 same size as o ; wings suffused with yellowish-brown along C; tips smoky. Abd. brown with irregular dorsal black markings on 3—10; apps. 2, pointed. Local. June— Fig. 175. Wings of Orthetrum coeruhscens Fabr., ^ {Hw 28 mm.). Original. 17. L. dejyressa Linn, j abd 26—27, hw 35—37, pf 3-5. Wings hyaline, with an elongated dark brown patch at base of fiv, and a larger triangular patch at base of hw. Thorax very haiiy, browTi, with bluish or yellowish dorsal stripes. ^6rf. excessively wide and depressed; blue in adult; 3—6 with yellow lateral spots. App. sup. 2, slightly toothed beneath; inf. 1-5, shghtly notched. $ similar to 3, but abd. brown; apps. very short. Very common. Apr.—Aug. Genus X. Orthetrum Newman (fig. 175). Fw with about 12 Ax in fir, the last complete. Sectors of arc. united; / once crossed in fw, free in hw. Wings hyaline. Abd. only moderate
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