Erythrodiplax amazonica Sjostedt, 1918

DeMarmels, Jurg, 1992, Dragonflies (Odonata) From The Sierras Of Tapirapeco And Unturan, In The Extreme South Of Venezuela, Acta Biologica Venezuelica 14 (1), pp. 57-78 : 66

Erythrodiplax amazonica Sjostedt, 1918

Figures 61-64 (larva)

Material. 1♂. 1♀ (reared from ultimate instar larvae). Tamacuari .

Larva. Uniformly brown, hairy, with spiny tibiae ( Fig. 61 ). Eyes bulging; occipital margin slightly concave; antennae short ( Fig. 62 ). Labium reaching backwards to behind first coxae; labial palp without crenations; 11 pa1pa1 setae with some additional small setae near base; 18 mental setae ( Fig. 63 ). Femora with two dark cross-bands; tibiae, specially third pair, beset with long spiniform hairs. Wing sheaths surpassing fifth abdominal segment, with long hairs along dorsal keel. Abdomen hairy, but lacking lateral or dorsal spines. Anal pyramid as in Fig. 64 .

Measurements. Total length 14.0; greatest width of head 4.5-4.7; hind femur 4.7; hind tibia 6.0-6.2.

Remarks. While searching for frogs in large terrestrial bromeliads, Dr. Helmut Magdefrau from the Bayrische Staatssammlung, Munich (Germany), found the two ultimate instar larvae, each in a separate specimen of bromeliad. Both adults emerged about a week later and stayed alive for two days. Adult male and female look similar, with a pale yellow middorsal stripe along the carina of the black brown mesepisterna, and with an orange abdomen.

Measurements. Total length (incl. anal appendages) 32.5 (♀ 34.5); hind wing 27.0 (♀ 25.5).

Figures

Plate VII: Figures. 58-60. Anatya guttata, male anal appendages, left lateral view. (58) "normalis" form; (59) "guttata" form (both Base Camp); (60) intermediate specimen (Venezuela, Tachira, La Fria). Figures 61-64. Erythrodiplax amazonica, male ultimate instar exuviae (61), Exuviae, dorsal view; (62) left antenna; (63) labium with right palp, dorsal view; (64) anal pyramid, dorsal view