Fylgia amazonica lychnitina DeMarmels, 1989

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 : 67

Fylgia amazonica lychnitina DeMarmels, 1989

Figures 65-70 (larva)

Material. 5♂, 2♀ (adults), 1♂ larva (ultimate instar), Base Camp .

Larva. Small, dark, with some yellow spots on the pterothorax. Head much broader than long, with almost straight occipital margin ( Fig. 65 ), Antennae as illustrated ( Fig. 66 ); segment 6 the longest, dark basally; apical segment spindle-shaped with pointed tip. Hinge of labium reaching second coxae. Labium as in Figs. 67-68 . Hind margin of pronotum laterally somewhat protru· ding, and spinous. Legs moderately long, femora with two dark rings. Wing sheaths reaching to end of abdominal segment 5. Abdomen with dorsal hooks on segments 3-9 and with long lateral spines on segments 8 and 9 ( Fig. 69 ). Anal pyramid as in Fig. 70 .

Measurements. Total length (excl. lateral spi· nes) 9.5; maximum width of head across compound eyes 3.0; hind femur 3.0; hind tibia 3.6.

Remarks. The larva was found between leaf lit. ter in the pool described under Acanthagrion apicale (see above) Here, adult males as well as an ovipositing female were observed. The larva when disturbed feigns death. The unique specimen found was reared to emergence, but died during transformation. Therefore it can be associated with Fylgia kirby only by supposition. Ho. wever, small size and peculiar features practically exclude any other genus.

Figures

Plate VIII: Figures 65-70. Fylgia amazonica lychnitina, male ultimate instar larva. (65) larva, dorsal view; (66) left antenna; (67) labium, ventral view; (68) apical portion of labium with right palp, dorsal view; (69) skyline of abdomen, left lateral view; (70) anal pyramid, dorsal view.