Aktassiinae Pritykina, 1968

Fan, Guijun, Liu, Peihan, Nel, André, Jarzembowski, Edmund A., Xiao, Chuantao & Zheng, Daran, 2024, Discovery in Burmese amber of the youngest-known aktassiid dragonfly (Odonata: Anisoptera), Zootaxa 5424 (4), pp. 497-500 : 498

Subfamily Aktassiinae Pritykina, 1968 (sensu Nel et al., 1998)

Genus and species undetermined

( Figs 1–2 )

Holotype. Specimen NIGP203639 , deposited in the Nanjing Institute of Geology and Palaeontology , Chinese Academy of Sciences, Nanjing, China.

Locality and horizon. Hukawng Valley, Kachin Province, Myanmar; lower Cenomanian, lowermost Upper Cretaceous.

Description. A fragment of the mid part of a wing, apparently hyaline. Length of fragment 16.5 mm, width 14.0 mm; very broad area between RP1 and IR1 present with more than nine rows of cells and several secondary longitudinal veins in-between; IR1 smoothly curved; 14-15 rows of cells between IR1 and RP2 with at least one secondary longitudinal vein in-between; up to six rows of cells in area between RP2 and IR2; up to six rows of cells in area between IR2 and Rspl; Rspl zigzagged; more than seven rows of cells between Rspl and RP3/4.

Figures

FIGURE 1. Photograph of general habitus, specimen NIGP203639.

FIGURE 2. Line drawing showing wing venation of specimen, specimen NIGP203639.