Librelula maradoniana, PETRULEVIČIUS, 2020

PETRULEVIČIUS, JULIÁN F., 2020, First argiolestid damselfly (Odonata: Zygoptera) from the late Palaeocene of Northwest Argentina, Palaeoentomology 3 (6), pp. 541-545 : 541-542

Librelula maradoniana sp. nov.

( Figs 1 , 2 )

Holotype. MLP 29425. Argentina, province of Jujuy, El Fuerte, latitude 24º20’ S, longitude 64º28’ W, green shales, Maíz Gordo Formation , Late Palaeocene ( Volkheimer et al., 1984; Quattrocchio et al., 1997).

Etymology. In honour to Diego Armando Maradona (El Diego) the best world football player ever. In 1986 FIFA World Cup, Maradona, the “People football player”, redefined the football in less than five minutes (https:// edition.cnn.com/ 2018/06/11 /football/world-cup-argentinaengland-1986-diego-maradona/index.html), first with the “hand of God” goal and then with “the goal of the Century”, related exquisitely by Victor Hugo Morales. In words of Emir Kusturica (https://www.youtube.com/watch?v=O8G9ytZgbM) “that match was maybe the first and the last time that there was justice in the world”. He inspired the people and many popular artistic expressions via his Maradonian way.

Diagnosis. As for the genus (vide supra).

Type locality and horizon. Maíz Gordo Formation, El Fuerte, Jujuy province, Argentina; Late Palaeocene.

Description. Wing hyaline, length 30 mm; max. width 6.6 mm; distance between nodus and pterostigma 18.8 mm; distance from base to nodus 6.8 mm (nodus situated at about 20% of wing length); from pterostigma to wing apex 1.85 mm; distance from base to arculus 3.5 mm; Ax1 and Ax2 well defined; Ax1 1.4 mm basal to arculus; no secondary antenodal crossveins; 16–17 postnodal crossveins between nodus and pterostigma, 18 corresponding postsubnodal crossveins; postnodal and postsubnodal crossveins rather well-aligned (12); pterostigma 3 mm long and max. 0.8 mm wide, not braced and covering three and a half cells; basal side of pterostigma slightly oblique, distal side very slanted; three preserved crossveins distal to pterostigma between C and RA; arculus aligned with Ax2; posterior part of arculus (basal discoidal crossvein) forming a discoidal cell basally closed, trapezoidal and free of crossveins; posterior margin of discoidal cell (MP+CuA) aligned with MP, and CuA kinked becoming slightly bended posteriorly with distal part zigzagged; origins of RP and MA approximate in arculus; CuP crossing 0.7 mm basal to arculus, where emerge CuP+AA; two rows of cells between CuA and wing margin; nodal Cr and subnodus very oblique; MP nearly straight, slightly concave posteriorly; MA barely zigzagged and ending three cells basal to pterostigma; RP3/4 1.1 mm (two cells) basal to subnodus; IR2 just distal to subnodus; RP2 8 mm and ten cells distal to subnodus; no lestine oblique vein ‘O’; two rows of cells between MP and MA four cells before ending; nine rows of cells at wing margin from MA to RP3/4; two longitudinal veins seven rows before wing margin between MA to RP3/4; two longitudinal veins five rows before wing margin between RP3/4 to IR2; two longitudinal veins four rows before wing margin between IR2 to RP2; two longitudinal veins seven rows before wing margin between RP2 to IR1; space between IR1 and RP1 narrowing from level of pterostigma to wing margin.

Figures

FIGURE 1. Habitus of Librelula maradoniana gen. et sp. nov., holotype MLP 29425 from El Fuerte (Jujuy, Argentina); late Palaeocene. A, Photograph. B, Camera lucida drawing.

FIGURE 2. Details of the wing of Librelula maradoniana gen. et sp. nov., Holotype MLP 29425 from El Fuerte (Jujuy,Argentina); late Palaeocene. A, Arculus. B, Emergence of CuP+AA. C, Nodus. D, Pterostigma.