Telebasis celiovallei, Angelo B. M. Machado, 2010

Angelo B. M. Machado, 2010, Seven new species of Telebasis from Brazil (Odonata: Coenagrionidae), Zootaxa 2384, pp. 53-64 : 54

Telebasis celiovallei sp. nov.

Figures 6 , 13 , 22

Etymology. Named celiovallei in honor of my good friend and colleague the zoologist and environmentalist Célio Murilo de Carvalho Valle who collected this species at Carajás.

Type specimens: Holotype ♂, BRAZIL, Pará State, Carajás, Serra Norte (at Lake Canga), 2° 57' S, 51° 52' W, 14 m, 10-viii-1978, Célio M.C. Valle leg., semiteneral. Paratypes: 3 teneral ♂, same data as holotype. Holotype and paratypes deposited in ABMM and one paratype in RWG.

Description. Male holotype.

Head. Labium yellow, labrum grayish orange, face brownish orange, upper part of head in front of median ocellus brown with an arciform pale yellow band between antennal base. Remainder of upper part of head dark metallic green with diagonal band between lateral ocellus and antennal base and occipital bar orange yellow. Dorsal half of head laterally black, medially light brown; ventral half yellowish brown.

Thorax. Prothorax: Pronotum orange yellow with a pair of greyish C-shaped markings on median lobe, propleuron light brown; pterothorax with mesepisternum yellowish orange with metallic brown (most probably metallic black in fully adult specimens) stripe on medial 0.30, middorsal carina brown, mesepimeron yellowish orange, metapleuron and legs orange yellow. Wings hyaline. Px in FW 9, in HW 8. R3 arising near Px 5, in FW, near Px 4 in HW. Anal vein separating from the wing margin at Ac. Pterostigma light brown surmounting one cell.

Abdomen. S1–S2 and proximal 1/4 of S3 yellow, remainder of S3 and S4–S5 orange red, S6–S8 orange yellow, S9–S10 and cercus orange red; paraproct orange yellow.

Structural characters. Hind prothoracic lobe rounded with a very shallow medial concavity; S 9 in dorsal view dilating distally; cercus longer than S10, subequal to paraprocts, in lateral view with the apex twisted medially ( Fig. 13 ). In medio-dorsal view ( Fig. 22 ) with an arcuate keel more pronounced dorso- and anteroventrally, with one antero-medially directed apical tooth; antero-ventral extremity of arcuate keel slightly dilated ( Fig. 22 ) and separated from cercal surface; penis trumpet-shaped constricted at base ( Fig. 6 ).

Dimensions. Abdomen 21.4; HW 15.7

Remarks. T. celiovallei has a unique combination of characters that allows for its identification: i.e. cercus elongated, without ventral teeth, in lateral view ( Fig. 13 ) with the apex twisted medially and no seam, in medio-dorsal view ( Fig. 22 ) with an arcuate keel and an C-shaped apical tooth directed antero-medially; paraproct concave; penis trumpet-shaped constricted at base ( Fig. 6 ). By having the rear of head mostly pale T. celiovallei keys to M-5 Garrison (2009) in which the following couplet may be inserted:

1.5 Cercus in lateral view with the apex twisted ( Fig. 13 ), in medio-dorsal view provided with an arcuate keel ( Fig. 22 ); Pará State, Brazil....................................................................................................................................... T. celiovallei 1.5´. Cercus in lateral view with the apex straight, in medio-dorsal view with no arcuate keel.......................................... 2

Characters of the penis ( Figs. 6 , RG 14o), head coloring, and medial cercal morphology place T. celiovallei near T. simulata Tennessen , but the acute ventro-basal tooth of the cercus typical of T. simulata ( Fig. 30 ) is, in T. celiovallei , rounded ( Fig. 22 ). The distal arcuate keel of the cercus in medio-dorsal view in T. simulata has two teeth ( Fig. 30 ); in T. celiovalei , there is one ( Fig. 22 ).

Figures

FIGURES 1 – 12, female thorax dorsal (Figs. 1, 3 – 4) and dorso-lateral (Fig. 2) views, and penis in ectal (above) lateral (below) views of Telebasis (Figs. 5, 12 from Garrison 2009).

FIGURES 13 – 21. male anal appendages of Telebasis, lateral view (Figs. 20, 21 from Garrison 2009).

FIGURES 22 – 30. male anal appendages of Telebasis, lateral view.