Telebasis lenkoi, Angelo B. M. Machado, 2010

Angelo B. M. Machado, 2010, Seven new species of Telebasis from Brazil (Odonata: Coenagrionidae), Zootaxa 2384, pp. 53-64 : 57-58

Telebasis lenkoi sp. nov.

Figures 2, 8 , 15 , 24 , 31

Etymology: Named lenkoi in honor of my good friend the entomologist Karol Lenko who collected the type series and has provided me with many other valuable Odonata including another species of Telebasis described herein.

Type specimens. Holotype ♂ and Allotype ♀, BRAZIL, Mato Grosso State, Utiariti, 13º 02´S, 58º 17´W, 400m, vii-1961, K. Lenko leg.; paratypes 3 ♂ and 3 ♀♀, same data as holotype. Types deposited in ABMM; one ♂ and a ♀ paratypes in RWG; one ♂ and a ♀ paratypes in FAAL.

Description. Male holotype. Head. Labium yellow, genae, base of mandibles light orange, labrum orange; anteclypeus, postclypeus, antefrons, and area anterior to median ocellus orange; upper part of head black with pale diagonal band between lateral ocellus and antennal base, occipital bar orange; rear of head predominantly yellow, with an isolated large black latero-dorsal spot. Thorax. Prothorax with pronotum greyish orange, propleuron whitish yellow; pterothorax greyish orange except for yellow-white metapleuron and poorly defined stripe on posterior part of mesepimeron. Legs grayish orange except for whitish yellow flexor surfaces of femora. Wings hyaline. Px in FW 9–10, in HW 8; R3 arising near Px 6 in both wings; anal vein separating from wing margin at a distance proximal to CuP that is 1.5 length of CuP in FW and slightly basal to it in HW; pterostigma yellow, surmounting one cell. Abdomen. S1–S3 orange; S4–S6 dorsally dark brown, laterally brownish orange; S7–S10 dorsally red, laterally light orange. Appendages orange.

Structural characters. Hind prothoracic lobe rounded with a shallow median concavity. Segment S 9 in dorsal view dilating distally ( Fig. 31 ). Cercus in lateral view ( Fig. 15 ) slightly longer than S10, 1.6 longer than paraproct, apex notched, the ventral margin simple, slightly concave with ventro-basal tooth not visible. In medio-dorsal view ( Fig. 24 ) with an oval smooth surface, and with a baso-ventral and apical tooth. Paraproct acuminate ( Fig. 15 ). Penis ( Fig. 8 ) with terminal and inner folds well-developed, apical segment in ectal view with the borders subparallel and a pair of distal lateral lobes directed latero-distally.

Dimensions (mm). Abdomen 22.3; HW 16.1

Description. Female allotype.

Head. As in male. Thorax. Prothorax and pterothorax, and legs, as in male but mesopleuron more vivid orange. Wings hyaline, Px in FW 10, in HW 9. R3 arising near Px 5 in both wings; anal vein separating from wing margins at a distance proximal to CuP that is twice the length of CuP in FW and 1.5 in HW; pterostigma yellow, surmounting one cell. Abdomen. S1–S2 dorsally orange, laterally yellowish white; S3 dorsally orange, laterally yellowish orange; S4–S6 dorsally black, laterally yellow with latero-apical yellow rings; S7– S10 dorsally dark brown, laterally orange red. Ovipositor valves yellowish orange.

Structural characters. Hind prothoracic lobe with well-developed lateral and median lobes, the median subrectangular with a shallow dorsal concavity ( Fig. 2 ).

Dimensions (mm). Abdomen 13.9; HW 18.0

Remarks. T. lenkoi , T. racenisi and T. pareci are unique among the genus in possessing wing stalked well before level of CuP (as in RG Fig. 11 c) and, in male, an apically notched cercus when viewed laterally ( Figs.

15, 18, 20). Penis ( Fig. 8 ) as for T. racenisi ( Fig. 12 ). Male keys to couplet 2. of Key M-4 of Garrison (2009) and is modified to accomodate this species and its similar congener, T. pareci , as follows:

2. Apical portion of S9 about as wide as remainder of abdomen ( Fig. 33 ), labrum blue, rear of head mostly black at least on upper half (as in RG Fig. 1 f); Venezuela, Peru, Mato Grosso States, Brazil..................................... T.racenisi

2´. Apical portion of S9 all of S10 about 2x as wide as remainder of abdomen ( Figs. 31, 32 ), labrum orange or light orange, rear of head mostly pale with an isolated large black spot lateral to occipital foramen (similar to RG Fig. 1 e); Mato Grosso State, Brazil.............................................................................................................................................3

3. Cercus in lateral view with outer ventral margin strongly concave, medial ventral margin with a basal tooth, ventral branch of apex directed ventrally ( Fig. 18 ); Mato Grosso State, Brazil.......................................................... T. pareci

3´. Cercus in lateral view with the ventral margin linear, no ventro-basal tooth, ventral branch of apex directed posteriorly ( Fig. 15 ); Mato Grosso State, Brazil......................................................................................................... T. lenkoi

Female of T. lenko i will key to T. racenisi in Key F-5 of Garrison but differs by labral coloration (orange in T. lenkoi , blue in T. racenisi ) and coloration of rear of head (mostly pale with an isolated large black spot lateral to occipital foramen, similar to RG Fig. 1 e, in T. lenkoi , mostly black at least on upper half,as in RG Fig. 1 f, in T. lenkoi ).

Garrison (2009: 91) recorded Telebasis racenisi from Goiás and Mato Grosso States, Brazil and mapped both based on Lencioni (2006: 215) and personal communication. In order to make Garrison's paper more complete, Lencioni provided the following data for these specimens: Goiás State: Fazenda Olho D'agua, outside of Parque Nacional de Emas, 17 50' S, 52˚39' W, 14-x-1982, leg. N.D. Santos, 5 ♀♀; Mato Grosso State: Rio São Lorenço, São Vicente, 15 49' S, 55˚24' W, 22-vii-1983, leg. L. F. Reys, 3 ♂. Garrison had not seen these specimens which were probably identified from material in the MNRJ. In light of the occurrence of two new species of this group from Mato Grosso State coupled with my examination of bona fide T. racenisi from Mato Grosso State, Diamantino 14º 25´S, 56º 27´W, Garrison's records of T. racenisi should be reexamined as they might represent either T. lenkoi or T. parecei .

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.

FIGURES 31 – 33. dorsal view of male abdomen S 8 – S 10 and cerci (Fig. 33 by RW Garrison).