Juenagrion nanae, Lencioni, 2023

Lencioni, F. A. A., 2023, Analysis of Telebasis Selys, 1865 - Part I. (Odonata: Coenagrionidae), Zootaxa 5239 (4), pp. 500-520 : 510-514

publication ID	https://doi.org/ 10.11646/zootaxa.5239.4.3
publication LSID	lsid:zoobank.org:pub:5F1C330D-6344-4A7C-AD67-87F880D832F1
DOI	https://doi.org/10.5281/zenodo.7635262
persistent identifier	https://treatment.plazi.org/id/03A487DB-FFD5-FFE5-58B1-5885FB60D885
treatment provided by	Plazi
scientific name	Juenagrion nanae
status	sp. nov.

Treatment

Juenagrion nanae View in CoL spec. nov.

Fig. 11 View FIGURE 11 (♁—prothorax), Fig. 12 View FIGURE 12 (♁—app. lateral view), Fig. 13 View FIGURE 13 (♁—app. posterior view), Fig. 14 View FIGURE 14 (♁—app.), Fig. 15A View FIGURE 15 (♀ —hind lobe of prothorax), Fig. 16 View FIGURE 16 (♀ —prothorax), Fig. 17 View FIGURE 17 (penis—ectal view), Fig. 18 View FIGURE 18 (penis—lateral view), Fig. 19 View FIGURE 19 (♁, ♀ —habitus), Fig. 20 View FIGURE 20 (map— type locality), Fig. 21 View FIGURE 21 (photo of type locality); Fig. 22 View FIGURE 22 (photo of second collection site).

Holotype. ♁ ( NC 4636 ), Brazil: Mato Grosso: Querencia , córrego transição, collected in tandem with the allotype, 13° 03′ 35″ S & 52° 12′ 03″ W, 19.xii.2007, Leg. Juen, L. & Cabette, H.S.R. GoogleMaps

Paratypes. 7♁♁, 1♀: 1♁ ( NC 4637), same data as holotype (penis and appendages removed for illustration, all conserved in alcohol); GoogleMaps 1♁, l ♀ ( NC 4800 ), Brazil: Tocantins: Araguaína , rio lontra, 7° 12′ 19″ S & 48° 14′ 55″ W, 28.xii.2018, Leg. Julia S. Silva (in tandem); GoogleMaps 3♁♁ ( NC 4801–4803 ), Brazil: Tocantins: Araguaína, rio lontra, 7° 12′ 19″ S & 48° 14′ 55″ W, 28.xii.2018, Leg. Julia S. Silva. GoogleMaps 1♁ ( UFPA), Brazil: Tocantins: Araguaína, rio lontra, 7° 12′ 19″ S & 48° 14′ 55″ W, 28.xii.2018, Leg. Julia S. Silva.; GoogleMaps 1♁ ( UFNTO), Brazil: Tocantins: Araguaína, rio lontra, 7° 12′ 19″ S & 48° 14′ 55″ W, 28.xii.2018, Leg. Julia S. Silva GoogleMaps .

Allotype ♀ ( NC 4636 ) same data as holotype. GoogleMaps

Etymology. I named this species nanae (a noun in the genitive case) after Nana, nickname of Mrs. Adriana Marcilio Ponce Pasini (b. 20.i.1970), dearest friend during my youth and who I reencountered after a thirty-year gap.

Description of holotype

Head. Labrum, anteclypeus, postclypeus, genae, outer surface of mandible, postfrons up to frontal suture blue. Area in front of medial ocellus, and two diagonal bands, which connect each lateral ocellus to the base of antenna, brownish. Vertex, occiput and postocular lobes all black except for occipital bar blue ( Fig. 19A View FIGURE 19 ), antennae: missing. Labium and maxillae pale yellow. Rear of head light blue.

Thorax. Prothorax blue; pterothorax with dorsal 1/3 of mesepisternum black with green reflections, reminder blue, venter of metathorax whitish. Legs: coxae blue, femora pale bluish, tibia, tarsi, and tarsal claws pale.

Wings. hyaline with black venation, pterostigma black, quadrangular, and surmounting one cell; PX 9 in all wings.

Abdomen. S1–S6 laterally and ventrally blue, dorsally brownish, S7–S10 dark brown (almost black).

Measurements (in mm). Total length (incl. apps) 31: abdomen (incl. apps) 25, forewings 16, hindwings 15.

Description of allotype

Head. As in holotype but with a fine blue line in the area of the posterior lobe which is adjacent to the compound eye ( Fig. 19B View FIGURE 19 ).

Thorax. Prothorax as in holotype but with dorsum brownish; pterothorax as in holotype.

Wings. hyaline with black venation, pterostigma ochraceous, quadrangular and surmounting one cell; PX 9 in LFW, 10 in RFW, 8 in HW.

Abdomen. S1–S6 blue, S7–S10 reddish.

Measurements (in mm). Total length (incl. apps) 33: abdomen 27, forewings 16, hindwings 15.

Variation in paratypes. Similar color pattern in male and female. Males: total body length 28– 31, PX FW 10–11, HW 8. Female: total body length 30, PX FW 10, HW 8.

Diagnosis: Males of J. nanae are easy to distinguish from other species in the genus by the presence of the longitudinal elevated process in the middle of the posterior lobe of prothorax ( Fig. 15A–D View FIGURE 15 ), absent in the other three species. The female of J. leptocyclia is still unknown, females of J. nanae , J. igapocola and J. selaopyge can be distinguish by the shape of the posterior lobe of prothorax ( Fig. 11 View FIGURE 11 ), in J. nanae the medial part of the posterior lobe is recessed and straight ( Fig. 15A View FIGURE 15 ), while it is projected and rounded in J. selaopyge ( Fig. 15B View FIGURE 15 ) and projected and bifurcated in J. igapocola ( Fig.15C View FIGURE 15 ).

In addition to the original description, I examined specimens of the following species: J. igapocola 1♁— Brazil: Para State, Obidos municipality. Village of Curuai, 2° O′ 44″ S & 55° 18′ 11″ W, 12m asl, 31.i.1971, Leg. unknown (paratype —MNRJ—examined and illustrated in 2005); J. selaopyge 1♁— Venezuela: San Carlos de Rio Negro, 1° 55′ 21″ N & 67° 3′ 45″ W, 7–13.xi.1982, Leg. Chacon, A. & Yepez, G., (paratype —MIZA).