Tortopsis andaki, Molineri & Dias & Zúñiga, 2021

Molineri, Carlos, Dias, Lucimar G. & Zuniga, Maria del Carmen, 2021, New insights into the phylogeny of Tortopus Needham and Murphy and Tortopsis Molineri (Ephemeroptera, Polymitarcyidae) with description of three new species, Arthropod Systematics & amp; Phylogeny 79, pp. 151-170 : 151

publication ID	https://dx.doi.org/10.3897/asp.79.e62735
publication LSID	lsid:zoobank.org:pub:41405225-2BB3-4048-A629-03AF1569C616
persistent identifier	https://treatment.plazi.org/id/DFE52BBC-7153-4EA3-89B5-403D069BF5EE
taxon LSID	lsid:zoobank.org:act:DFE52BBC-7153-4EA3-89B5-403D069BF5EE
treatment provided by	Arthropod Systematics & Phylogeny by Pensoft
scientific name	Tortopsis andaki
status	sp. nov.

Treatment

Tortopsis andaki sp. nov. Figs 27-32 View Figures 27–32 , 33-40 View Figures 33–40 , 41-52 View Figures 41–52

Type material.

Holotype male imago ( CEBUC) from Colombia, Caquetá, Curillo, río Caquetá, 220 m, 01°01 ’44” N; 75°55 ’9” W, 20.ix.2018, LG Dias, MC Zúñiga, B Toro, JP Chaux and C Molineri cols. Paratypes: 14 male and 5 female imagos (IBN). Paratypes: 10 male 5 female imagos and 1 nymph ( CEBUC); 10 male and 2 female imagos ( MUSENUV), same data as holotype.

Diagnosis.

Tortopsis andaki sp. nov., known from imagos of both sexes and nymph, can be distinguished from all other species of the genus by: In adults, 1) fore wing length 9.2-9.6 mm (male), 9.5-9.7 mm (female); 2) wings hyaline slightly tinted with purplish gray, veins purplish gray; 3) parastylus curved dorsally, more markedly on apical third, with a longitudinal ventral furrow (Figs 33-34 View Figures 33–40 ); 4) penis slender, apical spine rounded and flattened (Figs 36-38 View Figures 33–40 ); 5) parastyli receptors on sternum VIII with V-shaped sockets (Figs 39-40 View Figures 33–40 ); 6) head shaded gray among ocelli, occiput with small gray marks (Fig. 27 View Figures 27–32 ). The nymphs are characterized by: 1) mandibles with 7 stout small spines on inner margin of tusk see arrows in Fig. 44 View Figures 41–52 ; 2 View Figures 1–6 ) occiput whitish without gray markings (Fig. 31 View Figures 27–32 ); 3) wingbuds completely whitish (Fig. 32 View Figures 27–32 ).

Male imago. Length (mm): body, 10.8-11.0; fore wing, 9.2-9.6; hind wing, 4.0; foreleg, 4.9-5.0; cerci, 25.0-26.0. General coloration whitish shaded dorsally with light purplish gray (Figs 27 View Figures 27–32 ). Head. Whitish shaded with light brownish gray among ocelli and on scape and pedicel, flagellum hyaline. Thorax. Pronotum hyaline shaded with purplish gray dorsally as in Fig. 27 View Figures 27–32 . Mesonotum whitish yellow shaded with purplish gray along medioparapsidal sutures and contiguous area, medial zone paler. Metanotum whitish yellow shaded gray dorsally. Thoracic pleura and sterna whitish. Legs whitish shaded with light purplish gray on fore tibia and fore tarsi. Wings: Membrane hyaline very lightly tinted with purplish gray, longitudinal and cross veins purplish gray. Abdomen. Translucent white, shaded slightly but extensively with purplish gray on terga, including medial area; some markings are darker (Fig. 27 View Figures 27–32 ) and a thin medial dark line is present along most terga; terga VIII-X shaded with darker gray. Abdominal sterna whitish; sternum IX shaded very slightly with gray on median area. Genitalia (Figs 28-29 View Figures 27–32 , 33-38 View Figures 33–40 ): whitish except apex of parastylus yellowish; parastylus curved dorsally more markedly on apical third (in lateral view, Figs 28 View Figures 27–32 and 34-35 View Figures 33–40 ) and with a longitudinal ventral furrow along its entire length (Fig. 33 View Figures 33–40 ); forceps and penis translucent white, shaded very slightly gray on forceps; penis slender, spine at apex of penis rounded and flattened (Figs 36-38 View Figures 33–40 ). Caudal filament whitish translucent.

Female imago. Length (mm): body, 10.0-10.1; fore wing, 9.5-9.7; hind wing, 3.9-4.0; cerci, 3.0. General coloration as in male but shading more strongly marked. Head black between ocelli, with small light gray marks on occiput. Wings membrane hyaline slightly tinged with whitish yellow, veins brownish. Abdomen shaded with gray on terga. Parastyli receptors on sternum VIII with sockets (Figs 39-40 View Figures 33–40 ) with sinuous lateral margin and acute distal corner (V-shaped).

Nymph (mature female). Length: body, 17.0 mm. General coloration yellowish white shaded with gray dorsally (Fig. 30 View Figures 27–32 ). Head. Whitish shaded with gray among ocelli, occiput completely white without marks (Fig. 31 View Figures 27–32 ). Antennae and mouthparts whitish except apex of tusks brownish, and spines yellowish. Finger-like gill present near base of maxillae (Figs 47-48 View Figures 41–52 ). Mandibular tusks with 7 small stout spines on inner margin, basal to subdistal tubercle (see arrows in Fig. 44 View Figures 41–52 ); outer margin of tusk with row of 16-17 stout spines (Figs 42-44 View Figures 41–52 ). Thorax. Pronotum, anterior ring shaded gray widely including the anterolateral pointed projections, posterior ring as in Fig. 30 View Figures 27–32 , both with a median pale line. Meso- and metanotum with gray and brown marks, lighter on median area; wing buds whitish, longitudinal veins hyaline, except at the basal region, with the anal and costal margins brownish. Thoracic pleura and sterna whitish. Legs whitish, with yellowish setae and apex of tarsal claws yellowish (Figs 49-52 View Figures 41–52 ). Abdomen. Abdominal color pattern as described for the adults (Fig. 30 View Figures 27–32 ). Gills: vestigial gills I translucent; gills II-VII well developed, formed by a pair of large whitish lamellae, the outer (dorsal) lamellae of each pair is shaded with gray on a medio longitudinal band (Fig. 30 View Figures 27–32 ), the inner (ventral) lamellae of each pair present only a thin brownish line along trachea. Caudal filaments yellowish white.