Tortopsis puella (Pictet) Pictet, 2010

Molineri, Carlos, 2010, A cladistic revision of Tor top us Needham & Murphy with description of the new genus Tortopsis (Ephemeroptera: Polymitarcyidae), Zootaxa 2481, pp. 1-36 : 27

Tortopsis puella (Pictet) New combination

Campsurus puella ( Pictet), 1843 (comb.)

Campsurus incertus Traver , in Needham et al. 1935 (syn.) Palingenia puella Pictet, 1843 (orig.)

Tortopus incertus (Traver) , in Needham et al. 1935 (syn.)

Material ( IML): 3 male imagos from USA: Florida, Liberty Co., Apalachicola R. at Hwy. 20, Bristol, 5-IX- 1972, P.H. Carlson; 7 female imagos same data except date 10-X-1973; 4 male and 6 female imagos same data but no date nor collector.

Female adult. Length (mm): body, 9.0–13.0; fore wing, 12.0–16.0; hind wing, 5.0–6.2; cerci, 5.0–6.0. Head: whitish around median ocellus, blackish between lateral ocelli, occiput with gray anastomosed marks mainly on lateral thirds. Thorax: pronotum with anterior ring widely shaded black, and posterior ring shaded grayish black on central area, lateral to this shading there is an isolated narrow gray mark, and also shaded near posterolateral corner. Wings: membrane whitish hyaline, veins whitish, except those near costa shaded gray; some females show a weak and short (1 cell) vein between R2+3 and IR, formed by the coalescence of 2 cross veins. Abdomen: terga with wide median band darker than the rest, except on tergum I whitish medially, and thin medial blackish line on terga III–IX. Sternum VIII with large sockets, the sclerotized anterior margin of the socket is somewhat sinuous ( Figs. 50–52 ) and reaches the anterior margin of the sternum; anterior and posterior margins of socket are more or less parallel; the depression delimited by the socket is elongated.

Egg. Suboval, no attachment structures. Length, 450–490 µm; width, 370–390 µm. The chorion is sculptured with small grooves.

Discussion and diagnosis. This species is known from adults of both sexes and nymphs from SE and SW USA. A short description of the female adult is presented, enumerating those characters useful in separating the female adults of this species from those of other species of the genus. Male adults and nymphs were sufficiently treated elsewhere ( Needham et al. 1935, Scott et al. 1959, McCafferty 1975, Molineri 2008). The adult stage of Tortopsis puella can be separated by: 1) fore wing length 14.0 mm (male), 12.0–16.0 mm (female); 2) wing veins dark, mainly on basal half and costal margin; 3) parastyli moderately curved; 4) penes cylindrical; 5) female parastylus receptors large, elongated, with sinuous medial margin ( Figs. 50–52 ); 6) female head not shaded black behind median ocellus; 7) female pronotum color pattern similar to other species, but with a gray band near posterolateral corner.

Figures

FIGURES 44 – 52. Tortopsis, female imago. 44, T. obscuripennis, fore wing. T. sarae: 45, mesofurcasternum; 46, abdominal sternum VIII, v. v.; 47, same, l. v. T. obscuripennis: 48, abdominal sternum VIII, l. v. T. primus: 49, abdominal sternum VIII, l. v. T. puella: 50, abdominal sternum VIII, v. v.; 51 – 52, same, l. v.