Tortopus zottai (Navás), Navas

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 : 21

Tortopus zottai (Navás)

Campsurus zottai Navás 1920: 11 .

Tortopus zottai ; Domínguez 1987: 11.

Type material ( MACN): lectotype, paralectotype and 17 specimens, all male imagos from Argentina: Buenos Aires, XII-1916, A. Zotta col.

Discussion and diagnosis. this species known only from males was redescribed by Domínguez (1987). It constitutes the most Southern record of the genus. Illustrations of furcasternal protuberances ( Fig. 25 ) and genitalia ( Figs. 24, 26–30 ) are given. Male imagos can be separated from all other species of the genus by: 1) fore wing length 12.0– 12.5 mm; 2) parastyli at least 1.5 times length of its base, slightly becoming thinner towards the apex ( Figs. 28–30 ); and 3) fused basal portion of penes relatively thin, distal portions not expanded ( Fig. 24 ), becoming thinner toward apex ( Figs. 26–27 ).

Figures

FIGURES 24 – 30. Tortopus zottai, male paratype. 24, genitalia, v. v. (f 1 and f 2 = forceps segment 1 and 2, k = knob, mf = median furrow, pe = penes, sIX = ninth abdominal sternum); 25, mesofurcasternal plates (fsi = furcasternal impression, fsp = furcasternal plates); 26 – 27, details of apex of penes; 28, detail of pedestal and base of forceps, v. v.; 29, pedestal; 30, pedestal and forceps (pd = pedestal, ps = parastilus).