Paraprotus atroluteus Roewer, 1912: 120 .
Type data: Syntypes: Ecuador. ‘ Columbien’ [Zamora- Chinchipe]: Sabanilla [–3.95843°, –79.04729°, 1800 m], 3 ♂ 1 ♀ (SMF RI 291, examined by photograph) .
Records: ECUADOR [Zamora-Chinchipe], Zamora Valley (Roewer, 1928).
Diagnosis: It differs from P. albithorax by having in carapace the same colour of abdomen (Fig. 29A) instead of yellow spots. Abdomen with slightly yellowish coloration in lateral margins (Fig. 29A). Tarsal counts: 7(3), 17(3)/19(3), 9, 10.
Distribution: Only known from the type locality. Eastern Cordillera real montane forest ecoregion in Zamora Chinchipe Province of Ecuador (Fig. 23).
Remarks: Although it was described from ‘Columbien ( Sabanilla)’ (Fig. 28D), the correct place is possibly ECUADOR, Zamora-Chinchipe, Sabanilla . In the description of various species, Roewer (1913; 1923) inconsistently cited Sabanilla either as being in ‘Kolumbien’ or in ‘Venezuela’. Sabanilla, in this case, probably refers to a small village called Sabanilla [–4.03333°, –79.01667°, c. 1500 m], on the old road between Loja and Zamora (Zamora-Chinchipe, southern Ecuador). A subsequent record (Roewer, 1928) reinforces our interpretation.
Although external similarity is encountered comparing the type specimens of both species of Paraprotus (Figs 29, 30), Roewer (1912: 120) made a detailed description of the coloration of P. atroluteus, remarking that dorsal scutum was mostly light rustyellow except for brown-black coloration of ocularium and ventral surface (coxae and free sternites). Then, no yellow mark is described by Roewer (1912) for P. atroluteus, which is a remarkable feature present in P. albithorax, described and illustrated by Roewer (1947: 33, pl. 12, fig. 106) and visible in Fig. 28A.