Dicharax obscurus (Godwin-Austen, 1914)

Fig. 31F–J

Alycaeus obscurus Godwin-Austen, 1914: 378–379, pl. 154 figs 9, 9a.

Alycaeus (Dicharax) obscurus – Gude 1921: 263.

Chamalycaeus (Dicharax) obscurus – Ramakrishna et al. 2010: 64.

Dicharax (?) obscurus – Páll-Gergely et al. 2020: 100.

Type material examined

INDIA • 1 syntype (Fig. 31F–J); Cherra Poonje; Godwin-Austen leg.; NHMUK 1913.3.16.8 .

Type locality

“Cherra Poonje”.

Differential diagnosis

The most similar species in this species group is D. jaintiacus, which has a more globular shell, possesses more widely-spaced R1 ribs, and a less expanded outer peristome. Species of the Dicharax species group 7 are similar to D. obscurus in the formation of the R3 swelling, but the distance between their two peristomes is smaller and their R3 swelling is more inflated and usually have depressions and/or grooves.