Dicharax cucullatus (Theobald, 1870)

Fig. 36A–J

Alycaeus cucullatus Theobald, 1870: 396–397, pl. 18 fig. 2.

Alycaeus davisi Godwin-Austen, 1914: 408, pl. 148 figs 9, 9a.

Alycaeus cucullatus – Sowerby 1877: pl. 2, species 12. — Godwin-Austen 1914: 407, pl. 155 fig. 5.

Alycaeus (Dicharax) cucullatus – Kobelt 1902: 367–368. — Gude 1921: 244–245.

Alycaeus (Chamalycaeus) davisi – Gude 1921: 226.

Dicharax cucullatus – Páll-Gergely et al. 2020: 57. — Jirapatrasilp et al. 2021: 4, figs 2–3, 4a–b, 5a, 6h (treated D. davisi as a junior synonym).

Dicharax davisi – Páll-Gergely et al. 2020: 58.

Type material examined

MYANMAR • 2 syntypes of D. cucullatus; Shan States; NHMUK 1888.12.4.951-952 • 4 syntypes of A. davisi; Shan States; Woodthorpe leg.; NHMUK 1903.7.1.1630 .

Type localities

“Shan States” ( A. cucullatus); “ Siam and Shan boundary” ( A. davisi).

Differential diagnosis

The most similar species is D. ochraceus, which is smaller, and has more widely-spaced R2 ribs (Jirapatrasilp et al. 2021). See also under D. digitatus .

Remarks

This is a variable species regarding the aperture shape and the height of R3 swelling (see Jirapatrasilp et al. 2021).