Dicharax dalingensis (Godwin-Austen, 1914)

Dicharax dalingensis (Godwin-Austen, 1914) View in CoL

Fig. 62A–E

Alycaeus dalingensis Godwin-Austen, 1914: 338–339 View in CoL , pl. 134 figs 3, 3a–c.

Alycaeus ( Dicharax) dalingensis View in CoL – Gude 1921: 246.

Dicharax (?) dalingensis View in CoL – Páll-Gergely et al. 2020: 85 View Cited Treatment .

Type material examined

INDIA • 7 syntypes ( Fig. 62A–E); Rechila Pk, Sikkim; W. Robert leg.; NHMUK 1903.7 About NHMUK .1.1251 .

Type locality

“Rechila Peak, Daling District, on Sikkim and Bhutan Boundary ( 10,300 ft.)”.

Differential diagnosis

The most similar species are D. lenticulus ( Godwin-Austen, 1874) , D. nongtungensis (Godwin-Austen, 1914) and D. politus (W.T. Blanford, 1865) , due to the smooth shell surface and the long, inflated R3 swelling. Dicharax lenticulus is larger and has a more depressed shell. Dicharax nongtungensis is smaller, more depressed, and has a more strongly expanded outer peristome. Lastly, D. politus is much more depressed, its R2 ribs are separated (R2 surface is smooth in D. dalingensis ), and has a more inflated R3 swelling. See also under D. ganeshaiahi sp. nov. and D. nattoungensis (Godwin-Austen, 1914) .