Diacamma pallidum ( Smith, 1858 )

Diacamma pallidum ( Smith, 1858) View in CoL

Material examined. Bukit Timah Nature Reserve , 13 Dec 1995, H.K. Lua et al. leg., NS 212C, ZRC _ ENT00000352 View Materials ; same locality as previous, Hindhede Drive, 25 Dec 1989, H.K. Lua leg., ZRC _ ENT00000241 View Materials ; males and workers, National University of Singapore campus (Clementi/Kent Ridge, multiple sites), Apr-Sep 2015, M.S. Foo & W. Wang leg., malaise trap, ZRC _BDP (multiple); Upper Peirce Reservoir, 10 Jan 2014, Sk. Yamane leg., SG14-SKY-44, ZRC _HYM_0000484 .

Material not physically examined. Unknown.

Literature. Wang et al. (2018a).

Localities. Bukit Timah Nature Reserve; National University of Singapore campus (Clementi/ Kent Ridge); Upper Peirce Reservoir.

Habitat/Ecology. This species was found in both mature and young secondary forests broadly variable levels of disturbance and degradation, including disturbed secondary forest fragments in urban or semi-urban settings. In contiguous mature secondary forest, nests were found in rotting wood. Male alates were also collected from malaise traps set up in cultivated grassy scrub in urban settings.

Remarks. Most verified records of this species comprise of males collected via malaise traps; the original description of the species by Smith (1858) was also only of the male. This species is often assumed to be D. rugosum at first glance, but differs from the latter both morphologically (differences may only be visible under the microscope) and in terms of overall size — D. pallidum is generally smaller in size relative to D. rugosum .