Ceresium indignum Holzschuh, 2011

Ceresium indignum Holzschuh, 2011 View in CoL Figs 12, 24A- K View Fig

Ceresium indigum Holzschuh, 2011 View in CoL : type locality “ Malaysia, Sabah, Trus Madi ”.

Specimen examined. 1 Ƌ, “N. Sumatra, Bandar Putah, Diehl View in CoL , 1. III-84” (ZSM).

Description of genital organs

Genital organs as in Figure 24A- I View Fig . Median lobe about 9 / 20 the length of abdomen; bullet-shaped in dorsal view, though a little emarginated in the basal half; arcuate in profile; dorsal plate dehiscent in basal 3 / 5; ventral plate longer than dorsal plate, dehiscent in basal 3 / 4; median struts narrow. Tegmen about 7 / 8 the length of median lobe. Parameres about half the length of tegmen; apicad gradually narrowed; dehiscent in apical 1 / 4; clothed with long setae on apices.Ejaculatory duct complex as in Figure 24F- H View Fig ; slender; apical sternite dehiscent, with each lobe bent downward and hooked, with a pair of lateral projections; basal sclerite somewhat like a basal ring of tegmen, arcuate in lateral view. 8 th sternite as in holotype. 8 th tergite as wide as the corresponding sternite, sub-trapezoidal, clothed with hairs as in holotype.

Distribution. Borneo; Malay Peninsula; Sumatra (new record).

Comparative notes. The examined specimen lacks those sparse, long, standing hairs of holotype on the underside and elytra, and its 8 th tergite is trapezoidal in outline instead of rectangular. Otherwise, it well corresponds to the holotype regarding habitus and genital organs. Similarities in important characteristics outweigh by far those few deviations. The 8 th sternite is identical, in particular. Thus it should be identified as a local form of C. indigum , without reaching the status of sub-species.

Remarks. The examined specimen was discovered among “indet.” specimens in “Hüdepohl Collection” (ZSM); with a label “ Examnes undet.”.