Abstract
The cervicornis species group of Taumacera Thunberg, 1814, endemic to Sri Lanka, is revised. Seven species, including three species new to science, are recognized: Taumacera cervicornis (Baly, 1861), T. lewisi (Jacoby, 1887), T. mirabilis (Jacoby, 1887), T. unicolor (Jacoby, 1887), T. adamskii sp. nov., T. maskeliya sp. nov., and T. sigiriya sp. nov. The representatives of this group are characterized by pectinate antennomeres and by 12-segmented antennae. Antennomeres XI and XII are firmly fused in most species, separated by a distinct suture; however, in T. cervicornis, antennomere XII appears to be moveable. Color photographs of habitus, body details, and aedeagi as well as female genitalia are presented.
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