A new species of Iotarphia Cameron (Coleoptera, Staphylinidae, Aleocharinae) from Tasmanian seacoasts, Australia

Abstract Iotarphia rufobrunnea Lee & Ahn, sp. n. is described from Tasmania. The new species is compared with another species of the genus, Iotarphia australis Cameron. A description, habitus photograph and illustrations of the diagnostic characters are provided.


Introduction
While working on aleocharine beetles collected by the second author from the eastern and southern seashores in Tasmania, Australia, we found specimens very similar to the athetine genus Iotarphia Cameron. After detailed examination of the specimens and comparison with Iotarphia australis Cameron (type species of Iotarphia), we concluded that these specimens represent a new species of the genus.
The athetine genus Iotarphia and its single described species have been recorded only in a "maritime habitat" from New South Wales and from Tasmania, both in Australia (Cameron 1943;Frank and Ahn 2011). Recently, Lee and Ahn (2015) synonymized the genus Psammopora Pace under Iotarphia. Little is known about their biology (Frank and Ahn 2011). In this paper, we provide a description, habitus photograph and line drawings of diagnostic characters of a new species of the genus Iotarphia.

Method
Descriptive terms used here follow Sawada (1972), but we followed Ashe (1984) in some cases, particularly for mouthparts, to reduce confusion.
Etymology. Named from the Latin rufobrunnea meaning "reddish brown", which refers to the elytra color.
Distribution. Bruny Island, at both Lighthouse Bay and Coal Point (refer to map below), Tasmania, Australia (Fig. 13).
Remarks. This species is similar to I. australis, but can be distinguished by the characters provided in Table 1 and the shape and structure of the aedeagus. The specimens of the new species were collected on Bruny Island from (i) an entirely sandy substrate just into the supra-littoral zone at Coal Point (geographical coordinates: 43.34211°S and 147.32178°E) and (ii) from a sandy substrate in which some small rocks were present within the littoral zone at Lighthouse Bay (geographical coordinates: 43.48616°S and 147.15022°E).
The description of the new species within the present paper brings the total number of coastal Staphylinidae species in the Tasmanian fauna to five: Iotarphia australis (= Psammopora delittlei Pace), Iotarphia rufobrunnea Lee & Ahn, sp. n., Teropalpus pictipes (Lea), Cafius pacificus (Erichson), and Remus sericeus (Holme). about as wide as long slightly transverse Mesoventral process shorter than metaventral process longer than metaventral process Meso-and metaventral processes contiguous separated for GIS assistance. In addition we thank Bernard Edwards, Ranger and Scott Thornton, Field Officer, both of the Tasmanian Parks and Wildlife Service Bruny Island Field Centre, for permission to work on the island and to collect the specimens described herein. Finally, we express our sincere appreciation to the Plomley Foundation for awarding the research grant (to AWO) that supported the field work that subsequently led to the collection of the specimens described herein. This work was partially supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2016R1D1A1B03930178).