Iotarphia magna Song & Osborn & Ahn 2021, sp. n.
Creators: name: Song, Jeong-Hun
name: Osborn, Andrew W.
name: Ahn, Kee-Jeong
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Iotarphia
Iotarphia magna

description: Iotarphia magna Song & Ahn sp. n.
(Figs. 2b, 4)
Description. Length 4.0– 4.5 mm. Body black to reddish black; head black, abdomen almost black to reddish black, antennae and legs yellow, elytra yellow except for each lateral darker region (Figs. 2b and 4b). Head. Eye large, about 1.7 times as long as temples. Distance between a pair of pores longer than distance between pore and head lateral margin. Antennae about as long as head and pronotum combined; antennomere 4 longer than wide, 5–7 subquadrate, 8–10 slightly to distinctly transverse (Fig. 4a). Mouthparts. Labrum with α-sensillum about as long as ε-sensillum. Maxillary palpomere 2 about 2.8 times as long as wide, 3 about 3.0 times as long as wide. Labium with palpomere 1 about 2.5 times as long as wide, 2 about 1.3 times as long as wide, 3 slightly shorter than 1, about 2.3 times as long as wide. Mentum with 10+10 (or 10+11) macrosetae on each side of midline. Thorax. Metanotal scutum with 1 long seta and about 3–5 short setae on each side of midline. Mesoventral process rounded at apex, slightly longer than metaventral process, shorter than isthmus and metaventral process combined (Fig. 4c); isthmus distinctly shorter than metaventral process (Fig. 4c). Elytron approximately 1.8 times as long as wide (Fig. 4b), flabellum composed of about 9 setose lobes. Legs. Length ratio of tarsomeres 36:36:36:136 (front tarsus); 40:40:34:37:90 (middle tarsus); 48:48:36:36:103 (hind tarsus). Abdomen. Sternite VIII with about 6 macrosetae on each side of midline. Secondary sexual characteristics. Male sternite VIII with posterior margin apically rounded (Fig. 4e); female sternite VIII posterior margin triangularly produced apically and pointed medially (Fig. 4f). Median lobe as in Figs. 4g and 4h. Spermatheca as in Fig. 4i.
Type material. Holotype: ³, labeled as follows: “AUS: Cloudy Bay, Bruny Is, SE Tas, A.W. Osborn 10.vi.2018, QVM:2018:12:0738; HOLOTYPE Iotarphia magna Song and Ahn 2019 ”. Designed by J.-H. Song and K.-J. Ahn 2020 (deposited in QVMAG). Paratypes: 3³ 4♀, same data as holotype (3 in QVMAG and 4 in CNUIC), 3³ QVM:2018:12:0714, 0722, 0736, 0738 (2 in QVMAG and 1 in CNUIC; 4♀ QVM:2018:12:0704, 0708, 0735, 0743 (2 in QVMAG and 2 in CNUIC).
Other material. DNA voucher specimens: 2³ 3♀, Australia, Tasmania: 1³ Cloudy Bay, Bruny Is, SE Tas, A.W. Osborn 10.vi.2018, QVM:2018:12:0731, CNUIC0650; 1³, QVM:2018:12:0719, CNUIC0651; 1♀, QVM:2018:12:0728, CNUIC0648; 1♀, QVM:2018:12:0745, CNUIC0649; 1♀, QVM:2018:12:0709, CNUIC0652.
Distribution. Australia (Tasmania).
Etymology. The name of this species is formed from the Latin adjective magna meaning large, referring to the relatively large body of this species.
Remarks. See Table 5 for the similarities and differences among three Iotarphia species.
description: Published as part of Song, Jeong-Hun, Osborn, Andrew W. & Ahn, Kee-Jeong, 2021, A taxonomic review of the coastal genus Iotarphia Cameron (Coleoptera: Staphylinidae: Aleocharinae) with a description of new species based on morphological and molecular characters, pp. 417-427 in Zootaxa 4920 (3) on pages 423-424, DOI: 10.11646/zootaxa.4920.3.7, http://zenodo.org/record/4478173