Porongurup, Choi, Su-Ho, Chandler, Donald S. & Park, Jong-Seok, 2019

Choi, Su-Ho, Chandler, Donald S. & Park, Jong-Seok, 2019, Porongurup, a new genus of pselaphine staphylinid beetles from Western Australia (Coleoptera, Staphylinidae, Pselaphinae, Faronitae), ZooKeys 881, pp. 13-22 : 15

publication ID	https://dx.doi.org/10.3897/zookeys.881.39535
publication LSID	lsid:zoobank.org:pub:175E7C92-A110-4464-80D4-FA0EAC3473B1
persistent identifier	https://treatment.plazi.org/id/362C6CA0-A334-4897-927B-B40A527B0118
taxon LSID	lsid:zoobank.org:act:362C6CA0-A334-4897-927B-B40A527B0118
treatment provided by	ZooKeys by Pensoft
scientific name	Porongurup
status	gen. nov.

Treatment

Porongurup View in CoL gen. nov.

Type species.

Porongurup angulatus sp. nov., herein designated.

Diagnosis.

Members of this genus are easily separated from other faronite genera by the following combination of characters: rostrum with linear frontal sulcus ( Fig. 3A View Figure 3 ); pronotum with median antebasal foveae, outer basolateral foveae, and inner basolateral foveae; prosternum with lateral mesocoxal foveae, and median procoxal foveae ( Fig. 3B View Figure 3 ); mesoventrite with lateral mesosternal foveae and promesocoxal foveae ( Fig. 3C View Figure 3 ); metaventrite with lateral metasternal foveae and lateral mesocoxal foveae ( Fig. 3C View Figure 3 ); length of abdominal tergite and visible sternite VI approximately twice as long as V ( Fig. 1 View Figure 1 ); species only known from Western Australia ( Fig. 5 View Figure 5 ).

Description.

Small body size, 1.6-2.0 mm. Body yellowish to reddish brown. Head. Head with distinct narrow frontal sulcus, and distinct vertexal foveae ( Fig. 4 G–L View Figure 4 ). Male head triangular, broader than long, widest across eyes. Female head more rounded than that of male ( Fig. 4 G–L View Figure 4 ). Thorax. Prosternum broader than long, widest at midpoint of prosternum ( Fig. 3B View Figure 3 ). Abdomen. Length of abdominal segment VI approximately two times longer than V ( Fig. 1 View Figure 1 ). Aedeagus. Median lobe of male genitalia slender, apically sharp and narrow. Phallobase rounded. Parameres symmetrical and slender with more than five setae apically ( Fig. 2 View Figure 2 ).

Etymology.

Porongurup gen. nov. is named for Porongurup National Park, where one of the species was collected. Gender: Masculine.

Distribution.

Western Australia.

Comments about secondary sexual characters.

Male specimens have larger eyes than females ( Fig. 4 G–L View Figure 4 ). The males of Porongurup clarkei sp. nov. and P. tenuis sp. nov. have longer elytra and fully developed hind wings, but female specimens have the elytra almost half the size of those of the males, and the hind wings are reduced ( Fig. 1 View Figure 1 ). Porongurup angulatus sp. nov. has fully developed hind wings in both sexes ( Fig. 1A, D View Figure 1 ).

Comments about related taxa.

Based on the thoracic foveal system and the longer abdominal segment VI, Porongurup gen. nov. is closest to the genus Nornalup Park & Chandler, 2017. However, all specimens of Porongurup gen. nov. do not have a median metasternal foveae ( Fig. 3C View Figure 3 ) and have a narrow frontal sulcus ( Fig. 3A View Figure 3 ). The aedeagal form is also different from that of Nornalup in the elongate triangular shape of both the median lobe and the parameres ( Fig. 2 View Figure 2 ). The parameres of Nornalup species are as wide as the median lobe, and the median lobe is parallel-sided in dorsal view ( Park and Chandler 2017: fig. 4 d–i).

Key to species of the genus Porongurup gen. nov.