Porongurup
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Ordo: Coleoptera
Familia: Staphylinidae
Name
Porongurup Choi & Chandler & Park, 2019 gen. nov. – Wikispecies link – ZooBank link – Pensoft Profile
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); pronotum with median antebasal foveae, outer basolateral foveae, and inner basolateral foveae; prosternum with lateral mesocoxal foveae, and median procoxal foveae (Fig. 3B); mesoventrite with lateral mesosternal foveae and promesocoxal foveae (Fig. 3C); metaventrite with lateral metasternal foveae and lateral mesocoxal foveae (Fig. 3C); length of abdominal tergite and visible sternite VI approximately twice as long as V (Fig. 1); species only known from Western Australia (Fig. 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. 4G–L). Male head triangular, broader than long, widest across eyes. Female head more rounded than that of male (Fig. 4G–L). Thorax. Prosternum broader than long, widest at midpoint of prosternum (Fig. 3B). Abdomen. Length of abdominal segment VI approximately two times longer than V (Fig. 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).
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. 4G–L). 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). Porongurup angulatus sp. nov. has fully developed hind wings in both sexes (Fig. 1A, D).
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) and have a narrow frontal sulcus (Fig. 3A). 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). 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[1]: fig. 4d–i).
Key to species of the genus Porongurup gen. nov.Original Description
- Choi, S; Chandler, D; Park, J; 2019: Porongurup, a new genus of pselaphine staphylinid beetles from Western Australia (Coleoptera, Staphylinidae, Pselaphinae, Faronitae) ZooKeys, 881: 13-22. doi
Images
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Other References
- ↑ Park J, Chandler D (2017) Nornalup, a new genus of pselaphine beetle from southwestern Australia (Coleoptera, Staphylinidae, Pselaphinae, Faronitae).ZooKeys695: 111–121. https://doi.org/10.3897/zookeys.695.19906
