Logasa
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Ordo: Coleoptera
Familia: Staphylinidae
Name
Logasa Chandler, 2001 – Wikispecies link – ZooBank link – Pensoft Profile
- Logasa Chandler, 2001: 47.
Type species
Logasa novaeanglia Chandler (designated by Chandler 2001[1]: 47).
Diagnosis
Members of this genus are easily separated from other faronite genera by the following combination of characters: head with long frontal sulcus, closed anteriorly (Fig. 2a); elytra rectangular and longer than wide, hind wings fully developed (Fig. 1a–d); mesoventrite with lateral mesosternal fovea, promesocoxal fovea, and lateral mesocoxal fovea (Fig. 2b), and round setal patch at center (Fig. 2b: arrow); metaventrite with metasternal fovea and median metasternal fovea (Fig. 2b); male abdominal ventrite VIII with setose depression (Fig. 1m) located at middle; abdominal ventrites without basolateral fovea; length of abdominal ventrites and tergites VI–VII longer than others (Fig. 1a–d); female abdominal ventrite IX with two pairs of long setae (Fig. 2c); parameres of male genitalia asymmetric and shorter than apical lobe (Fig. 3a–d); phallobase of median lobe rounded and asymmetric (Fig. 3a–d).
Distribution
Southeast Australia (New South Wales, Victoria, Tasmania).
Comments
All specimens, both male and female, of the genus Logasa have fully-developed hind wings, and many specimens were collected by flight intercept traps. Members of this genus are usually found in temperate or rainforest habitats in southeastern Australia. Male specimens have a setose depression located at the middle of abdominal ventrite VIII as a secondary sexual character, but this is not easily observed on some specimens. Abdominal ventrite IX is important for recognizing the sex of specimens: in males ventrite IX is usually fragile and partially concealed by ventrite VIII; in females it is more robust, triangular and bears a pair of long setae (Park and Carlton 2014[2]).
Taxon Treatment
- Kang, J; Chandler, D; Park, J; 2019: Revision of the Australian genus Logasa Chandler (Staphylinidae, Pselaphinae, Faronitae) with description of three new species ZooKeys, 886: 145-154. doi
Images
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Other References
- ↑ Chandler D (2001) Biology, Morphology, and Systematics of the Ant-like Litter Beetle Genera of Australia (Coleoptera: Staphylinidae: Pselaphinae).Memoirs on Entomology, International, Associated Publishers, Florida, 560 pp.
- ↑ Park J, Carlton C (2014) A revision of the New Zealand species of the genus Sagola Sharp (Coleoptera: Staphylinidae: Pselaphinae: Faronitae).The Coleopterists Society Monograph Number13: 1–156. https://doi.org/10.1649/072.068.0mo4.1
