Ikaros polygonos Chatzimanolis & Brunke 2021, gen. et sp. nov.
- 1. Department of Biology, Geology and Environmental Science, University of Tennessee at Chattanooga, 615 McCallie Ave. Dept 2653, Chattanooga, TN 37403, USA.
- 2. Canadian National Collection of Insects, Arachnids and Nematodes, Agriculture and Agri-Food Canada, 960 Carling Avenue, K. W. Neatby Building, Ottawa, ON K 1 A 0 C 6, Canada.
Description
Ikaros polygonos gen. et sp. nov.
urn:lsid:zoobank.org:act: D7581C8A-2D3A-4D1A-977B-F82E03BD07A7
Figs 2C, 5
DiagnosisIkaros polygonos gen. et sp. nov. can be distinguished from other species in this genus by the presence of an arch-like carina on terga 3–5 (absent in the other two species); the stark polygon-shaped microsculpture on the dorsal surface of the head, thorax and elytra (absent in the other two species) and the long crownlike macrosetae (macrosetae at least twice as long as antennomeres) on the antennomeres (macrosetae much smaller in the other two species).
EtymologyThe specific epithet is derived from the Greek word ‘πολύγωνος’ (‘polygon’) and refers to the stark polygon-shaped microsculpture of the head, thorax and elytra. It is treated here as a noun in apposition.
Type materialHolotype (here designated) VENEZUELA • ♂; “ Venezuela, Merida, Tabay, 7 km E. La Mucuy Station, Sierra Nevada Natl. Park, 2300–2700 m, 8°37′44″N 71°2′26″W, 24.v.1998, R. Anderson, VEN1A98 036B. ex: upper montane forest litter / SM0114364 [barcode label] / HOLOTYPE Ikaros polygonos Chatzimanolis and Brunke, des. Chatzimanolis and Brunke 2020”; MIZA.
DescriptionForebody length 5.2 mm long. Coloration of body reddish brown, with head and pronotum having undertones of metallic green-brown. Head transverse, HW/HL ratio = 1.16. Epicranium with numerous large punctures, except impunctate centre; punctures not contiguous, distance between punctures typically width of 1–2 punctures; with stark polygon-shaped microsculpture. Labial palpus with palpomere 3 widest before apex. Antennomeres with crown-like macrosetae at least twice as long as antennomeres. Pronotum longer than wide, PW/PL ratio = 0.9; surface of pronotum with a median impunctate area as wide as 2–3 punctures; with 4–5 rows of punctures in addition to rows flanking impunctate centre; with stark polygon-shaped microsculpture. Elytra shorter than pronotum, EL/PL ratio = 0.8. Elytra with large, deep contiguous punctures and dense polygon-shaped microsculpture. Abdominal terga 3–5 with archlike carina. Male secondary sexual structures with shallow emargination on sternum 7; with shadow, small U-shaped emargination on sternum 8; borders of emargination on sternum 7 and 8 appearing ‘shaved’ (with no setae), but less so than in I. apteros gen. et sp. nov. Aedeagus as in Fig. 5; in dorsal view paramere slightly longer than median lobe; paramere broad, converging to broad, rounded tip; in lateral view paramere narrower apically. Median lobe in dorsal view becoming narrow to small apex; in lateral view median lobe concave, becoming narrower near curved apex, without subapical tooth.
DistributionKnown only from the type locality in Sierra Nevada National Park in Venezuela (Fig. 6).
RemarksThe holotype is currently in the collection of SEMC but due to the collecting permit requirements (R. Anderson pers. com.), it will be transferred to the MIZA collection in the near future.
Notes
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Linked records
Additional details
Biodiversity
- Collection code
- MIZA
- Event date
- 1998-05-24
- Family
- Staphylinidae
- Genus
- Ikaros
- Kingdom
- Animalia
- Material sample ID
- VEN1A98 036B.
- Order
- Coleoptera
- Phylum
- Arthropoda
- Scientific name authorship
- Chatzimanolis & Brunke
- Species
- polygonos
- Taxonomic status
- gen. et sp. nov.
- Taxon rank
- species
- Type status
- holotype
- Verbatim event date
- 1998-05-24
- Taxonomic concept label
- Ikaros polygonos Chatzimanolis & Brunke, 2021