Oxyethira (Trichoglene) hamus, Cavalcante & Johanson, 2022
publication ID |
https://doi.org/ 10.5852/ejt.2022.789.1623 |
publication LSID |
lsid:zoobank.org:pub:6CDE7B15-C377-40C9-9A76-345C0BD7085A |
DOI |
https://doi.org/10.5281/zenodo.5846690 |
persistent identifier |
https://treatment.plazi.org/id/200E6D45-51B4-4012-A3B1-4FE519ED65F6 |
taxon LSID |
lsid:zoobank.org:act:200E6D45-51B4-4012-A3B1-4FE519ED65F6 |
treatment provided by |
Felipe |
scientific name |
Oxyethira (Trichoglene) hamus |
status |
sp. nov. |
Oxyethira (Trichoglene) hamus sp. nov.
urn:lsid:zoobank.org:act:200E6D45-51B4-4012-A3B1-4FE519ED65F6
Fig. 1A–D View Fig
Diagnosis
This new species belongs to the group of Oxyethira caledoniensis . It is similar to O. houailou Wells & Johanson, 2015 by the presence of strong sclerotized margins of the inferior appendages, each one bearing one seta in the mesal region as seen in ventral view; and by the general shape of the phallus apex, with a subdistal spine curved to the left in dorsal view. Oxyethira (Trichoglene) hamus sp. nov. is recognized by the hook-shaped apex of the long inferior appendages in lateral view (short and with pointed apex in O. houailou ) and by the posterior margin of segment IX having a trilobed appearance in ventral view (forming a subtriangular projection in O. houailou ).
Etymology
ʻ Hamus ʼ, ʻhookʼ in Latin, refers to the shape of the inferior appendages in lateral view.
Material examined
Holotype NEW CALEDONIA • ♂; Province Sud Haute Yaté fauna reserve, 1760 m S of bridge Pont Perignon, 50 m upstream from bridge over stream; 22.14954° S, 166.701211° E; alt. 180 m; 14 Dec. 2003 – 13 Jan. 2004; K.A. Johanson leg.; Loc#081; Malaise trap; MNHN. GoogleMaps
Paratypes 9 ♂♂; same collection data as for holotype; NHRS. GoogleMaps
Description
BODY. Male antennae with 18 flagellomeres. Forewing length 1.4–1.8 mm (n = 10, mean 1.5 mm); tibial spurs 0,3,4; forewings with venation typical for subgenus. Abdominal sternite VII without mesoventral process.
MALE GENITALIA ( Fig. 1A–D View Fig ). Abdominal segment VIII almost cylindrical, with shallow incision at posterior margin in ventral view ( Fig. 1C View Fig ). Abdominal segment IX inserted within segment VIII; anterior margin forming three lobes in ventral view ( Fig. 1C View Fig ), surpassing anterior margin of segment VIII ( Fig. 1A–B View Fig ). Segment X not visible. Subgenital processes slightly curvilinear in dorsal view ( Fig. 1B View Fig ), each with pointed apex curved downward in lateral view and one bilobed process at base ( Fig. 1A View Fig ). Inferior appendages fused, with strongly sclerotized margins, bearing one pair of small mesal setae at posterior margin visible in dorsal ( Fig. 1B View Fig ) and ventral views ( Fig. 1C View Fig ), and one pair of small setae at inner margin visible in dorsal view ( Fig. 1B View Fig ); posterior margin slightly concave; in lateral view hook-shaped with apex curved backward and touching base of subgenital process ( Fig. 1A View Fig ). Setal lobes absent. Aedeagus elongate; in subdistal region, slender spine pointing left in dorsal view. Titillator absent ( Fig. 1D View Fig ).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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