Coenosia wrangelensis Sorokina, 2012, sp. nov.

• Main Author: Sorokina, Vera S.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2012
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Diptera; Muscidae; Coenosia; Coenosia wrangelensis; Wrangel Island
• Online Access: https://doi.org/10.5281/zenodo.6167115; http://treatment.plazi.org/id/923787DED623110AFF11FCB6FD9F6530

Coenosia wrangelensis sp. nov. Figs 3 A–C Type material: Holotype male, RUSSIA, Wrangel Island, middle part of the River Mamontovaya, 71º10’N 179º46’W, 8,20. vii.2006, О. Khruleva (SZNM). Paratype male, same data as holotype (SZNM). Etymology: The species name is based on the type-locality, Wrangel Island. Diagnosis: The species is very closely similar to the Holarctic Coenosia octopunctata (Zetterstedt, 1838) and to the Nearctic Coenosia alaskensis Huckett, 1965. These two species differ only by the wide parafacial and strongly developed seta at the middle of hind tibia in C. alaskensis . The new species can be recognized as follows: very small species (3.0– 3.2 mm), hind tibia without any pd , one pair of strong presutural dc, mid and hind femora yellow on basal 1/3, all tibiae darkened, mid and hind tibiae seem brownish, scutum with 3 distinct brown narrow longitudinal vittae along dc and ac rows and brown dusted between dc setae, reaching the apex of scutellum, sternite 5 small, without long setae at the apex. The new species can be incorporated into the key of Sorokina (2009a: 4) to Siberian Coenosia by the following couplets: 8 All femora black, at most with apices narrowly yellow. 9 - At least mid and hind femora yellow on basal 1/3. 12 9–11 Couplets as in Sorokina (2009) 12 At least apical half or third of hind femur black. 12a - All femora completely yellow; only one pair of presutural dorsocentrals. 13 12a Two pairs of presutural dorsocentral setae, the anterior pair 1/2 or 1/3 as long as posterior pair; scutum with 2 distinct brown narrow longitudinal vittae along dorsocentral setae, without brown dust; mid and hind femora yellow on basal 2/3, all tibiae yellow. C. octopunctata (Zetterstedt) - One pair of presutural dorsocentral setae; scutum with 3 distinct brown narrow longitudinal vittae along dc and ac setae, with brown dust between dc mid and hind femora yellow on basal 1/3, all tibiae darkened. C. wrangelensis sp. nov. 13 Couplet as in Sorokina (2009) Description: Male : body 3.0– 3.2 mm, wing ...