Larsia pauca, Mondal & Mukherjee & Hazra, 2020

Mondal, Debarshi, Mukherjee, Tuhar & Hazra, Niladri, 2020, A new species of the genus Larsia Fittkau (Diptera: Chironomidae) from India with cladistic analysis and a world key to the known males, Zootaxa 4859 (3), pp. 342-354 : 346

Larsia pauca sp.n.

( Figures 1–4 )

GenBank accession number: MT106671

Type material. Holotype: male, India: West Bengal, Jalpaiguri, Falakata (26°31ʹN, 89°12ʹE), 27.V.2019, coll. D. Mondal. Paratypes: 2 males, same data as holotype ; 2 males, same data as holotype except 29.V.2019, coll. T. Mukherjee .

Diagnosis. The species is distinguished from other members of the genus by the following male features: wing membrane with few macrotrichia distally, AR 1.35–1.38, pale abdominal segments, lyrate tibial spur, broadly conical anal point, and posterior border of T IX with 9–10 setae forming an irregular transverse row.

Etymology. The species name is Larsia pauca . From the Latin paucus (few), referring to the wing membrane with few macrotrichia.

Figures

FIGURE 1A–B. Male of Larsia pauca sp.n. A, antenna, scale: 100 µm; B, wing, scale: 1 mm.

FIGURE 2. Tibial spur of male of Larsia pauca sp.n., scale: 50 μm.

FIGURES 3A–B. A, Male hypopygium of Larsia pauca sp.n., scale: 100 μm; B, Neighbor-Joining tree based on the COX1 gene sequences of Larsia pauca sp.n. and 11 reference sequences of tanypod midges from GenBank, scale: 0.02 substitutions

FIGURE 4. Cladistics analysis of the world species of Larsia pauca sp.n. (CI 0.60, RI 0.83), bootstrap values given above the nodes.