Baetiella spathae Shi & Tong, 2015

Vasanth, M., Selvakumar, C., Subramanian, K. A., Sivaramakrishnan, K. G. & Sinha, Bikramjit, 2020, New record of the genus Baetiella Uéno, 1931 (Ephemeroptera: Baetidae) from India with description of a new species and new records for five species, Zootaxa 4763 (4), pp. 563-578 : 576

Baetiella spathae Shi & Tong, 2015

( Figs 76–80 )

Material examined. 1 larva, INDIA, Arunachal Pradesh, Papumpare, district, Longding, Laporiang, Pare stream, 28.392 N, 93.825 E, 819 m, 23.ix.2018, coll. B. Sinha (Reg. No. I/E/403).

Diagnosis. Baetiella spathae is closely related to B. armata Braasch, 1983 from Nepal as both present a single posteriomedian protuberance on terga I–IX. However, Baetiella spathae can be differentiated from that species based on the following combination of characters: (i) antennal scape and pedicel with blunt scale-like setae; (ii) terminal segment of maxillary palpus with a pronounced tip; (iii) 2nd segment of labial palpus almost fused with terminal segment and without inner-apical lobe, terminal segment asymmetrically conical with a small tip at apex; (iv) posterior margin of sterna V–IX with close-set long spatulate setae ( Figs 79–80 ); and (v) inner margin of paraproct with a row of 5–6 oval scale-like setae ( Shi & Tong 2015).

Distribution. China (Tibet) and India (Arunachal Pradesh) ( Fig. 81 ).

Remarks. Shi and Tong (2015) described Baetiella spathae based on the larvae from Tibet, China. Our new data represent the first report of this species from India.

Figures

FIGURES 81. Distribution map of Baetiella in Arunachal Pradesh, India.

FIGURES 76–80. Larva of Baetiella spathae Shi & Tong, 2015. 76. Habitus in dorsal view; 77. Ventral view; 78. Lateral view; 79. Abdominal sternum V; 80. Abdominal sternum VIII.