Hydrobiosella bos, Cartwright, 2012

Cartwright, David I., 2012, Two further species groups and new species among Australian Hydrobiosella Tillyard: new species from south-eastern Australia (Trichoptera: Philopotamidae), Memoirs of Museum Victoria 69, pp. 245-258 : 257

publication ID	https://doi.org/ 10.24199/j.mmv.2012.69.03
DOI	https://doi.org/10.5281/zenodo.10666184
persistent identifier	https://treatment.plazi.org/id/AF02CC77-9740-0B4D-E0A2-FDA591083142
treatment provided by	Felipe
scientific name	Hydrobiosella bos
status	sp. nov.

Treatment

Hydrobiosella bos sp. nov.

Figures 33–35 View Figures 33–37 , 43 View Figures 38–43

Holotype. Male. Victoria, Eurobin Falls, Mt Buffalo Rd (about 36°42'S, 146°50'E), 3 Dec. 1982, A. Neboiss ( NMV, T- 21484). GoogleMaps

Paratype. Victoria. 1 male (specimen CT-553 figured) , 2 females (specimen CT-554 figured), collected with holotype ( NMV) GoogleMaps .

Diagnosis. Males of Hydrobiosella bos can be distinguished from those of other species in the group by the dorso-mesally angled basal segment on the inferior appendages.

Description. Wings similar to H. letti ( Fig. 17 View Figures 17–23 ), length of forewing: male 7.6-8.0 mm, female 8.9-9.4 mm.

Male. Segment IX robust, in lateral view, length about 1.4 times width, projecting and tapered basally (fig. 34), with a shallow, wide concavity medially on distal margin ( Fig. 35 View Figures 33–37 ). Segment X broad-based, tapered distally ( Figs 33, 34 View Figures 33–37 ), in dorsal view, ‘tongue-shaped’, length about 1.8-1.9 times width, broadly rounded apex ( Fig. 33 View Figures 33–37 ); in lateral view, straight, with slightly bulbous apex ( Fig. 34 View Figures 33–37 ). Phallus generally tube-like; with a pair of long, slightly curved, ‘parameres’ arising from the phallus near base ( Figs 33, 34 View Figures 33–37 ). Inferior appendages in lateral view, with basal segment sub-pentangular, length about 1.4 times maximum width, harpago shorter, length about 0.7 times length basal segment, more slender, length about 2.6 times maximum width, sub-ovate, broadly rounded apically ( Fig. 34 View Figures 33–37 ).

Female. Genitalia typical of genus with a small acute projection on sternite IX meso-distally ( Fig. 43 View Figures 38–43 ).

Etymology. Bos – Latin for buffalo (type locality-Mt Buffalo).

Remarks. Two males and two female specimens of Hydrobiosella bos have been collected from the type locality in north-eastern Victoria (latitude 36°42'S).