Bicellaria alpina Bezzi

Barták, Miroslav & Kubík, Štěpán, 2013, Species of Bicellaria Macquart (Diptera: Hybotidae) of Europe, with descriptions of four new species, Zootaxa 3647 (2), pp. 251-278 : 253-254

Bicellaria alpina Bezzi

( Figs 3–4 , 48 )

Bicellaria alpina Bezzi, 1918: 75 .

Type material examined. Val Bitto, 4.viii.1899, 13 (labelled: “ B. alpina ” det. Bezzi - probably a syntype, SDEI). Additional material examined (43, 6Ƥ). Italy: 13, Cusiano(?), viii.1895; 2Ƥ, Val Genova, vii.(?)1899; 1Ƥ, same loc. 4.viii.1899; 1Ƥ, San Martino, 30.vii.1914; 13, Venino, 11.vii.1902 (“ B. alpina ” det. Bezzi) (SDEI); 1Ƥ, Passo Sella, alpine meadow, 8.viii.1988, 46°26'N, 11°43'E, 2100 m, M. Barták (CULSP). Switzerland: 13, Lenzerheide, pasture, 2000 m, 14–21.vii.2000, Malaise trap, B. Merz; 13, same locality, 21–31.vii.2000, B. Merz (CULSP); 1Ƥ, Maloja, 23.vii.1906? (SDEI).

Diagnosis. Bicellaria alpina is a member of the B. pilosa complex of species (characterized by 4 or more black setae on palpus, 1–3 dorsal setae on third antennal segment, all body setae black and bifurcate left phallic hook), the third species of this complex ( B. setipalpus sp nov.) differs from both remaining species in the structure of the genitalia (sharply bent anterior arm of left phallic hook). Chvála (1991) considered B. alpina and B. pilosa Lundbeck to be identical, listing B. alpina as a junior synonym of B. pilosa (although he had no specimens of B. alpina on hand). However, we remove this species from synonymy despite not finding any differences in the male genitalia (the presence or absence of a long seta on the base of the hypandrial processes is apparently a variable character in all three species of the B. pilosa complex). Bicellaria alpina may be easily recognised from B. pilosa according to the key.

Distribution. Mountains of Central and Southern Europe.

Remarks. Tuomikoski (1955) provided a short redescription and illustration of the hypandrium. For further remarks see under B. pilosa .

Figures

FIGURES 1 – 8. Hypandrium (ventral view) and phallus with postgonites (lateral view). 1 – 2. Bicellaria albopilosa Chvála. 3 – 4. Bicellaria alpina Bezzi. 5 – 6. Bicellaria andorra sp. nov. 7 – 8. Bicellaria austriaca Tuomikoski. Abbreviations: eapejaculatory apodeme, hph—phallic hooks, mep—median extensions of postgonites, pgn—postgonites, vap—ventral apodeme. Scale bars = 0.10 mm.

FIGURES 41 – 48. 41 – 44. Hypandrium (ventral view) and phallus with postgonites (lateral view). 41 – 42. Bicellaria uvens Melander. 43 – 44. Bicellaria vana Collin. 45 – 46. Distal part of front tibia and proximal part of front basitarsus (posterior view). 45. Bicellaria spuria (Fallén). 46. Bicellaria vana Collin. 47 – 48. Antennae. 47. Bicellaria dispar Oldenberg. 48. Bicellaria alpina Bezzi (microchaetae mostly omitted). Scale bars = 0.10 mm.