Cheilosia (Cheilosia) himantopus (Panzer, 1798)

Prokhorov, A. V., Popov, G. V., Shparyk, V. Yu. & Vasilyeva, Yu. S., 2023, New Records Of Hoverflies (Diptera, Syrphidae) From Ukraine. Vi, Zoodiversity 57 (2), pp. 125-142 : 126-128

Cheilosia (Cheilosia) himantopus (Panzer, 1798) ( figs 1, 2 , 5–7 )

M a t e r i a l e x a m i n e d. Ukraine. Ivano-Frankivsk Region: Rybne env., 48.938 N 24.583 E, Pavlivka River bank, 17.06.2022, 7 ♀ ( V. Shparyk) .

D i s t r i b u t i o n. Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Czechia, France, Germany, Greece, Hungary, Italy, Liechtenstein, Montenegro, the Netherlands, North Macedonia, Poland, Serbia, Slovakia, Slovenia, Sweden, Switzerland; Georgia, Turkey ( Wolff, 1998; van de Weyer, 2002; De Groot & Govedič, 2008; Bartsch et al., 2009 b; Mazánek, 2009; Nedeljkovićet al., 2009; Reemer et al., 2009; Tóth, 2011, 2014; Saribiyik, 2014; Speight et al., 2018; Speight, 2020; Mielczarek & Żóralski, 2021; Ståhls & Tot, 2021; Bot et al., in prep.); Ukraine (first record).

D i a g n o s i s. Cheilosia himantopus belongs to Cheilosia species group C (sensu Becker, 1894), which is characterized by the following features: pubescent eyes, face without pile, scutellum without setae, legs with pale parts. Cheilosia himantopus is most similar to C. canicularis (Panzer, 1801) ( figs 3, 4 , 8–10 ) in having a large size (12–15 mm), lower half of the eye without pile and hairs on anepisternum and sternites with wavy tip. Both sexes differ by length of the arista hairs, at most equaling half the thickness of arista at base ( fig. 7 ) (in C. canicularis , length of the arista hairs slightly longer than thickness of arista at base, as on fig. 10 ). The male of C. himantopus differs further from C. canicularis by having outer tarsomere of fore leg dark, while the whole fore leg tarsus in C. canicularis is yellow, and there are small differences in the shape of the genitalia ( Stuke & Claussen, 2000). From C. canicularis , the female of C. himantopus differs by: hind margin of tergite 3 not completely obscured by macrotrichia ( figs 1, 2 ) (in C. canicularis , hind margin of tergite 3 completely bscured by dense, adpressed macrotrichia, as on figs 3, 4 ); hind third of tergite 4 with sparse, erect pile ( figs 1, 2 ) (in C. canicularis , hind third of tergite 4 with dense, semierect pile, as on figs 3, 4 ) ( Stuke & Claussen, 2000; Bartsch et al., 2009 b; van Veen, 2010). Biological feature of C. himantopus : main flight period in April–June (in C. canicularis , main flight period in July–September) ( Smit et al. 2001; Speight, 2020). The larva of both species have been reared from Petasites hybridus (L.) G. Gaertn., B. Mey. & Scherb. ( Stuke & Claussen, 2000).

Tribe Brachyopini

Subtribe Brachyopina

Figures

Figs 1–4. Cheilosia himantopus (1, 2) and C. canicularis (3, 4) females: 1, 3 — habitus, dorsal view; 2, 4 — habitus, lateral view.

Figs 5–10.Cheilosia himantopus (5–7) and C. canicularis (8–10) females: 5, 8 — head, dorsal view; 6, 9 — head, frontal view; 7, 10 — right antenna, lateral view.