Ornithomya Larteille, 1802

Nartshuk, E. P., Matyukhin, A. V., Shokhrin, V. P. & Markovets, M. Yu., 2019, New records of ornithophilous louse-flies (Diptera: Hippoboscidae: Ornithomyinae) from the Russian Far East, Far Eastern Entomologist 384, pp. 15-20 : 17

Genus Ornithomya Larteille, 1802

NOTES. The genus includes 29 species, distributed over the World (Maa, 1969; McClure et al., 1973, with changes and adding). Five species are known on the territory of Russia: O.

avicularia (Linnaeus, 1758) , O. biloba (Dufour, 1827) , O. chloropus (Bergroth, 1901) , O.

comosa (Austen, 1930) , O. fringillina (Curtis, 1836) . Two of them, O. biloba and O. comosa ,

are oligoxenous species associated with Hirundinidae , other ‒ polyxenous species. Farafonova

(2001) recorded 3 species of this genus from the Russian Far East. We add the fourth species.

A key to species of the genus known from Russian Far East is given below.

Key to species of the genus Ornithomya from the Russian Far East (modified after Farafonova, 2001)

1. Costal sector between R 1 and R 2+3 no more than sector between R 2+3 and R …………........... 2

4+5

– Costal sector between R 1 and R 2+3 longer than between R 2+3 and R 4+5 …………….................… 3

2. Brown spots on ventral side of head in form of triangle and do not reach yugular setae, which are situated on sides of occipital foramen. Scutellum with 4 preapical setae. Wing in hind part with 4 longitudinal stripes of microtichia. Adult 1.9‒2.5 mm ....... O. frigillina (Curtis)

– Triangle brown spots on ventral side of head are sharp narrowed and reach yugular setae, which are situated on sides of occipital foramen. Scutellum as a rule with 6 preapical setae. Wing in hind part with 3 longitudinal stripes of microtichia. Adult 2.1‒2.6 mm ....................………............……………………………………………………. O, chloropus (Bergroth)

3. Wing dark and all surface evenly covered by microtrichia. Scutellum with 10‒12 reapical long setae. All body covered by hairs. Adult 2‒2.5 mm ( Fig. 3 ) …..… O. comosa (Austen)

– Surface of wing covered by microtrichia no more than 2/3 or less, base of wing without of microtrichia ..……...........………………………………………………………………….4

4. Wing with microtrichia only on apex and in cell m 1. Scutellum with 8 preapical setae. Ab- domen on apex with numerous long setae. Adult 3‒3.5 mm ........……… O. avicularia (L.)

– Microtrichia covered nearly all wing except base or only cells r 3 and m 2. Long setae absent on the apex of abdomem. Adult 2.5‒2.6 mm.………....……………….. O. biloba (Dufour)

Figures

Figs 1–3. Ornithophylous louse flies. 1, 2 – Ornithoica exilis (Walker, 1861): 1 – wing;