Scathophaga apicalis (Curtis, 1835)

Ozerov, A. L. & Krivosheina, M. G., 2021, A review of the genus Scathophaga Meigen, 1803 (Diptera: Scathophagidae) of Russia, Russian Entomological Journal 30 (2), pp. 201-246 : 206

Scathophaga apicalis (Curtis in Ross, 1835)

Figs 14, 43–45, 140 .

apicalis Curtis in Ross, 1835: LXXX ( Scatophaga ). Type-locality: not given (Boothia Pen. to Greendland).

arctica Becker, 1897: 398 ( Scatophaga ). Type-locality: Malye Karmakuly ( Russia: Novaya Zemlya).

lanata Lundbeck, 1901: 294 ( Scatophaga ). Type-locality: “ Grønland... Østkysten ved Hekla Havn og. Gaaselandet” (Grenland: Scorsby Sund nr Hekla Havn and Gaaseland).

perfecta Becker, 1907: 3 ( Scatophaga ). Type-locality: “Lena- Mündung, Charanlach-gebirge, Cap Elijdep” [arctic coast of Yakutia] ( Russia).

vulpinum Ringdahl, 1936: 173 ( Scopeuma ). Junior primary homonym of Scopeuma vulpina Coquillett, 1898 . Type-locality: “Lappland bei Torneträsk in der Regio Alpina ” ( Sweden).

villosiventre Ringdahl, 1937: 38 (new name for Scopeuma vulpinum Ringdahl, 1936 ).

REMARK. This species was recorded in Russia on arctic coast from European part (Yugorsky Peninsula, Novaya Zemlya) [ Becker, 1897: 398, as S. arctica ; Gorodkov, 1986: 29], Siberia (Taimyr Peninsula) [ Ozerov, Barkalov, 2014: 563], Yakutia [ Becker, 1907: 3, as S. perfecta ; Verves et al., 1990: 141; Bagachanova et al., 2016: 781], Chukotka [ Gorodkov, 1986: 29; Ozerov, Krivosheina, 2014: 218, as S. multisetosa ].

MATERIAL EXAMINED. Chukotka: 5 km N of Egvekinot (66.395ºN 179.132ºW), 26.VII.1963, Gorodkov (3 ♂♂, 2 ♀♀, ZISP) ; Iul’tin (67.866ºN 178.733ºW), 20.VII.1963, Gorodkov (2 ♂♂, ZISP) ; Vrangel I. (71.223ºN 179.439ºW), surrounding area of Mt. Aternon , 24.VII.1939, Portenko (8 ♂♂, 4 ♀♀, ZISP) ; Vrangel I. (71.223ºN 179.439ºW), Tundrovaya env., 18.VII.1972, Gorodkov (8 ♂♂, 12 ♀♀, ZISP) ; Vrangel I., Somnitel’naya Bay (70.894ºN 179.542ºW), 5 km N, 23.VII.1971, Gorodkov (32 ♂♂, 18 ♀♀, ZISP) ; Vrangel I., Somnitel’naya Bay (70.95ºN 179.633ºW), 8– 17. VI.2015, O.A. Khruleva (1 ♂, ZMUM) ; Vrangel I., average flow of the River Mamontovaya (71.166ºN 179.75ºW), 1–2, 23.VII.2015, O.A. Khruleva (13 ♂♂, 13 ♀♀, ZMUM) ; Vrangel I., Mt Mineev (71.00ºN 179.516ºW), 18–19.VII.2015, O.A. Khruleva (2 ♂♂, ZMUM) ; Vrangel I., Rodzhers Bay (70.979ºN 178.416ºW), 18.VII.1971, Gorodkov (5 ♂♂, 1 ♀, ZISP) ; Vrangel I., spurs of Mt Pervaya (71.15ºN 179.45ºW), 13.VII.2015, O.A. Khruleva (1 ♂, ZMUM) ; Vrangel I., upper course of the River Neizvestnaya (71.216ºN 179.316ºW), 22–24. VI., 8–10.VII.2015, O.A. Khruleva (9 ♂♂, 5 ♀♀, ZMUM) ; Krasnoyarsk Krai: 13.5 km SSE of Dikson (73.39ºN 80.66ºE), 18.VII.2012, V. K. Zinchenko (1 ♂, ZISP) ; Dikson (73.508ºN 80.529ºE), 8.VIII.1967, Gorodkov (7

♂♂, 14 ♀♀, ZISP); Taymyr, the lower reaches of the River Lenivaya (74.966ºN 89.916ºE), on flowers of Sieversia glacialis , 4.VII.1980, Yu.I. Chernov (2 ♂♂, ZMUM); Yakutia: Tiksi env., Lake Sevast’yan (71.543ºN 128.852ºE), 9.VII. and 10.VIII.1957, Gorodkov (8 ♂♂, 5 ♀♀, ZISP). See also Ozerov & Krivosheina [2014: 218, as S. multisetosa ] and Ozerov & Barkalov [2014: 563].

DESCRIPTION. Male. Female. Body-length 4.3– 8.6 mm.

Male thorax, abdomen and legs covered with dense, furry, blackish or brownish hairs. Female much less hairy, especially abdomen and legs.

Head. Frontal vitta reddish-orange, with delicate whitish reflection; fronto-orbital plate black, greyish dusted. Face, parafacial and gena reddish-orange, with delicate whitish reflection. Postcranium black. 3 orbital and 4–5 frontal setae present. Scapus and pedicel reddish-orange. Postpedicel black, approximately 2 times as long as wide. Arista bare. Palpus yellow.

Thorax black, densely greyish dusted. Acrostichals not differentiated from the other long hairs on scutum, dorsocentrals 2+3, intra-alars 1+2, supra-alars 1+2, postpronotals 2. Anepimeron bare. Scutellum black, greyish dusted, covered with dense hairs, with a pair of strong basal scutellar and a pair of strong apical scutellar setae.

Legs greyish dusted. Femora and coxae from yellow completely to blackish. Tibiae and tarsi yellowish. All femora covered with hairs, but without conspicuous setae, only mid femur with 1 preapical posterior seta. Fore tibia with 2–3 dorsal, 1–2 posterior, 1 preapical anterodorsal, and 1 posterior apical setae. Mid tibia with 2–3 posterodorsal, 1–2 anterodorsal, 1–2 posteroventral setae and a ring of apicals in both sexes, additionally with 1 ventral seta in female. Hind tibia with 2–3 posterodorsal, 3 anterodorsal, 1 preapical dorsal, 1 preapical anterodorsal and 1 apical anteroventral setae ( Fig. 140 ).

Wing tinged with brownish; crossveins r-m and dm-cu usually darkened.

Abdomen black, greyish dusted. Male sternite 4 approximately 1.5 times as long as wide ( Fig. 14), Male sternite 5, epandrium, cercal plate and surstyli as in Figs 43–45.

DISTRIBUTION. Russia: north (arctic coast) from Kola Peninsula to Chukotka. — Europe ( Sweden); North America.

Figures

Figs 138–141. Scathophaga litorea (Fallén) (138), S. karelica Ozerov (139), S. apicalis (Curtis) (140) and S. multisetosa (Holmgren) (141): 138, 139 — end of male abdomen; 140, 141 — hind tibia, dorsal view. 138, 139 — after Ozerov, 2013, figs 11, 12. Рис. 138–141. Scathophaga litorea (Fallén) (138), S. karelica Ozerov (139), S. apicalis (Curtis) (140) и S. multisetosa (Holmgren) (141): 138, 139 — конец брюШка самца; 140, 141 — голень Задней ноги, сверху. 138, 139 — по Ozerov, 2013, figs 11, 12.