Limonia phragmitidis (Schrank, 1781)

Ren, Jinlong & Yang, Ding, 2020, Two new species of Limonia Meigen, 1803 from Northwest China (Diptera, Limoniidae), ZooKeys 971, pp. 31-58 : 31

3. Limonia phragmitidis (Schrank, 1781) Figures 17-19 , 20-23 , 24-25

Tipula phragmitidis Schrank 1781: 605.

Tipula tripunctata Fabricius 1781: 405 (subsequent designation by Westwood 1840).

Tipula phragmitidis Schrank: Kolcsár et al. 2017: 50 (redescription).

Diagnosis.

Flagellar verticils shorter than corresponding segment. Pronotum dark brown. Prescutum with one narrow, deep-brown longitudinal stripe. Wing pale brown with three small, brown markings at base of Rs, apical Sc, and R2; Sc1 apically reaching 1/2 of Rs. Gonostylus with sharp apex and swollen base. Paramere ended at 3/5 of aedeagus. Aedeagus with unique H-shaped pattern at the mid-ventral margin. Female, hypogynial valve 2.1 times longer than wide at base.

Redescription.

Male (n = 7): body length 7-8.5 mm, wing length 8-9 mm.

Head dull brown (Figs 17 , 18 ). Vertex dull brown. Occiput dull yellow, covered with black setulae. Antenna yellow and 14-segmented; scape yellow; pedicel oval; flagellomeres nearly cylindrical; flagellar verticils black, shorter than corresponding segment. Rostrum brown or dark brown. Labella pale yellow, except inner margin brown covered with black setulae. Palpi brown with black setulae.

Thorax mostly yellow (Figs 17 , 18 ). Cervical sclerite pale brown, with black outer margin. Pronotum dark brown with black setulae. Prescutum with rather narrow, brown longitudinal stripe (anterior part wider than posterior part). Scutum pale yellow, with black setulae around outer margin. Scutellum pale yellow. Mediotergite pale yellow to yellow (Fig. 18 ). Mesopleura pale yellow to yellow; subspiracular sclerite pale yellow; anepimeron and katepisternum with black setulae. Legs with coxae and trochanters pale yellow; femora yellow with one dark-brown subapical ring; tibiae brown; tarsi brown to dark brown. Setulae on legs black. Wing hyaline, pale brown, with three small brown markings at base of Rs, apical Sc, and R2; Sc1 apically reaching 1/2 of Rs; basal deflection of CuA1 before branching point of M (Fig. 19 ). Halter: stem white; knob bicolor with upper part pale yellow to yellow while lower part white (Fig. 17 ).

Abdomen mainly yellow (Fig. 17 ). Sternite 8 reddish brown. Each abdominal segment with one pale-brown ring at posterior margin. Abdomen covered with golden setulae.

Hypopygium pale yellow (Figs 20-23 ). Posterior margin of tergite 9 narrowly emarginated (Fig. 20 ). Gonocoxite long cylindrical. Gonostylus with sharp apex and swollen base that covered with black setulae (Figs 20 , 21 ). Paramere with fan-shaped base and sharp apex that ends at 3/5 of aedeagus (Figs 20-23 ). Aedeagus forked; ventral margin with mid-protrusion that triangular in lateral view and unique H-shaped pattern in middle (Figs 20-23 ).

Female (n = 6): body length 8-10 mm, wing length 8-10 mm.

Female resembling male in head, thorax, and wing. Female terminalia pale yellow. Cercus yellowish brown, slightly arched dorsally at apex, slender, and 2.3 times longer than wide at base. Hypogynial valve 2.1 times longer than wide at base; lateral margin with black marking (Figs 24 , 25 ).

Material examined.

1 male, China: Xinjiang, Habahe, Baihabacun, 48.69N, 86.79E, elev. 1170 m, 2016.VII.12, Jinlong Ren (light trap) (CAU). 24 males, 20 females, China: Xinjiang, Burqin, Hemu, 48.43N, 87.57E, elev. 1040 m, 2016.VII.21, Jinlong Ren (CAU). 60 males, 40 females, China: Xinjiang, Burqin, Hemu, 48.58N, 87.45E, elev. 1160 m, 2016.VII.21, Jinlong Ren (CAU). 47 males, 37 females, China: Xinjiang, Burqin, Hemu, 48.56N, 87.44E, elev. 1150 m, 2016.VII.22, Jinlong Ren (CAU). 35 males, 30 females, China: Xinjiang, Burqin, Hemu, 48.56N, 87.44E, elev. 1210 m, 2016.VII.23, Jinlong Ren (CAU). 1 female, China, Xinjiang, Gongliu, Kuerdening, 43.28N, 82.95E, elev. 1270 m, 2017.VII.26, Bing Zhang (CAU). 1 female, China, Xinjiang, Gongliu, Kuerdening, 43.25N, 82.83E, elev. 1140 m, 2017.VII.26, Bing Zhang (light trap) (CAU).

Distribution.

Albania, Andorra, Austria, Azerbaijan, Belarus, Belgium, Bosnia-Herzegovina, Bulgaria, China (Xinjiang: Burqin, Habahe, Gongliu), Croatia, Czech Rep., Denmark, Finland, France, Georgia, Germany, Great Britain, Greece, Hungary, Ireland, Israel, Italy, Jordan, Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Luxembourg, Macedonia, Montenegro, Morocco, Netherlands, North Caucasus, Norway, Poland, Romania, Russia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, Turkey, Ukraine.

Remark.

This is the first report of this species from China.

Figures

Figures 17 - 19. Limonia phragmitidis, male 17 male habitus, lateral view 18 head and thorax, dorsal view 19 right wing. Scale bars: 1.0 mm.

Figures 20 - 23. Limonia phragmitidis, male 20 hypopygium, dorsal view 21 hypopygium, ventral view 22 hypopygium, lateral view 23 aedeagus and paramere. Scale bars: 0.1 mm.

Figures 24 - 25. Limonia phragmitidis, female 24 cercus and hypogynial valves, lateral view 25 cercus and hypogynial valves, ventral view. Scale bars: 1.0 mm.