Limnophila (Limnophila) Macquart, 1834

Podenas, Sigitas & Byun, Sun-Jae Park and Hye-Woo, 2022, Limnophila crane flies (Diptera: Limoniidae) of Korea, Journal of Species Research 11 (2), pp. 117-127 : 120-121

Limnophila (Limnophila) Macquart, 1834

Limnophila (Limnophila) Macquart, 1834: 95 ; Edwards,

1938: 64 (Key), 84, 85; Ishida, 1959: 3 (Key); Savchenko, Krivolutskaya, 1976: 64; Savchenko, 1983: 53, 1989: 91, 92.

Type species - Limnobia pictipennis Meigen, 1818 , by subsequent designation of Westwood, 1840: 128 (Palaearctic).

Adult.

Medium-sized crane fly with body length 9.0- 15.2 mm and wing length 8.5-14.5 mm. Body coloration gray to brownish.

Head: Extended posteriorly.

Thorax: Wing long and narrow, posterior margin evenly rounded, without angulate extension. Wing area densely spotted, larger spots at frontal margin, numerous small spots along veins and in most cells. Apex of vein Sc nearly transverse, sc-r slightly beyond it. Anal vein arched at wing margin.

Abdomen: Ninth tergite of male abdomen with two rounded lobules at middle of posterior margin. Gonocoxite often armed with strong spine or extended outgrowth apically. Outer gonostylus with simple blunt-apexed or hook-shaped apex. Inner gonostylus setose, often with brush of long setae along basal half of outer margin. Paramere long and slender, distal part turned medially. Aedeagus long, arched and tube-shaped, apex curved downwards. Ovipositor with long and narrow cerci and hypovalvae, distal part of cercus slightly raised upwards, blunt-apexed, dorsal margin of hypovalva with long parallel setae distally.

Subgenus is known from all biogeographical regions except Nearctic with highest diversity in Australia and Neotropics ( Oosterbroek, 2021). No fossil species are ascribed to this subgenus ( Evenhuis, 2014).

Last instar larva.

Head capsule: In general, very similar to that of other subgenera. Frons well developed and separated from internolateralia by frontal suture and has acute frontal spine. Antenna short, reaching only half of the mandible length, apical segment short and sculptured, two long setae and three short papillae on the top of basal segment. Mandible bears two teeth at the base.

Abdomen: Segments IV- VII have dorsal and ventral creeping welts. Ventral creeping welts are more prominent than dorsal.

Terminal segment: Ventral pair of spiracular lobes slightly longer than lateral pair. Apical part of each lateral lobe covered with light brown long setae, length of which is almost equal to the length of lobes. Apical part of each ventral lobe covered with long light brown setae, length of which is 2/3 length of lobe. Ventral and lateral lobes covered with pale “U”- shaped sclerites, margin of which is darker than inner part. A small, oval brown sclerite situated at the base of ventral lobe.

Pupa.

Similar to that of the whole genus.