Geranomyia multipuncta Alexander, 1922

Podenas, Sigitas, Byun, Hye-Woo & Kim, Sam-Kyu, 2015, Limoniinae crane flies (Diptera: Limoniidae) new to Korea, Journal of Species Research 4 (2), pp. 61-96 : 75-76

Geranomyia multipuncta Alexander, 1922

Geranomyia multipuncta Alexander, 1922: 177 .

General coloration brown to light brown. Body length of male 4.7­6.8 mm, female 5.5­7.1 mm. Wing length of male 5.8­7.8 mm, female 6.7­7.8 mm.

Head dark brown with a narrow longitudinal light gray median line on vertex. Anterior vertex very narrow in male, somewhat wider in female, covered with silvery gray pruinosity. Dorsally head covered with sparse erect brown setae. Eyes large, reaching each other on ventral side of head. Length of male antennae 0.75­1.20 mm, that of female 1.00­ 1.25 mm. Whole antenna entirely dark brown. Scape elongate, cylindrical, covered with scarce gray pruinosity. Pedicel slightly elongate, getting wider distally. Flagellum 12­segmented. Flagellomeres elongate, nearly equal in length, just basal segment somewhat longer. Distal segment elongate, nearly as long as preceding segment. Verticils very short, shorter than respective segments. Erect grayish pubescence, covering segments is very short, denser on ventral side of flagellum. Rostrum and mouth parts entirely dark brown. Ventral side of rostrum covered with scarce erect long setae. Mouth parts covered with very short setae. Rostrum together with mouth parts is 2.5 mm long in male and 1.7­ 2.5 mm in female. Palpus dark brown and very short, three­segmented, but basal segment is so small, that palpus seems two­segmented. Palpomeres covered with short erect setae. Subapical segment elongate, nearly cylindrical, apical segment oval and somewhat lighter, brownish. Palpus is situated approximaly at four fifths of antena’s length.

Thorax generally yellowish brown. Pronotum grayish brown with distinct dark brown longitudinal median line. Mesonotal prescutum light brown with somewhat darker central part and with three distinct dark brown longitudinal lines. Central line wide frontally, getting narrower posteriorly, lateral lines narrow and close to median line. Lateral margins of prescutum widely light brown. Lobes of scutum dark brown, just margins narrowly light brown. Scutellum light brown with narrow dark brown median line. Mediotergite dark brown, without median line, just fronto­lateral corners lighter. Pleura light brown with dark brown longitudinal line extending along dorsal margin, right beneath the wing. Ventral margin of katepisternum pale. Wing ( Fig. 4B) with light brownish tinge and distinct pattern of brown spots, which are most pronounced at frontal wing margin. Wing base with few separate small spots. Largest irregular spot at base of Rs, which nearly reaches vein M. Large spot before base of Rs also nearly reaches M, but spot beyond base of Rs not reaches even Rs. Large spot at tip of R extends between vein C and R 2 + 3. It has narrower extension reaching R 4 + 5. Large spot at distal end of cell r 3 has small light window. Distal end of Rs, cord and distal margin of discal cell are surrounded by dark areas. Small dark spots also present at tips of all longitudinal veins, the most distinct of them is at tip of A 2. Many small spots present in cells m and a 1, but usually cell cu is free from small spots. Number and position of small spots is variable among specimens. Somewhat variable is also shape and position of largest spots. Whole distal wing margin is slightly darker than remaining wing area. Subcostal cell yellowish. Wing veins brown, Sc and base of R yellowish. Venation: Sc 1 reaching wing margin somewhat beyond middle of Rs, Sc 2 close to Sc 1 tip. Indistinct additional cross vein present in the middle between arculus and base of Rs, sometimes it is closer to base of Rs. Rs angulated and short­spurred at base. R 1 and R 2 transverse and starting at the same point. Discal cell twice as long as wide. Basal deflection of CuA 1 is at or slightly before branching point of M. Vein A 1 very slightly sinuous, A 2 slightly arched at tip. Cell a 2 wide. Length of male halter 0.9­1.1 mm, that of female 0.9­1.2 mm. Stem of halter light brown with pale base. Knob slightly darkened, brownish. Coxa and trochanters very light brown or yellow. Legs obscure yellow, distal tarsomeres brown. Femur in some specimens just slightly darkened at tip. Male femur II: 4.9­5.5 mm long, III: 5.0 mm; tibiae II: 5.1­6.1 mm, III: 5.5 mm; tarsus II: 4.4 mm long. Female femur I: 5.2­6.0 mm long, II: 5.7­6.6 mm, III: 4.9­6.6 mm; tibiae I: 6.0­ 7.2 mm, II: 6.0­ 7.1 mm, III: 5.5­7.4 mm; tarsus I: 5.2­ 6.4 mm, II: 4.9­5.2 mm, III: 4.1­4.9 mm long. Claw with small subbasal spine.

Abdominal tergites brown, two basal tergites somewhat darker. Posterior and lateral margins of tergites narrowly grayish. Tergites covered with short scarse yellowish setae. Sternites distinctly lighter than tergites, light brown. Three basal sternites pale yellow. Distal (genital) sternite darkened. Male genitalia ( Fig. 4E) large. Ninth tergite transverse, dark brown, posterior margin with small median emargination. Lateral sides of tergite swollen and setose. Gonocoxite dark brown, very wide at base and distinctly narrower at tip, with large ventro mesal lobe, distal end of which rounded and setose. Outer gonostylus short, hook­shaped, sclerotised and dark brown. Inner gonostylus large, slightly more than twice as long as gonocoxite, widened at central part, getting narrower towards apex. Rostral appendage short and strongly curved with single but very long and curved subapical spine. It reaches to the middle of gonostylus, if extended. Paramere wide at base, very narrow and arched at distal end. Edeagus long and narrow. Ovipositor ( Fig. 5B ) with cercus and hypovalve light brown to brown. Cercus very narrow and nearly straight, tip rounded. Hypovalvae wide at base turning distinctly narrower towards apex, reaching to about middle of cercus.

Elevation range in Korea. Specimens were collected at altitudes from about 90 m to about 430 m in South Korea.

Period of activity. Adults are flying from late April through middle of July in South Korea.

Habitats. Adults were collected at the medium­sized, very fast flowing mountainous streams with rocky bottom.

General distribution. The species was known only from Japan (Honshu and Shikoku Islands) ( Oosterbroek, 2015).

Examined materials ( Fig. 10F ): 1$ (pinned), [South] Korea, #18, Central Nat’l. Forest , 18 mi. NE Seoul, [N37. 74813, E127.29364], 350­500 ʹ, 6 July 1954, George W. Byers ( KU) ; 1$(pinned), Korea, #20, 2 mi. S Pup’yongni, 16 mi. NE Seoul, [N37.74075, E127.22069], 300­ 450 ʹ, 11 July 1954, George W. Byers ( KU); 1♂, 1$ (pinned), Korea, #22, Central Nat’l. Forest, 18 mi. NE Seoul, [N37.74813, E127.29364], 400­500 ʹ, 11 July 1954, George W. Byers ( KU); 1♂ (in ethanol, wing slide­mounted), S. Korea, Jeollabuk­do, Jirisan National Park , N35.26137, E127.60302, alt. 431 m, 2012.04.29, S. Podenas ( NIBR) ; 1$(pinned), S. Korea, Gyeongsangnam­do, Hadong­gun, Hwagae­myeon, Beomwang­ri , N35. 27655, E127.61796, alt. 364 m, 2013.05.08, S. Podenas, H.­W. Byun ( NIBR) .

Figures

Fig. 5. Ovipositors of Geranomyia, lateral view.A. G. gifuensis. B. G. multipuncta. C. G. neavocetta.

Fig. 10. Distribution maps.A. Achyrolimonia basispina. B. Discobola annulata. C. Discobola margarita. D. Elephantomyia (Elephantomyia) edwardsi. E. Geranomyia gifuensis. F. Geranomyia multipuncta. G. Geranomyia neavocetta. H. Helius (Helius) nipponensis. I. Libnotes(Afrolimonia) ladogensis. J. Libnotes (Libnotes) amatrix. K. Libnotes (Libnotes) basistrigata. L. Libnotes (Libnotes) longistigma. M. Libnotes (Libnotes) nohirai. N. Libnotes (Libnotes) puella. O. Trentepohlia(Mongoma) pennipes. P. Trentepohlia (Trentepohlia) septemtrionalis.