Antocha (Antocha) bifida Alexander, 1924

Podenas, Sigitas & Byun, Hye-Woo, 2013, Antochini crane flies (Diptera: Limoniidae: Limoniinae) of Korea, Journal of Species Research 2 (2), pp. 167-184 : 170-171

Antocha (Antocha) bifida Alexander, 1924

Alexander, 1924: 562; Savchenko and Krivolutskaya, 1976: 111; Savchenko, 1983: 106; Lackschewitz, 1964: 716; Torii, 1992b: 167.

General coloration grayish yellow or gray. Body length of male 4.2 to 6.0 mm, female 5.5-6.4 mm. Wing length of male 5.3 to 7.0 mm, female 5.0- 7.9 mm.

Head brownish gray, gray or dark gray, with clearer gray along the orbits. Length of male antennae 1.3-2.4 mm, that of female 1.2-1.5 mm. Scape light gray with yellowish base. Pedicel gray, but darker than scape. Flagellum: basal flagellar segments light gray or yellowish gray, distal segments darker than basal, usually dark brown. Basal segments oval, three distal segments elongate. Apical segment approximately as long as penultimate. Verticils shorter than respective segments, just slightly longer than whitish pubescence covering flagellomeres. Rostrum light gray or light brown, covered with scarce grayish pubescence. Palpus light gray or yellowish gray at base, brownish distally.

Thorax generally ochreous. Pronotal scutum brown, covered with gray pubescence. Mesonotal prescutum grayish yellow or gray with three confluent brown stripes. Median stripe broad with very narrow light median line, or this line completely missing. Mesonotal scutum brown with slightly lighter central part. Scutellum light gray with widely yellowish posterior margin. Mediotergite light gray, sometimes with darkened apex. Pleura reddish brown, slightly pruinose with gray. Wing ( Fig. 1A ) subhyaline, whitish. Stigma very light, nearly lacking. Stem of haltere light gray with yellowish base. Knob slightly darkened apically. Coxae yellow to yellowish brown, covered with gray pubescence. Trochanters yellow to yellowish brown. Femur obscure yellow. Tibiae obscure yellow. Tarsi obscure yellow at base passing into brown distally. Claw with a single, very slender subbasal spine.

Abdominal tergites dark brown, the caudal margins narrowly light yellowish gray. Tergites covered with sparse yellowish setae. Basal sternites grayish yellow, subterminal sternites brown with light yellowish gray caudal margins. Male genitalia ( Fig. 2A ) yellow. Ovipositor ( Fig. 3A ) yellow, covered with erect whitish setae. Cercus long, narrow with upturned apex and smooth ventral margin. Cercus distinctly longer than hypovalvae. Tip of cercus ( Fig. 3B ) with very small hook. Hypovalvae ( Fig. 3C ) apically with abundant sharp triangle teeth.

Period of activity. Adults are flying from late April through late October in Korea.

Habitat. Adults are flying at edges of fast running small streams and medium-sized rivers with sandy or rocky bottoms. They are attracted to light.

Distribution. Known from Southern Siberia ( Russia), Mongolia, North and South Korea, Japan, China and Philippines. Specimens are known to occur at altitudes from 50 m to 1500 m in Korea.

Examined material. 8 JJ, 1 ¥, North Korea, Ompo, altitude 200 feet (approximately 60 m), 1937.05.21, coll. A. Yankovsky; 1 J, North Korea, Ompo, altitude 250 feet (approximately 80 m), 1937.06.09, coll. A. Yankovsky; 4 JJ, North Korea, Ompo , altitude 650 feet (approximately 200 m), 1937.08.11, coll. A. Yankovsky; 2 JJ, 3 ¥¥, North Korea, Ompo , altitude 800 feet (approximately 250 m), 1937.09.22, coll. A. Yankovsky; 3 JJ, North Korea, Seren Mts. , altitude 2500-3500 feet (approximately 750-1100 m), 1937.10.02 -03, coll. A. Yankovsky; 4 JJ, North Korea, Seren Mts. , altitude 2000-3000 feet (approximately 600-900 m), 1937.10.16, coll. A. Yankovsky; 3 JJ, 1 specimen (sex unclear, abdomen broken), North Korea, Ompo , altitude 150 feet (approximately 50 m), 1938.05.05, coll. A. Yankovsky; 4 JJ, North Korea, Ompo , altitude 700 feet (approximately 200 m), 1938.05.08, coll. A. Yankovsky; 1 J, North Korea, Seren Mts. , altitude 4500 feet (approximately 1400 m), 1938.07.10, coll. A. Yankovsky; 1 J, North Korea, Kankyo Nando , Puksu Pyaksan , altitude 5000 feet (approximately 1500 m), 1939.08.03, coll. A. Yankovsky; 1 J, 1 specimen (sex unclear, abdomen broken), North Korea, Kankyo Nando , Puksu Pyaksan , altitude 5000 feet (approximately 1500 m), 1939.08.21, coll. A. Yankovsky; 1 J, Korea, 1959.08, Davis trap 8; 2 JJ, Korea, 1959.08, Davis trap 16; 1 ¥, South Korea, Haanmi-ri , Daehwa-myeon , Pyeongchang-gun , Gangwon-do , Mt. Gariwangsan , N37.4583333, E128.5044444, 2009.05. 13 -06.03, coll. W.Y. Choi et al.; Malaise trap; 1 ¥, South Korea, Hoedong-ri , Jeongseon-eup , Jeongseon-gun , Gangwon-do , Mt. Gariwangsan , N37.4275000, E128.5319444, 2009.06.04 -06.17, coll. J.D. Yeo & J.D.; Malaise trap; 6 JJ, 4 ¥¥, South Korea, Jeollabuk-do province, Piagol village , Piagol valley , mountainous stream, N35.26586, E127.58090, altitude 448 m, 2012.04.27, coll. S. Podenas, entomological net; 1 ¥, South Korea, Jeollabuk-do province, Mount Jiri National park , small stream, N35.26137, E127.60302, altitude 431 m, 2012.04.29, coll. S. Podenas, entomological net; 10 JJ, 4 ¥¥, South Korea, Gangwon-do province , Pyeongchang-gun , Jinbu-myeon , Dongson-ri , small stream, N37.74010, E128.58360, altitude 358 m, 2012.05.01, coll. S. Podenas, entomological net; 4 JJ, 7 ¥¥, South Korea, Gangwon-do province , Pyeongchang-gun , Jinbu-myeon , Dongson-ri , small stream, N37.76607, E128.57730, altitude 801 m, 2012. 05.01, coll. S. Podenas, entomological net; 1 J, South Korea, Gangwon-do province , Pyeongchang-gun , Jinbu-myeon , Ganpyeong-ri , N37.393866, E128.345114, altitude 560 m, 2012.05.02, coll. S. Podenas, entomological net; 5 ¥¥, South Korea, Gangwon-do province , Pyeongchang-gun , Jinbu-myeon , Dongson-ri , near the entrance to Odaesan National Park , agricultural fields, N37.71187, E128.60077, altitude 633 m, 2012.06.22, coll. S. Podenas, at light. Also compared with determined specimens from adjacent regions including the Holotype, 1 J, Japan, Jozankei, Hokkaido, 1927.08.19, coll. Teiso Esaki; paratypes, 1 J, 1 ¥, 1 specimen (sex unclear, abdomen broken), Japan, Hamiotoinep pr., Hokkaido, 1922.08.24, coll. Teiso Esaki; paratype, 1 J, Japan, Hokkaido, Jozankei, 1922.08.19, coll. Teiso Esaki; metatype, 1 J, North Korea, Ompo, altitude 900 feet (approximately 300 m), 1937.10.28, coll. A. Yankovsky; allotype, 1 ¥, Japan, Gifu, 1920.10.02, coll. K. Takeuchi; metatypes, 2 J, 2 ¥, Japan, Shikoku, Omogo, altitude 700 m, 1932.05.10, coll. Ishikara; metatype, 1 J, S.E. China, Yin Na San , E. Kwantung, altitude 1800 feet (550 m), 1936.06.14, coll. G.L. Grassitt; metatype, 1 J, Japan, Wakayama, Kii, 1928, coll. S. Sakaguchi.

Previous records for Korea. 1 J, North Korea, Ompo, altitude 900 feet (about 275 m), 1937.10.28, coll. M. Yankovsky ( Alexander, 1938); North Korea, Seren Mountains, altitude 3,000 feet (about 920 m), 1938.06.30, coll. M. Yankovsky ( Alexander, 1940); 1 J, South Korea, Odaesanjang, Odaesan, Pyongchang-gun, Gangwon-do, 1983. 06.09, coll. S. Uchida ( Torii, 1992b).

Figures

Fig. 1. Wings of Antocha (Antocha). A. A. (A.) bifida. B. A. (A.) dentifera. C. A. (A.) dilatata. D. A.(A.) gracillima. E. A. (A.) integra.

Fig. 2. Male genitalia of Antocha (Antocha). A. A.(A.) bifida. B. A.(A.) dentifera. C. A. (A.) dilatata. D. A.(A.) gracillima. E. A. (A.) integra, outer gonostylus, posterior view. F. A.(A.) integra. A, B, C, D, F. dorsal view.

Fig. 3. Ovipositor of Antocha (Antocha). A. A. (A.) bifida. B. A. (A.) bifida, tip of cercus. C. A. (A.) bifida, distal part of hypovalvae. D. A. (A.) dentifera. E. A. (A.) gracillima. F. A. (A.) integra. G. A. (A.) integra, ventral view. A, D, E, F. lateral view.