Eutolmus brevistylus Coquillett 1898
Creators: name: Young, Charles L.
Publisher: name: Zenodo
Year: 2006
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Asilidae
Eutolmus
Eutolmus brevistylus

description: Eutolmus brevistylus (Coquillett, 1898)
(Figs 4, 16, 32, 33 & 61)
Asilus brevistylus Coquillett, 1898 Coquillet (1898: 314). = Eutolmus ussuriensis Engel, 1928: 148.
Medium to large sized brown flies, 20 to 27mm. 4­6 strong, stout ventral spines on the anterior femur. Tibia reddish yellow. Male sternite 8 greatly elongated medially with long yellow or black hair. Gonostylus with a medio­ventral arch (Fig.16) (more pronounced than in E. koreanus). Aedeagus long and slender, trifid apices flared and tapered (Figs. 32, 33). Female sternite 8 angled upwards; cercus embedded into tergite 9, sharp at distal apex (Fig. 61).
Head: Mystax with long yellowish white hair below, shorter black hair along facial grooves. Thorax: Chaetotaxy with 1 posthumeral bristle; 2 notopleural; 3 supraalar; 3 postalar, 5 dorsocentral bristles. Scutellum yellow pollinose with black or yellow short erect hair; 4 marginal bristles. Pleura yellow gray pollinose, yellow and black hair. Legs: Femora black with yellow and black hair and black bristles, fore femur with 4 6 conspicuous stout, sharp ventral spines; tibia reddish orange, black at apices with yellow and black hair, black bristles. Wings: Entire wing tinged brown. Abdomen: Tergites gray, fine appressed gold and black tomentose; post lateral bristles on tergites 1­4. Gonostylus with a medio­ventral arch (Fig. 16) (more pronounced than in E. koreanus).
South Korean distribution. Ch ǒ llabuk ­Do Province. Iksan­Shi. Mirŭksan. 36°01’12”N, 127°01’52”E. Kunsan. Umpa Lake. 35°57’93”N, 126°41’78”E. Kunsan. Wolmyong Park. 35°57’93”N, 126°41’78”E. Sŏnyudo Is. Okto­Myon. 35°49’18”N, 126°24’47”E. Ch’ungch’ ǒ ngbuk­Do Province. Okcheon. Saesan­Li. 36°16’36”N, 127°36’42”E. Ch’ungch’ ǒ ngnam­Do Province. Chungnam. Kŭmsan. Yangsan­Myon (no coordinates available). Kang­won­Do Province. Ch’unchŏn. Nam­Myon. Hudong­Li. 37°44’31”N, 128°35’41”E. Ky ǒ ngsangnam­Do Province. Samjeong­Li. Macheon. Chiri Mt. 6– 800m. 35°21’36”N, 127°38’25”E. Pijindo Is. (no coordinates available).
Material examined. 1Ψ: 25/VI/2004, Chŏllabuk­Do Province, Iksan Shi, Mirŭksan; 1ɗ, 1Ψ (in cop): 15/VI/2000, Chŏllabuk­Do Province, Kunsan, Umpa Lake; 1ɗ, 1Ψ (in cop): same data except 14/VII/1999; 13ɗ, 13Ψ: same data except 6/VI–14/VII 1999–2000; 5ɗ, 5Ψ (in cop.): 22/VI/1998, Chŏllabuk­Do Province, Kunsan, Wolmyong Park; 17ɗ, 11Ψ: same data except 22/VI–17/VII/1998; 3ɗ, 3Ψ: 1/VIII/2003, Chŏllabuk­Do Province, Sŏnyudo Is. Okto­Myon; 3Ψ: 14/VI/2003, P. Tripotin coll., Ch’ungch’ŏngbuk­Do Province, Okcheon, Saesan­Li; 2ɗ, 1Ψ: 30/VI/2002, P. Tripotin coll., Ch’ungch’ŏngnam­ Do Province, Chungnam, Kŭmsan, Yangsan­Myon; 1Ψ: same data except 4/VIII/1998; 1ɗ: same data except 12–14/VIII/1998, Malaise trap; 1Ψ: 6–31/VII/2003, P. Tripotin coll., Kang won Do Province, Chunchŏn, Nam­Myon, Hudong­Li, Malaise trap; 2Ψ: 25/V/ 2003, P. Tripotin coll., Kyŏngsangnam Do Province, Samjeong­Li, Macheon, Chiri Mt. 6 – 800m.; 1ɗ: same data except 21–2/VI/2002; 1ɗ: 7/VI/1997, P. Tripotin coll., Kyŏngsangnam­Do Province, Pijindo Is.
Field notes. Both species of Eutolmus are widespread in South Korea and occupy sympatric and allopatric habitats. In addition, there is a seasonal overlap.
Eutolmus koreanus Hradsk ý & Hüttinger, 1985 (Fig 17)
Eutolmus koreanus Hradskÿ & Hüttinger 1985 — Hradskÿ & Hüttinger (1985:170).
Medium to large sized brown flies, 20 to 28mm. Long ventral hair on anterior femur. Tibia black. Male gonostylus with a slight medial arch (Fig. 17) (less pronounced than in E. brevistylus). External genitalia of male and female almost identical to E. brevistylus.
Similar to E. brevistylus except: Legs: Femora black with yellow and black hair and black bristles; anterior femur with long black and yellow ventral hair; tibia black with yellow and black hair and black bristles.
South Korean distribution. Ch ǒ llabuk ­Do Province. Impi­Myŏn. Kunsan­Shi. 35°37’93”N, 126°41’78”E. Sŏngsusan Mt. Resort area. Sŏngsu­Myŏn. 35°38’26”N, 127°24’42”E. Pyŏngsanbando N. P. Puan­Gun. 37°44’57”N, 128°34’19”E. Taedunsan Prov. P. 36°05’00”N, 127°20’00”E. Ch ǒ llanam­Do Province. Chirisan N.P. Piagol Valley. Chiri Mt. 570 m. 35°16’39”N, 127°33’91”E. Chungch ǒ ngbuk­Do Province. Okcheon. Saesan­Li. 36°16’36”N, 127°36’42”E. Chungch ǒ ngnam­Do Province. Kŭmsan­Gun. Kŭmsan. Posoksa (no coordinates available). Kang­won­Do Province. Chunchŏn. Nam­ Myon. Hudong­Li. 37°44’31”N, 128°35’41”E. Ky ǒ nggi­Do Province. Seoul. Pukansan N. P. (no coordinates available). Ky ǒ ngsangbuk­Do Province. Kimchŏn­Shi. Kimchŏn 400m. (no coordinates available). Ky ǒ ngsangnam­Do Province. Samjeong­Li. Macheon. Chirisan Mt. 6– 800m. 35°21’36”N, 127°38’25”E.
Material examined. 3ɗ: 30/VII/1998, Chŏllabuk­Do Province, Impi­Myŏn, Kunsan­ Shi; 6ɗ, 5Ψ: 24/VI–10/VII/2004, Chŏllabuk­Do Province, Iksan­Shi, Mirŭksan; 6ɗ, 10Ψ: 26/VII–21/VIII/1998 2000, Chŏllabuk­Do Province, Sŏngsusan Mt. Resort area, Sŏngsu­ Myŏn; 3ɗ, 5Ψ: 20/VII/2001, Chŏllabuk­Do Province, Pyŏngsanbando N. P., Puan­Gun; 6ɗ, 4Ψ: same data except 3/VIII/2000; 7ɗ, 2Ψ: same data except 5/VIII/1999; 2ɗ, 2Ψ: 6/ VIII/1999, Chŏllabuk­Do Province, Taedunsan Prov. P.; 11ɗ, 7Ψ: 16/VII–1/IX/1999 2004, Chŏllanam Do Province, Chirisan N.P., Piagol Valley, Chiri Mt. 570 m.; 1ɗ: 28/VI/ 2002, P. Tripotin coll., Ch­ungch­ŏngbuk­Do Province, Okcheon, Saesan­Li; 1Ψ: same data except 14/VI/2003; 1ɗ: 29/IX/2002, P. Tripotin coll., Ch­ungch­ŏngnam­Do Province, Kŭmsan­Gun, Kŭmsan, Posoksa; 12ɗ, 1Ψ: 6–31/VII/2003 P. Tripotin coll., Kang­won­Do Province, Chunchŏn, Nam­Myon, Hudong­Li, Malaise trap; 4ɗ, 3Ψ: same data except 31/VII–16/VIII/2003; 4ɗ, 1Ψ: 15/VI/1995, Kyŏnggi­Do Province, Seoul, Pukansan N. P.; 3ɗ: 28/VI/2002, Kyŏngsangbuk­Do Province, Kimchŏn­Shi, Kimchŏn 400m., 13ɗ, 1Ψ: 2/VIII–15/IX/2002, Kyŏngsangnam­Do Province, Samjeong­Li, Macheon, Chirisan Mt. 6– 800m.
Field notes. Both species of Eutolmus are widespread in South Korea and occupy sympatric and allopatric habitats. In addition, there is a seasonal overlap.
description: Published as part of Young, Charles L., 2006, Robber flies of South Korea — II. South Korean species of the Subfamily Asilinae Latreille, 1802 (Diptera, Asilidae), pp. 1-30 in Zootaxa 1132 on pages 7-9, DOI: 10.5281/zenodo.171900