Neoempheria dilatata, Sueyoshi, Masahiro, 2014

Sueyoshi, Masahiro, 2014, Taxonomy of fungus gnats allied to Neoempheria ferruginea (Brunetti, 1912) (Diptera: Mycetophilidae), with descriptions of 11 new species from Japan and adjacent areas, Zootaxa 3790 (1), pp. 139-164: 155-156

publication ID

http://dx.doi.org/10.11646/zootaxa.3790.1.6

publication LSID

lsid:zoobank.org:pub:87AB27EC-DC05-48F3-8AB7-5C317B275AF5

persistent identifier

http://treatment.plazi.org/id/49168794-FFF1-5655-37AD-FB1D23B43556

treatment provided by

Plazi

scientific name

Neoempheria dilatata
status

sp. n.

Neoempheria dilatata   sp. n.

[Japanese name: fukura-nagamado-kinoko-bae] ( Figs. 2 View FIGURE 2 h, 3 h, 5, 15a –e)

Neoempheria ferruginea: Okada 1938: 137   .

Description. Body length: 4.7 mm (4.4–5.1 mm, n= 5) in male, 4.5 mm (3.8–5.4 mm, n= 7). Wing length: 4.5 mm (3.8 –5.0 mm, n= 10) in male, 4.7 mm (3.8–6.2 mm, n= 9) in female. Wing ( Fig. 3 View FIGURE 3 h): vein sc-r ending basal 1 / 4 of anterior margin of cell r 1. Vein Rs longer than distance between basal end of vein Rs and apical end of vein sc-r. Male: genitalia yellow in ground color, gonocoxal projection dark brown, apex of gonocoxal lobe brown to black, surrounding parts brown, basal portion of aedeagus yellow to dark brown. S 9 narrow, less than 1 / 10 as wide as long, visible as seam between gonocoxites 9, without sternal projections. Gonocoxite ( Fig. 15 View FIGURE 15 a, b: gc) with gonocoxal lobe round ( Fig. 15 View FIGURE 15 a: gl) or angled at outer apical margin. Gonostylus ( Fig. 15 View FIGURE 15 a: gs) slender, apical 1 / 4 less than 1.5 times as wide as base. Aedeagus ( Fig. 15 View FIGURE 15 a, b) dilated at apical half, without projections. Sclerotized part of aedeagus ( Fig. 15 View FIGURE 15 a: sa) tapered to apex, with slender, angled lateral extension. Female: S 7 with uniform setae on posterior margin, posterior margin with deep incision at middle. S 8 triangular in ventral view. Gonocoxite 8 ( Fig. 15 View FIGURE 15 c: gc 8) small, recognizable as bump at sublateral portion in posterior margin of S 8. Gonapophysis 8 ( Fig. 15 View FIGURE 15 c: gp 8) dilated in apical half, with acute apex. Gonocoxite 9 ( Fig. 15 View FIGURE 15 d, e: gc 9) yellow, without projections. Gonapophysis 9 ( Fig. 15 View FIGURE 15 d, e: gp 9) dark brown to black, with a single ventromedial ridge ( Fig. 15 View FIGURE 15 d: vr), gradually tapered to apex with gonopore.

Specimens examined. Holotype. Male. “KU- 352 ” [underside: KU- 352], “Manchoukuo/ I. Okada” [underside: “ 9 /IX- 1937 / Andon [written in Chinese character], “ Neoempheria   / ferruginea   / (Brunetti)/ det. I. Okada”, “RV- 4 ”, green disk label, “Ne. 2012 ” ( HUM). Paratypes. CHINA [LIAONING] same data as holotype (6 ♂, 3 ♀: Ne. 2006 –2011, 2016– 2018; HUM); Tieling, 5.ix. 1937, I Okada leg. (5 ♂, 2 ♀: Ne. 2001 –2005, 2013, 2014; HUM). JAPAN [KYUSHU] Kumamoto P: Mt. Tatsuta, Kumamoto C, 23.vii. 1977, Z Kuranaga leg. (1 ♂, Ne. 1009; FFPRI); same locality, 16.vii. 2008, MS (1 ♂, 2 ♀: Ne.1006, 1007, 1042; BLKU); same locality, 29.vi. 2006, MS (1 ♂: Ne. 1008; BLKU). [RYUKYUS] Okinawa P: Sueyoshi Park, Naha C, 21.iii. 2000, H Nakayama leg. (1 ♂: Ne. 1011; BLKU); Yona, Kunigami V, 25.iii. 2000, H Nakayama leg. (1 ♀: Ne. 1012; BLKU).

Specimens collected in indoor facilities. JAPAN [HONSHU] Nara P: Yamato-kohriyama C, 8.ix. 2011 (16 ♂, 10 ♀: Ne. 1707–1732). [RYUKYUS] Okinawa P: Higashi V, iii. 2009 (2 ♂, 4 ♀: Ne. 1017 –1021, 1041); Nago C, v. 2012 (1 ♂, 1 ♀: Ne.1733, 1734). All specimens are deposited in FFPRI.

Etymology. The specific epithet is derived from Latin and refers to the gonocoxal lobe, which is dilated (dilatatus) ventrally ( Fig. 15 View FIGURE 15 a).

Distribution. China (Liaoning) and Japan (Honshu, Kyushu, and Ryukyus) ( Fig. 5 View FIGURE 5 ).

Remarks. This species is distinguished from other species similar in general appearances by a combination of the following characters: in the male the gonocoxal lobe is dilated at apex; and sternite 9 is narrow and without any sternal projections, and in the female by the acute apex of the gonapophysis 8 ( Fig. 15 View FIGURE 15 c) and dark brown or black gonapophysis 9 with a single ventromedial ridge ( Fig 15 View FIGURE 15 e). Coloration and shape of the apex of the gonocoxal lobe is variable among the specimens from different localities. The 9 th gonapophysis of the females are stable in the coloration and shape among different localities. I consider that the differences we can recognize in the shape and coloration of the gonocoxal lobe are quantitative and continuous among the localities. The male (Ne. 1009) was collected at a light trap.

HUM

Humboldt University Zoologisches Museum

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Mycetophilidae

Genus

Neoempheria

Loc

Neoempheria dilatata

Sueyoshi, Masahiro 2014
2014
Loc

Neoempheria ferruginea:

Okada 1938: 137
1938