Neoempheria denticulata, 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

Neoempheria denticulata sp. n.

[Japanese name: nokogiri-nagamado-kinoko-bae] ( Figs. 2 g, 3g, 5, 14c, 14d)

Description. Body length: 5.8 mm. Wing length: 5.2 mm. Wing ( Fig. 3 g): vein sc-r ending basal 7/18 of anterior margin of cell r1. Vein Rs as long as distance between basal end of vein Rs and apical end of vein sc-r. Male: genitalia yellow in ground color, gonocoxal projection brown, gonocoxal lobe and surrounding parts brown, basal portion of aedeagus yellow. S9 narrow, less than 1/10 as wide as long, visible as seam between gonocoxites 9, without sternal projections. Gonocoxite ( Fig. 14 c, d: gc) with gonocoxal lobe ( Fig. 14 c, d: gl) with 2 dentations at apical margin. Gonostylus ( Fig. 14 c: gs) slender, apical 1/4 less than 1.5 times as wide as base. Aedeagus ( Fig. 14 c, d) dilated at apical half, without projections. Sclerotized part of aedeagus ( Fig. 14 c: sa) tapered to apex, with slender, angled lateral extension. Female unknown.

Specimens examined. Holotype. Male. “(FENCHIHU)/ Chiayi – Hsien,/ FORMOSA / August 23rd, 1968 / Coll. M. Nishikawa”, green disk label, “Ne.4007” (EUMJ).

Etymology. The specific epithet is derived from Latin and refers to the gonocoxal lobe being dentate (denticulatus) at the apex ( Fig. 14 c).

Distribution. Taiwan ( Fig. 5 ).

Remarks. This species is distinguished from other species similar in general appearances by the male gonocoxal lobe with dentation at the apex ( Fig. 14 c).

Figures

FIGURE 2. Thoraxes of Neoempheria in dorsal view. a, N. biceltisuta sp. n. (holotype). b, N. bifurcata sp. n. (holotype). c, N. bisecuriata sp. n. (holotype). d, N. brevispathulata sp. n. (holotype). e, N. carinata sp. n. (holotype). f, N. cuneata sp. n. (holotype). g, N. denticulata sp. n. (holotype). h, N. dilatata sp. n. (holotype). i, N. forficulata sp. n. (holotype). j, N. latisternata sp. n. (holotype). k, N. muticata sp. n. (holotype). l, N. sakhalinensis Zaitzev, 2001 (Ne. 2042).

FIGURE 3. Right wings of Neoempheria in dorsal view. a, N. biceltisuta sp. n. (holotype). b, N. bifurcata sp. n. (holotype). c, N. bisecuriata sp. n. (holotype). d, N. brevispathulata sp. n. (holotype). e, N. carinata sp. n. (holotype). f, N. cuneata sp. n. (holotype). g, N. denticulata sp. n. (holotype). h, N. dilatata sp. n. (holotype). i, N. forficulata sp. n. (holotype). j, N. latisternata sp. n. (holotype). k, N. muticata sp. n. (holotype). l, N. sakhalinensis Zaitzev, 2001 (Ne. 2042).

FIGURE 5. Distribution map of Asian Neoempheria. Neoempheria biceltisuta sp. n. (filled star), N. brevispathulata sp. n. (filled up-side-down triangle), N. denticulata sp. n. (filled diamond), N. dilatata sp. n. (filled circle), N. ferruginea (Brunetti, 1912) (filled square), and N. latisternata sp. n. (filled triangle.)

FIGURE 14. Male holotypes of Neoempheria cuneata sp. n. (a, b) and N. denticulata sp. n. (c, d). a, c, 9 th abdominal segment and aedeagus in ventral view. b, d, male gonocoxite, gonostylus, and aedeagus in left lateral view. Scale bars = 0.50 mm. Abbreviations: sp, sternal projection of sternite 9; refer to Fig. 9 for others.