Neoempheria cuneata, 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 : 154-155

Neoempheria cuneata sp. n.

[Japanese name: kusabi-nagamado-kinoko-bae] ( Figs. 2 f, 3f, 6, 14a, 14b)

Description. Body length: 4.3 mm. Wing length: 4.5 mm. Wing ( Fig. 3 f): vein sc-r ending basal 3/14 of anterior margin of cell r1. 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 yellow, sternal projection of S9 black, basal portion of aedeagus yellow. S9 ( Fig. 14 a: S9) narrow, 1/4 as wide as long, with sternal projection ( Fig. 14 a: sp) keel-like in shape. Gonocoxite ( Fig. 14 a, b: gc) without gonocoxal lobe. Gonostylus ( Fig. 14 a: gs) slender, apical 1/4 less than 1.5 times as wide as base. Aedeagus ( Fig. 14 a, b) dilated at apical half, without projections. Sclerotized part of aedeagus ( Fig. 14 a: sa) tapered to apex, with slender, angled lateral extension. Female unknown.

Specimen examined. Holotype. Male. “ Japan, Ryûkyû/ Sonai-dake/ Iriomote-jima/ 11.x.2001 / K. Sugishima leg.”, green disk label, “Ne.2040” (HUM).

Etymology. The specific epithet is derived from Latin and refers to the sternite 9, which is wedge-like (cuneatus) in ventral view ( Fig. 14 a).

Distribution. Japan (Ryukyus) ( Fig. 6 ).

Remarks. This species is distinguished from other species similar in general appearances by the male sternite 9, which is wedge-like in shape when viewed ventrally ( Fig. 14 a).

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 6. Distribution map of Japanese Neoempheria. Neoempheria bifurcata sp. n. (filled circle: locality of indoor facility; double circle: locality in field), N. cuneata sp. n. (filled square), and N. muticata 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.