The genus Leucophenga (Diptera, Drosophilidae), part II: the ornata species group from East Asia, with morphological and molecular evidence (I)
Huang, Jia
Li, Tong
Gao, Jianjun
Chen, Hongwei
Zootaxa
2013
3701
2
101
147
8CJH3
Wheeler, 1959
Wheeler
1959
[151,586,476,502]
Insecta
Drosophilidae
Leucophenga
Animalia
Diptera
18
119
Arthropoda
species
ornata
Diagnosis.Wing slightly yellowish except brown patches ( Fig. 2A); paramere broadened medially, pubescent along distal margin, lacking sensilla ( Fig. 14D); aedeagus hook-shaped apically ( Fig. 14E).
Description.Ocellar triangle with ca. 3–10 setae above ocellar setae. Frons yellowish brown to dark brown. Pedicel brownish to brown; first flagellomere brown. Clypeus dark brown. Mesonotum yellowish brown on anterior 2/3, brown on posterior 1/3, with 3 brown longitudinal stripe: unapparent and diffuse medially and thin laterally in some paratypes( Fig. 4A), sometimes without any stripes in some paratypes. Postpronotal lobe brownish. Acrostichal setulae in ca. 14–16 irregular rows ( Fig. 4A). Scutellum brown, pale at tip ( Fig. 4A). Katepisternum brownish yellow ( Fig. 4B). Meron slightly brown ( Fig. 4B). Wing ( Fig. 2A): Costal vein between R2+3 and R4+5 distally with ca. 7 peg-like spinules on ventral surface. Halter slightly brown apically ( Fig. 4B). Legs slightly brownish on hind femur. Abdominal tergites brown to black ( Fig. 8A); second slightly yellow anteromedially, with 1 yellow patch laterally; third with a pair of narrow, yellow patches submedially along margin; fourth and fifth each with a pair of small, unconspicuous, yellow patches submedially along margin; sixth with yellow, M-shaped patch posteriorly. Male terminalia: Epandrium with ca. 7 setae near posterior margin and ca. 4 setae on ventral corner per side ( Fig. 14B). Hypandrium lacking sensilla ( Fig. 14C). Paramere broadened medially, narrowed distally, with some pubescence distally ( Fig. 14D). Aedeagus reticulated medially, with a triangular projection basodorsally ( Fig. 14E). FIGURE 14. Leucophenga ornatamale head and terminalia in lateral view: A. head, B. epandrium (epand), surstylus (sur) and cercus (cerc); C. hypandrium (hypd), paramere (pm), gonopods (gon), aedeagus (aed) and aedeagal apodeme (aed a); D. paramere; E. aedeagus. Scale bars = 0.1 mm. Measurements.BL = 3.13–3.80 mmin ♂, 3.13–3.57 mmin ♀ (range in 5♂and 5♀), ThL = 1.23–1.87 mmin ♂, 1.33–1.63 mmin ♀, WL = 2.32–2.93 mmin ♂, 2.23–2.80 mmin ♀, WW = 1.12–1.48 mmin ♂, 1.07–1.30 mmin ♀, arb = 6–8/3–4, avd = 0.62–1.00, adf = 1.50–2.00, flw = 1.47–2.00, FW/HW = 0.36–0.41, ch/o = 0.02–0.04, prorb = 0.48–0.62, rcorb = 0.53–0.76, vb = 0.30–0.50, dcl = 0.43–0.61, presctl = 0.36–0.60, sctl = 1.19–1.59, sterno = 0.55–0.83, orbito = 1.80–2.30, dcp = 0.27–0.34, sctlp = 0.88–1.14, C = 1.96–2.19, 4c = 1.41–1.75, 4v= 2.00–2.58, 5x= 0.89–1.27, ac = 3.20–4.00, M = 0.50–0.67, C3F = 0.81–0.87. Specimens examined. JAPAN: 3♂(SCAU, Nos 121496–98), Minamiohsawa, Hachioji, Tokyo, 35˚37'N, 139˚23'E, alt. 130m, 21.vi.2002, ex tree trunks, HW Chen; 15♂, 5♀ (SCAU, Nos 121499–518), Tomochi, Kumamoto, 32˚36'N, 130˚51'E, alt. 600m, 17.viii.2002, ex tree trunks, HW Chen; 4♂(SCAU, Nos 121419–22), Iriomote Is., 24˚19'N, 123˚53'E, alt. 150m, 12.vi.1999, ex tree trunks, HW Chen.
Distribution. China( Taiwan), Japan(Honshu, Shikoku, Kyushu, Ryukyu Is.), Korea, Nepal, Philippines, Indonesia, Australia.
Remarks.This species has been reported from southeastern Chinaby Okada 1990. Through our survey in this area, we found a related species, L. sculptaChen & Toda, 1994(see below).