Impatiophila menba Fu & Gao

Fu, Zhao, Toda, Masanori J., Li, Nan-Nan, Zhang, Ya-Ping & Gao, Jian-Jun, 2016, A new genus of anthophilous drosophilids, Impatiophila (Diptera, Drosophilidae): morphology, DNA barcoding and molecular phylogeny, with descriptions of thirty-nine new species, Zootaxa 4120 (1), pp. 1-100 : 83-85

42) Impatiophila menba Fu & Gao , sp. nov.

( Fig. 48 ; Pl. 5E; Pl. 7O)

Diagnosis. Male abdominal sternite VI longer than wide. Tenth sternite somewhat rhombic, largely triangularly convex on dorsomedial margin ( Fig. 48 D). Paramere nearly straight in lateral view ( Fig. 48 F). Hypandrium somewhat triangular, narrowing anteriorly in dorsal/ventral view ( Fig. 48 E). Oviscapt valve with 4 dorsal ovisensilla ( Fig. 48 G).

Description (♂, ♀). Head: Cibarium with 3−4 medial sensilla per side ( Fig. 48 B).

Male terminalia ( Fig. 48 A −F): Epandrium pubescent except for dorsocentral and ventromarginal portions, with ca. 19 long setae on ventral half. Surstylus with 2 thick setae in addition to 1 stout, upturned prensiseta at and above caudodorsal corner and 4 prensisetae along distal margin. Cercus with ca. 20 long setae. Paramere with 5 sensilla. Aedeagal basal process distally expanded and somewhat fan-shaped in lateral view, about 2/3 length of paramere. Female terminalia ( Fig. 48 G, H; Pl. 7O): Oviscapt valve with 14−15 lateral and 6 ventral ovisensilla. Spermatheca capsule pale brown; introvert depth of duct about 1/4 of capsule height.

Measurements: BL = 2.07 (5♂ paratypes: 1.57−2.18, 5♀ paratypes: 1.88−2.13) mm, ThL = 0.87 (0.64−0.92, 0.77−0.85) mm, WL = 1.80 (1.57−1.93, 1.65−1.90) mm, WW = 0.84 (0.64−0.92, 0.77−0.85) mm.

Indices: arb = 3/1 (5♂, 5♀ paratypes: 2−3/1), FW/HW = 0.44 (0.43−0.48), ch/o = 0.10 (0.08−0.15), prorb = 1.06 (0.92−1.10), rcorb = 0.72 (0.57−0.76), orbito = 1.38 (1.06−1.40), vb = 0.29 (0.28−0.42), dcl = 0.56 (0.46−0.63), dcp = 0.59 (0.45−0.62), sterno = 0.58 (0.54−0.63), m-sterno = 0.60 (0.56−0.78), sctl = 1.09 (0.94−1.10), sctlp = 0.98 (0.92−1.25), C = 2.33 (2.16−2.46), 4c = 0.96 (0.92−1.10), 4v = 1.78 (1.69−2.00), 5x = 2.02 (1.59−1.90), ac = 2.38 (2.47−3.11), M = 0.44 (0.46−0.57), C3F = 0.16 (0.00−0.23).

Holotype. ♂ (#00307), along the way form the Yarang Village to the seat of the Motuo County, Linzhi, Xizang, China, 1.x.2010, ex flowers of Gesneriaceae sp.2 ( Fig. 1 J), J.J. Gao ( KIZ).

Paratypes. CHINA: 4♂, 5♀ (#00308, #00467, #00468, #00473−00475, #00477−00479), same as holotype; 1♂, 1♀ (#00372, #00481), from the seat of the Beibeng Town to the Yarang Village, Motuo Town, Motuo County, Linzhi, Xizang, 1.x.2010, ex flowers of Impatiophila sp.4? ( Fig. 1 D), J.J. Gao; 1♂ (#00483), Beibeng Town, Motuo County, Linzhi, Xizang, 29°14′36′′N, 95°10′12′′E, ca. 783 m, 30.ix.2010, ex flowers of Impatiophila sp.4 ( Fig. 1 D), J.J. Gao ( KIZ, SEHU).

Distribution. China (Xizang).

Etymology. Pertaining to the Menba people inhabiting the type locality.

Figures

FIGURE 1. Flowers from which some of the BVD (Impatiophila gen. nov.) flies employed in the present study were collected. Sites of photographing are given in parentheses (see Fig. 2 for detailed information about each site). A, Impatiens siculifer Hook. f. (site 3); B, Impatiens sp. aff. bahanensis Hand. - Mazz (site 2); C, Impatient desmantha Hook. f. (site 1), D, Impatiens arguta Hook. f. et. Thoms. (site 4); E, Impatiens radiata Hook. f. (site 10); F, Impatiens racemosa (site 17); G, Gesneriaceae sp. 1 (site 22); H, Impatiens siculifer Hook. f. (site 6); I, Impatiens uniflora Hayata (site 23); J, Gesneriaceae sp. 2 (site 6).

FIGURE 48. Impatiophila menba Fu & Gao, sp. nov. Adult male (holotype, # 00307) and female (paratype, # 00308): A, periphallic organs (caudolateral view); B, caudoventral part of epandrium; C, surstylus (caudal view); D, tenth sternite; E, phallic organs (dorsal view); F, phallic organs (lateral view); G, oviscapt (lateral view); H, oviscapt (ventral view).