Sinogodavaria tenebrosa, Liu, 2020

Liu, Guang-Chun, 2020, A new genus of the Hypocera group (Diptera, Phoridae), with descriptions of two new species from China, ZooKeys 932, pp. 113-127 : 113

Sinogodavaria tenebrosa sp. nov. Figures 14-20 , 21-26

Specimens examined.

Holotype: China • ♀; Shaanxi, Zuoshui, Mt. Huanghua; 33°46'53.04″N, 108°49'37.91″E; alt. 1935 m; 14 Jul. 2013; Yunlong Cai leg.; sweeping net. Paratypes: China • 1♀; Shaanxi, Zuoshui, Dagangou; 33°47'36.47″N, 108°55'38.17″E; alt. 1299 m; 15 Jul. 2013; Yunlong Cai leg.; sweeping net • 1♀1♂; Shaanxi, Zuoshui, Xigou; 33°49'27.98″N, 108°57'58.85″E; alt. 1197 m; 16 Jul. 2013; Yunlong Cai; sweeping net.

Diagnosis.

Female abdominal tergites uniformly dark brown; tergites II-III rectangular, tergites IV-VI trapezoid. Male tergites mostly dark brown, tergite VI with triangular yellow area at rear edge; hypandrium with a long hockey-stick-shaped fronto-ventral process.

Description.

Female (Fig. 17 ). Frons (Fig. 18 ) dark brown, a little broader than long, with 130-150 setulae and dense microsetae. Median furrow very short, vestigial. Lower interfrontal setae near to front edge, clearly close to each other and ca. 1/2 × as far apart as either is from a lower fronto-orbital seta, which is much higher on frons. Upper interfrontal setae as far apart as either is from an upper fronto-orbital seta, which is slightly higher on frons. Cheek with a single seta and jowl with two longer setae and some setulae. Flagellomere 1 globose, dark brown, with ca. 12 subcuticular pit sensilla; arista sub-apical, with microsetae; scape with dense microsetae. Palpus yellow, with six or seven apical setae and a dozen ventral setulae. Proboscis a little elongate. Labrum yellow, rectangular and a little wider than diameter of flagellomere 1. Labella straw yellow, each with ca. six setae on upper face and a submarginal row of ca. six small setulae below, and with five tracheae.

Thorax mainly dark brown, being brown on sides. Anepisternum with fine setulae on upper part. Notopleura with four setae, the second being smaller than the rest. Scutellum with an anterior pair of small setulae and a posterior pair of setae.

Legs yellow. Fore tibia with a near-dorsal seta at basal two fifths and five small setulae below it. Fore tarsus with a postero-dorsal longitudinal setal palisade on tarsomeres 1-3 only, plus a vestigial palisade in basal third of tarsomere 4. Mid tibia with the normal basal pair of setae and an antero-apical seta. Hind tibia with two dorsal longitudinal setal palisades, one antero-apical seta, one robust ventral spur, and a series of weak posterior and postero-dorsal spurs.

Wing (Fig. 19 ) 3.28 mm long. Costal index 0.58. Costal ratio1:1.68. Costal cilia 45-50 µm long. Vein Rs with 18-20 pale and minute setulae along upper side. Costa thickened around the junction with vein R1. Vein Sc reaching vein R1. Axillary ridge with five long, black, feathered setae. Wing veins yellowish brown and membrane tinged yellowish grey. Haltere yellowish brown, knob black.

Abdominal tergites (Fig. 20 ) uniformly dark brown, venter grayish brown. Tergites I-VI with very sparse short setulae and only a little longer at rear of tergite VI. Tergites II-III rectangular, tergites IV-VI trapezoid. Tergite II is the broadest and narrows gradually posteriorly. Venter greyish brown, with sparse setulae on segments V-VI. Cerci yellowish brown, ca. 3 × as long as broad.

Male (Fig. 14 ). Frons (Fig. 15 ) dark brown, a little broader than long, with 150-160 setulae and dense microsetae. Median furrow shorter than in female. Lower interfrontal setae near to front edge, clearly close to each other and ca. 2/3 × as far apart as either is from a lower fronto-orbital seta, which is much higher on frons. Upper interfrontal setae as far apart as either is from an upper fronto-orbital seta, which is slightly higher on frons. Proboscis shorter than in female. Labrum yellow with a very narrow triangle. Labella straw yellow, each with ca. eight setulae on upper face and a submarginal row of ca. 12 small setulae below.

Thorax similar to female in color and chaetotaxy. Legs yellow. Front tibia with a near-dorsal seta at basal two-fifths and eight or nine small setulae below it. Front tip of hind coxa with a strong, feathered seta, which is more robust than in female. Wing (Fig. 16 ) 2.32 mm long. Costal index 0.53. Costal ratio 1:1.05. Costal cilia 45 µm long. Vein Rs with 16-18 pale minute setulae along upper side. Costa not thickened. Vein Sc reaching vein R1. Axillary ridge with five long, black, feathered setae. Wing veins yellowish brown and membrane tinged yellowish grey. Haltere yellowish brown, knob black.

Abdominal tergites uniformly dark brown, but tergite VI with triangular yellow area at rear edge. Venter greyish brown, with several setulae on segments IV and V; setulae much longer than those on tergites. Tergites with very sparse short setulae, only a little longer at rear of tergite VI. Tergites II-VI rectangular or trapezoid. Tergite II broadest, others narrowing gradually. Cerci yellowish brown, ca. 3 × as long as broad.

Terminalia (Figs 21-26 ). Left side of epandrium slender, rounded apically, with 20-25 setulae and dense microsetae; right side of epandrium large, triangular, with some setulae and dense microsetae. Left side of hypandrium short and wide, with a pointed upper corner. Right side of hypandrium short and rounded. A long hockey-stick-shaped process present at fronto-venter of each side of hypandrium. Aedeagus dark brown, supported by aedeagal apodeme and with a long, curled process. Cerci pale brown, short and with long setulae.

Etymology.

The name refers to the dark color of the species.

Distribution.

China (Shaanxi).

Remarks.

The new species is distinguished from S. multiformis by the uniform color, the shape of the female abdominal tergites, and the long hockey-stick-shaped process at the fronto-venter of the hypandrium.

Figures

Figures 14 - 20. S. tenebrosa sp. nov. 14 - 16 Male 14 lateral view of body 15 head 16 wing 17 - 20 female 17 lateral view of body 18 head 19 wing 20 abdominal tergites. Scale bars: 0.5 mm.

Figures 21 - 26. Male terminalia of S. tenebrosa sp. nov. 21 - 25 left view 22 - 26 right view 23 front view 24 ventral view. Scale bars: 0.1 mm.