Epiphragma (Epiphragma) ancistrum, Mao, Meng & Yang, Ding, 2009

Mao, Meng & Yang, Ding, 2009, New species of the genus Epiphragma Osten Sacken from Yunnan, Southwest China (Diptera, Limoniidae), Zootaxa 2121, pp. 44-56: 50-51

publication ID

http://doi.org/ 10.5281/zenodo.188118

persistent identifier

http://treatment.plazi.org/id/03C58794-407C-FFE1-FF24-77BE09D5F98F

treatment provided by

Plazi

scientific name

Epiphragma (Epiphragma) ancistrum
status

sp. nov.

Epiphragma (Epiphragma) ancistrum   sp. nov.

( Figs. 3 View FIGURES 1 – 5 , 18– 23 View FIGURES 18 – 23 )

Diagnosis. Femora yellow with two dark brown rings, first behind midlength of femora, second subapical, subequal to yellow tip in length. Wing brown, with small white spots, margin narrow dark brown. Posterior margin of tergite 9 with two small submedian lobes, median area salient with small prominence. Inner gonostylus hairy, with apical half dilated, tip curved into small spine. Interbase with base oblonged, 2 / 3 as slender rod, thicker in basal half, apex a sharp point and slightly curved inward.

Description. Male. Body length 7.2–7.6 mm, wing 8.0– 8.5 mm.

Head. Brownish yellow except dorsal surface of rostrum brownish. One small median tubercle between eyes. Hairs on head black. Antenna 1.9 –2.0 mm. Scape and pedicel brownish yellow, flagellum 13 -segmented with two basal segments fused, fusion-segment yellow, succeeding segments brownish black, flagellomeres cylindrical, apical segments elongate, subequal to longest verticils. Proboscis brown with black hairs; palpus black with black hairs.

Thorax. General brown. Pronotum light brown. Prescutum brown with median area pale brownish yellow. Scutum brown with median area brownish black. Scutellum brown. Mediotergite blackish brown with pale gray pollen. Anepisternum and katepisternum reddish brown. Anepimeron and katepimeron pale yellow. Hairs on thorax black. Coxae and trochanters light brownish yellow; femora yellow with two dark brown rings, first behind midlength of femora, second subapical, subequal to yellow tip in length; tibiae yellow with one spur; tarsi light yellow with tips brown. Hairs on legs black.

Wing ( Fig. 3 View FIGURES 1 – 5 ) brownish with small white spots, margin narrow dark brown. Anterior half of wing with spots in cell C, around spur of Rs, in cells Cu and A 2; anterior half of cell A 1 white; posterior half of wing with spots more scattered, especially at tips of all cells; one narrow crossband extending from tip of vein R 1 to cell dm. Stigma solidly dark brown. R 2 + 3 + 4 a little longer than R 2 + 3; m-cu just behind 1 / 3 length of cell dm. Halter 1.4–1.5 mm long, brownish yellow except base of stem light yellow and knob blackish brown.

Abdomen. Tergites brownish black, with narrow median brown line, posterior margins brownish yellow. Sternites 1–7 brownish yellow, sternites 8–9 brownish black. Hairs on abdomen black.

Hypopygium ( Figs. 18–23 View FIGURES 18 – 23 ). Posterior margin of tergite 9 ( Fig. 18 View FIGURES 18 – 23 ) with two small submedian lobes, median area salient with small prominence. Outer gonostylus ( Fig. 19 View FIGURES 18 – 23 ) slender, hairy, with tip curved into spine. Inner gonostylus ( Fig. 20 View FIGURES 18 – 23 ) hairy, with apical half dilated, tip curved into small spine. Interbase ( Fig. 22 View FIGURES 18 – 23 ) with base oblonged, 2 / 3 as slender rod, thicker in basal half, apex a sharp point and slightly curved inward.

Female. Unknown.

Type material. Holotype male, Yunnan: Jinping (1100 m), 22 ° 47 ΄ 32 ʺN 103 °05΄ 12 ʺE, 2006. V. 18, Junhua Zhang. Paratype 1 male, Yunnan: Jinping, Yakou (1600 m), 22 ° 46 ΄ 10 ʺN 103 °03΄0 1 ʺE, 2006. V. 18, Junhua Zhang.

Distribution. China (Yunnan).

Etymology. The specific name refers to the hook-like tip of the inner gonostylus.

Remarks. This new species is somewhat similar to E. bicinctiferum Alexander, 1935   from China (Sichuan) in having the similar patterning of the femora, but it can be separated from the latter by the patterning of wing, inner gonostylus with apical half dilated and tip curved into small spine, and interbase with the base oblonged, 2 / 3 as slender rod, thicker in basal half, apex a sharp point and slightly curved inward. In E. bicinctiferum   , the wing is whitish with a handsome buffy brown patterning that is bordered by dark brown; the inner gonostylus has an obtuse tip, and the interbase is a long and slender, filiform rod ( Alexander, 1935).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Limoniidae

Genus

Epiphragma