Epiphragma (Epiphragma) yunnanense, 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: 48-49

publication ID

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

persistent identifier

http://treatment.plazi.org/id/03C58794-407E-FFE3-FF24-76590C4AFE6D

treatment provided by

Plazi

scientific name

Epiphragma (Epiphragma) yunnanense
status

sp. nov.

Epiphragma (Epiphragma) yunnanense   sp. nov.

( Figs. 2 View FIGURES 1 – 5 , 12– 17 View FIGURES 12 – 17 )

Diagnosis. Vertex with center of anterior half dark brown. Wing with conspicuous brown patterning, chiefly ocelliform, with narrow dark brown margining. Femora yellow with two dark brown rings, first at 2 / 3 length of femora, second subapical, longer than yellow tip. Outer gonostylus broad. Inner gonostylus slender, at about 2 / 3 length bent at strong angle into flattened blade. Interbase with a very long and slender rod beyond base, nearly as long as gonocoxite, arcuate in basal half, base triangular connected with one small ellipsoidal hole.

Description. Male. Body length 9.3–10.8 mm, wing 10.2–11.5 mm.

Head. Brownish yellow. Vertex with center of anterior half dark brown. One median tubercle between eyes. Hairs on head black. Antenna 1.8–2.1 mm. Scape blackish brown, pedicel yellowish brown; flagellum 13 -segmented with two basal segments fused, fusion-segment yellow, succeeding segments brown, flagellomeres cylindrical, with longer verticils. Proboscis brown with black hairs; palpus black with black hairs.

Thorax. General yellowish brown. Pronotum brown with one black stripe. Prescutum yellowish brown, narrowly margined with dark brown. Scutum light brownish yellow, median area brown. Scutellum yellow with pale gray pollen. Mediotergite brownish yellow with pale gray pollen, anterior and lateral borders dark brown. Pleura yellowish brown, variegated by paler areas. Hairs on thorax black. Coxae pale brown; trochanters brownish yellow; femora yellow with two dark brown rings, first at 2 / 3 length of femora, second subapical, longer than yellow tip; tibiae brownish yellow with one spur; tarsi brownish yellow with tips light yellow. Hairs on legs black.

Wing ( Fig. 2 View FIGURES 1 – 5 ) whitish hyaline, with conspicuous brown patterning, chiefly ocelliform, with narrow dark brown margining. Base of wing yellowish brown; two large ocellate circles on anterior half of wing; one irregular crossband at cord extending from vein C to vein CuA 2, separated from another oblique band from tip of R 3 to cell CuA 1 by pale stripe; one irregular patterning with five branches to wing tip, respectively at tips of veins R 4, R 5, M 1, M 2, M 3; one small quadrate spot at tip of vein CuA 1; one brown area extending from tips of cell Cu to cell A 1; one large subquarate patterning across midlength of cells Cu and A 1, ending at tip of cell A 2; two additional brown areas at base and midlength of cell A 2. R 2 + 3 + 4 subequal to R 2 + 3 in length; m-cu straight, at near 1 / 3 length of cell dm. Halter 1.4–1.7 mm long, brown except base of stem and apex of knob pale yellow.

Abdomen. Tergites brownish black, with narrow median brownish yellow line, lateral margins pale brown. Sternites brown. Hairs on abdomen black.

Hypopygium ( Figs. 12–17 View FIGURES 12 – 17 ). Posterior margin of tergite 9 ( Fig. 12 View FIGURES 12 – 17 ) with subtrigonal lobe on each side of median V-shaped notch. Outer gonostylus ( Fig. 13 View FIGURES 12 – 17 ) broad with tip curved into slender spine. Inner gonostylus ( Fig. 14 View FIGURES 12 – 17 ) slender, at about 2 / 3 length bent at strong angle into flattened blade. Interbase ( Fig. 16 View FIGURES 12 – 17 ) with a very long and slender rod beyond base, nearly as long as gonocoxite, arcuate in basal half, base triangular connected with one small ellipsoidal hole.

Female. Body length 12.5 mm, wing 12.0 mm. Similar to male. Cerci reddish brown; hypovalves brown.

Type material. Holotype male, Yunnan: Baoshan, Baihualing, Wenquan (1650 m), 25 ° 17 ΄ 16 ʺN 98 ° 47 ΄ 32 E, 2007. V. 29, Xingyue Liu. Paratypes: 3 males 1 female, same data as holotype; 2 males, Yunnan: Baoshan, Baihualing, Wenquan (1650 m), 25 ° 17 ΄ 16 ʺN 98 ° 47 ΄ 32 E, 2007. V. 29, Ruier Nie.

Distribution. China (Yunnan).

Etymology. The species is named after the type locality Yunnan.

Remarks. This new species is somewhat similar to E. evanescens Alexander, 1940   from China (Zhejiang) and Japan (Hokkaido, Honshu, Shikoku) in having the similar patterning of the wing, but it can be separated from the latter by the femora with two brown rings and m-cu straight, at near 1 / 3 the length of cell dm. In E. evanescens   , the femora have a subobsolete pale brown ring before the tip; m-cu is strongly sinuous, near the basal portion of cell dm ( Alexander, 1940). Conversely, the leg patterning of the new species is similar to that of the widespread species E. ocellare (Linnaeus, 1760)   , but the wing patterning and the interbase are very different. In E. yunnanense   sp. nov., the interbase has a very long and slender rod beyond the base, nearly as long as the gonocoxite, arcuate in basal half, the base is triangular and connected with one small ellipsoidal hole. The base of the interbase is very enlarged, the rod is short and curved into a long spine in E. ocellare   .

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Limoniidae

Genus

Epiphragma