Limnellia luchunensis, Zhang, Junhua & Yang, Ding, 2009

Zhang, Junhua & Yang, Ding, 2009, Species of the genus Limnellia from China (Diptera: Ephydridae), Zootaxa 2308, pp. 58-64 : 60-61

Limnellia luchunensis sp. nov.

( Figs. 4–6 )

Diagnosis. Palpi light brown; legs black; wings with three large and one small white markings in R1 cell ( Fig. 4 ); halters light brown.

Material studied. Holotype 3, China, Yunnan, Luchun, Huanglianshan Nature Reserve 23°00'N, 102°24'E, 22.V.2006, Junhua Zhang leg.

Description. Male. Body length: 1.60 mm, wing length: 1.73 mm.

Head subshiny black with brownish yellow microtomentum; frons with brownish yellow microtomentum; face and cheek black with grayish white microtomentum. 2 vertical setae; 1 strong lateroclinate orbital seta; 1 pair of strong ocellar setae. Face with strong setae. Gena with 1 strong seta. Antenna black. Palpi light brown. Gena-to-eye ratio 0.12.

Thorax subshiny black; mesonotum with guttate markings. 1 presutural seta; 2 strong dorsocentral setae (0+2); 2 notopleural setae; 1 strong supra-alar seta. Anepisternum with 1 strong seta at posterior margin; katepisternum with 1 strong seta. Scutellum black, with 1 pair of scutellar setae. Legs black. Wings with three distinct white markings in R1 cell ( Fig. 4 ). Costal vein ratio 0.23. M vein ratio 0.80. Halters light brown.

Abdomen subshiny black with thin brownish yellow microtomentum.

Male genitalia ( Figs. 5–6 ). Epandrium as long as wide, rounded dorsally and truncate ventrally in posterior view ( Fig. 5 ); surstyli subquadrangular, as long as wide, not fused with ventral margin of epandrium in posterior view ( Fig. 5 ); aedeagus with slender projection ( Fig. 6 ); phallapodeme as a slender process attached to posterodorsal portion of aedeagus ( Fig. 6 ).

Distribution. China (Yunnan).

Remarks. Limnellia luchunensis sp. nov. is distinctly from other known species in the following combination characters: palpi light brown; legs black; wings with three large and one small white markings in R1 cell; halters light brown; epandrium as long as wide, rounded dorsally and truncate ventrally in posterior view; surstyli subquadrangular, as long as wide; aedeagus with slender projection; phallapodeme as a slender process attached to posterodorsal portion of aedeagus.

Etymology. The specific epithet, luchunensis , refers to the type locality Luchun.

Figures

FIGURES 4 – 6. Limnellia luchunensis sp. nov., male. 4. Wing; 5. epandrium and sustyli, posterior view; 6. aedeagus, gonite and phallapodeme, ventral view.