Minettia (Minettiella) atratula (Meijere, 1924)

Shi, Li & Yang, Ding, 2014, Five new species of Minettia (Minettiella) (Diptera, Lauxaniidae) from China, ZooKeys 449, pp. 81-103 : 83

Taxon classification Animalia Diptera Lauxaniidae

Minettia (Minettiella) atratula (Meijere, 1924) Figs 1- 5, 31- 32

Lauxania atratula Meijere, 1924: 49. Type locality: Indonesia (Sumatra).

Minettia (Minettiella) atratula : Malloch 1929: 26. Shewell 1977: 190. Shatalkin 1996: 147. Jong 2000: 32.

Material examined.

2 ♂♂, 1♀ (CAUC), CHINA, Hainan: Ledong, Jianfengling National Natural Reserve, Tianchi, 800 m, 18. v. 2006, Hui Dong; 1♂ (CAUC), CHINA, Hainan: Ledong, Jianfengling National Natural Reserve, Tianchi, 800 m, 18. v. 2006, Gang Yao.

Diagnosis.

Mesonotum 1+3 dc, acr in 2 rows with 1+3 long acr. Fore tibia yellowish brown with yellow at base and black at apex, mid tibia yellow and hind tibia yellow with brown at apex; fore tarsi with basitarsus yellow on basal 3/4 and tarsomeres 2-5 brown, mid and hind tarsi with tarsomeres 1-2 dark yellow and tarsomeres 3-5 pale brown. Mid femur with 4 a.

Redescription.

MALE. Body length 3.3-3.5 mm, wing length 3.4-3.5 mm. FEMALE. Body length 3.8 mm, wing length 3.9 mm.

Head. Frons slightly concave with narrow yellow anterior margin. Gena about 1/4 eye height. Antenna scape and pedicel yellowish brown to brown, 1st flagellomere blackish brown with yellow at base and nearly 2.3 times longer than high; arista bare. Proboscis black with dark yellow at apex. Palpus black.

Thorax with brownish gray pruinosity. Mesonotum with 1+3 dc, acr in 2 rows with 1+3 long acr in front of prsc and one pair of prsc as long as 1st postsutural dc. Legs: fore tibia mostly yellowish brown with yellow at base and black at apex; mid tibia yellow and hind tibia yellow with brown at apex; fore tarsi with basitarsus yellow on basal 3/4 and tarsomeres 2-5 brown, mid and hind tarsi with tarsomeres 1-2 dark yellow and tarsomeres 3-5 pale brown. Fore femur with 4 pv and 6 pd, fore tibia with 1 long preapical ad and 1 short apv. Mid femur with 4 a and 1 app; mid tibia with 1 strong preapical ad and 1 strong apv. Hind femura with 1 preapical ad, and hind tibia with 1 weak preapical ad and 1 short apv. Wing with costa with 2nd (between R1 and R2+3), 3rd (between R2+3 and R4+5) and 4th (between R4+5 and M1) sections in proportion of 6.7:1:1, r-m at middle of discal cell; ultimate and penultimate sections of M1 in proportion of 1:1.1; ultimate section of CuA1 about 1/6 of penultimate section.

Abdomen with sparse brownish gray pruinosity. Male genitalia (Figs 1-5): syntergosternite semicircular with three pairs of dorsal setulae, epandrium narrow basally and broad apically, with a deep concave on anterior ventral margin and a digitiform anterior process, triangular apically in lateral view; surstylus separated from epandrium, elliptical in lateral view but crescent-shaped in posterior view; hypandrium nearly Y-shaped; postgonite forming a complete sclerite, with a median ridge; aedeagus consisting of a pair of clavate inner sclerites with short setulae and a pair of dorsolateral concaves, rounded apically; height of aedeagal apodeme nearly as long as aedeagus and broad in ventral view. Female terminalia (Figs 31-32): sternite 8 with a brown U-shaped spot, spermathecae 2+1, elliptical.

Distribution.

China (Hainan, Taiwan), Indonesia (Sumatra), Vietnam.