Minettia (Minettiella) sasakawai Shi, Wang & Yang, 2011

Shi, Li & Yang, Ding, 2014, Five new species of Minettia (Minettiella) (Diptera, Lauxaniidae) from China, ZooKeys 449, pp. 81-103 : 84-85

Taxon classification Animalia Diptera Lauxaniidae

Minettia (Minettiella) sasakawai Shi, Wang & Yang, 2011

Sapromyza (Sapromyza) acrostichalis Sasakawa, 2001: 50. Type locality: Vietnam.

Minettia (Minettiella) sasakawai nom. n. (comb. n. preoccupied by acrostichalis (Sasakawa & Kozánek, 1995), a new name as a replacement of acrostichalis Sasakawa, 2001)

Minettia (Minettiella) sasakawai Shi, Wang & Yang, 2011: 80 (with figures).

Material examined.

CHINA, Hainan (CAUC): 5 ♂♂, Ledong, Jianfengling National Natural Reserve, Plant garden, 800 m, 8. v. 2008, Qifei Liu; 1 ♂, Ledong, Jianfengling National Natural Reserve, Sanfenqu, 800 m, 8. v. 2008, Qifei Liu; 2 ♂♂, Ledong, Jianfengling National Natural Reserve, Plant garden, 800 m, 18. v. 2006, Gang Yao; 3 ♂♂, 2 ♀♀, Changjiang, Bawangling National Natural Reserve, Donger station, 1000 m, 24-25. v. 2007, Junhua Zhang; 1 ♂, Baisha, Yinggeling National Natural Reserve, 2. iv. 2006, Hui Dong; 1 ♂, 1 ♀, Baisha, Yinggeling National Natural Reserve, Hongmao village, 430 m, 21-22. v. 2007, Kuiyan Zhang; 1 ♂, Baisha, Yinggeling National Natural Reserve, Hongmao village, 430 m, 21-22. v. 2007, Junhua Zhang; 1 ♀, Baisha, Yinggeling National Natural Reserve, Hongmao village, 430 m, 21. v. 2007, Yongjie Wang.

Diagnosis.

Body black with brownish gray. Face and parafacial black flat with dense whitish gray pruinosity. Antennal 1st flagellomere blackish brown except yellow at base. Mesonotum 0+2 dc (anterior dc far behind transverse scutal suture), acr in 4 rows; a pair of long acr present in front of prsc. Legs mostly black except fore basal tarsus dark yellow on basal 3/4 and mid and hind tarsi dark yellow. Basal part of wing yellow. Abdomen shining black with sparse brownish gray pruinosity.

Redescription.

MALE. Body length 3.2-4.1 mm, wing length 3.4-4.4 mm. FEMALE. Body length 3.4-3.7 mm, wing length 3.6-3.9 mm.

Head black. Frons shining black except yellow, slightly concaved anterior margin; oc slightly longer than anterior or. Gena about 1/6 height of eye. Antenna scape and pedicel yellowish brown, 1st flagellomere blackish brown except yellow on basal part, 1st flagellomere nearly 1.8 times longer than high; arista with microscopic setulae. Proboscis black except yellow at apex; palpus black.

Thorax black with brownish gray pruinosity. Mesonotum with 0+2 dc (anterior dc far behind transverse scutal suture), acr in 4 rows; a pair of long acr present in front of prsc, prsc nearly as long as 1st postsutural dc; 1 ia, 1 kepst. Legs with fore basal tarsus dark yellow on basal 3/4 and mid and hind tarsi dark yellow. Fore femur with 5 pv, 8 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, 1 strong apv. Hind femura with 1 weak preapical ad, hind tibia with 1 weak preapical ad and 1 short apv. Wing: 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 6:1.7:1; 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 black with sparse brownish gray pruinosity. Male genitalia: protandrium semicircular (with a weak ventral bridge in a few specimens), narrow under spiracle; epandrium slender, with dorsal setae in lateral view; surstylus separated from epandrium, slender, narrow apically with a falcate apical process in lateral view; hypandrium very narrow at middle and broad on two lateral sides; postgonite columnar with two long setae; aedeagus acute apically with a tiny incision in ventral view but oblique truncate apically in lateral view; aedeagal apodeme nearly as long as aedeagus. Female terminalia: tergite 6 with a pair of long dorsal setae on posterior margin; spermathecae 2+1, round.

Distribution.

China (Hainan), Vietnam.

Remarks.

The species is very similar to Minettia (Minettiella) tianmushanensis sp. n. from Zhejiang (see Minettia (Minettiella) tianmushanensis sp. n.). The new species is also similar to Minettia (Minettiella) atrata from Indonesia (Java) in the following characters: mesonotum with 0+2 dc and a pair of long acr present in front of prsc, but it can be separated from the latter by the arista having microscopic setulae, the mesonotum having the acr in 4 rows, and the legs mostly black except the fore basal tarsus dark yellow on basal 3/4 and the mid and hind tarsi dark yellow. In Minettia (Minettiella) atrata , the arista is short plumose, the mesonotum has acr in 6 rows and the hind tarsi is yellow ( Meijere 1910).