Minettia (Minettiella) bawanglingensis, Shi, Li & Yang, Ding, 2014

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) bawanglingensis sp. n. Figs 6- 10, 33- 34

Type material.

Holotype: ♂ (CAUC), CHINA, Hainan: Changjiang, Bawangling National Natural Reserve, Dong’er station, 1000 m, 24. v. 2007, Kuiyan Zhang. Paratype: 1♀ (CAUC), CHINA, Hainan: as holotype.

Etymology.

The new species is named after the type locality Bawangling National Natural Reserve.

Diagnosis.

Arista pubescent, with longest rays about 1/4 height of 1st flagellomere. Mesonotum with 0+2 dc, acr in 6 rows, two pairs of long acr. Mid femur with 3 a.

Description.

MALE. Body length 4.4 mm, wing length 4.2 mm. FEMALE. Body length 4.0 mm, wing length 3.9 mm.

Head. Frons slightly concaved with yellow anterior margin. Gena about 1/6 eye height. Antenna blackish brown, 1st flagellomere yellow at base, and 1st flagellomere nearly 1.6 times longer than high; arista pubescent, with longest rays about 1/4 height of 1st flagellomere. Proboscis black with dark yellow at apex and palpus black.

Thorax with brownish gray pruinosity. Mesonotum 0+2 dc (anterior dc far behind transverse scutal suture), acr in 6 rows; two pairs of long acr present in front of prsc, prsc slightly shorter than 1st post-sutural dc. Legs: tibia black with yellow at base, mid and hind tarsi yellow. Fore femur with 4 pv and 8 pd, fore tibia with 1 short preapical ad and 1 short apv. Mid femur with 3 a and 1 app; mid tibia with 1 strong preapical ad and 1 strong apv. Hind femura with 1 weak preapical ad, 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 7:1.3:1; r-m beyond middle of discal cell; ultimate and penultimate sections of M1 in proportion of 1:1; ultimate section of CuA1 about 1/7 of penultimate section.

Abdomen with sparse brownish gray pruinosity. Male genitalia (Figs 6-10): syntergosternite circular with a weak ventral bridge, epandrium with a tiny subapical concave, surstylus separated from epandrium, consisting of a long claviform process with setulae in lateral view and with a long triangular process in posterior view; hypandrium slender, projecting medially and nearly V-shaped; postgonite contorting, consisting of an acute triangular apical process and three apical setae; aedeagus columnar, truncate basally and blunt rounded apically, consisting of a triangular dorsal process subapically in lateral view and a black bottle-shaped inner process with an elliptical incision and many spiculate processes in ventral view; aedeagal apodeme narrow and short, projecting forwards, nearly right angle between hypandrium and aedeagus. Female terminalia (Figs 33-34): sternite 7 trapeziform with long setae on posterior margin, sternite 8 semicircular with three pairs of long setae on posterior margin and sternite 9 with a groove; spermathecae 2+1, round and all stems leading to the three spermathecae narrow apically.

Remarks.

The new species is very similar to Minettia (Minettiella) dolabriforma from the Palaearctic region in the following characteristics: mesonotum 0+2 dc, legs black with base of tibia yellow and mid and hind tarsi yellow, but it can be separated from the latter in the following characteristics: surstylus consisting of a long claviform process with setulae in lateral view and with a long triangular process in posterior view; hypandrium projecting medially and nearly V-shaped; aedeagus consisting of a triangular dorsal process subapically in lateral view and a black, bottle-shaped inner process with an elliptical incision and many speculate processes in ventral view. In Minettia (Minettiella) dolabriforma , the surstylus has a spatulate process, narrow ventrally and pointed at apex in lateral view; the hypandrium is U-shaped; the aedeagus is pointed dorsoapically with a lobate dorsal process in lateral view, and is spinulose and brownish-striated on the median ventral membrane in ventral view ( Sasakawa 1995). The new species is also similar to Minettia (Minettiella) atrata from Indonesia (Java) in mesonotum with 0+2 dc and a pair of long acr present in front of prsc, but it can be separated from the latter in the arista having microscopic setulae, and the mid and hind tarsi being yellow. In Minettia (Minettiella) atrata , the arista is short plumose and only the hind tarsi are yellow ( Meijere 1910).

Distribution.

China (Hainan).