Minettia (Plesiominettia) bicolorata Li & Bai & Yang 2023, sp. nov.
Creators: name: Li, Wenliang
name: Bai, Yingming
name: Yang, Ding
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Lauxaniidae
Minettia
Minettia bicolorata

description: Minettia (Plesiominettia) bicolorata sp. nov.
(Figs. 1–10)
Diagnosis. Frons wider than long and parallel-sided, with two black longitudinal stripes along fronto-orbital rows and one triangular black longitudinal stripe extending from ocellar triangle to anterior margin of frons; the tip and dorsal margin of first flagellomere brown; mesonotum with a pair of black median longitudinal stripes and a pair of post-sutural black lateral longitudinal stripes; abdominal tergite 1 brownish yellow, anterior margin of tergite 2 with one triangular brownish yellow area.
Description. MALE. Body length 3.8 mm, wing length 5.0 mm. FEMALE. Body length 3.5–3.8 mm, wing length 4.6–4.9 mm.
Head (Fig. 1) blackish brown, with grayish white pruinescence. Parafacial yellow, brown between eye and antennal bases. Frons brownish yellow except anterior margin yellow, wider than long and parallel-sided, with two black longitudinal stripes along fronto-orbital rows and one triangular black longitudinal stripe extending from ocellar triangle to anterior margin of frons; ocellar triangle black, ocellar setae almost as long as reclinate anterior fronto-orbital setae, which are shorter than posterior fronto-orbital setae. Gena about 1/6 height of eye. Antenna yellow, tip and dorsal margin of first flagellomere brown, 1.7 times longer than high; arista blackish brown except paler basally, pubescent with longest setulae shorter than 1/2 height of first flagellomere. Proboscis blackish brown, with white and black setulae; palpus black with black setulae.
Thorax (Fig. 4) blackish brown, with grayish white pruinescence. Mesonotum with a pair of black median longitudinal stripes and a pair of post-sutural black lateral longitudinal stripes. 0+3 dorsocentral setae; acrostichal setulae in eight rows; a pair of strong prescutellar setae, as long as first post-sutural dorsocentral seta, and closer to scuto-scutellar suture than third post-sutural dorsocentral seta. One anepisternal seta, two katepisternal setae. Fore legs blackish brown, fore tibia and tarsi yellow at base; mid and hind femora blackish brown, tibia yellow at base, with brown ring at basal 1/3 and apex, tarsi yellow except brown at tip. Fore femur with eight posterior dorsal setae, eight posterior setae and six posterior ventral setae; fore tibia with one dorsal preapical seta and one short apical ventral seta. Mid femur with six anterior setae; mid tibia with one strong dorsal preapical seta and one strong apical ventral seta. Hind femur with two preapical anterior dorsal setae; hind tibia with one dorsal preapical seta. Wing (Fig. 2) hyaline and yellow at base; costa with 2nd (between R 1 and R 2+3), 3rd (between R 2+3 and R 4+5), and 4th (between R 4+5 and M 1) sections in proportion of 13.7: 4.1: 2.0; r-m before middle of discal cell; ultimate and penultimate sections of M 1 in proportion of 9.8: 6.6; ultimate section of CuA 1 about 1/6 of penultimate. Haltere pale yellow.
Abdomen (Fig. 5) mostly blackish brown, with grayish white pruinescence, tergite 1 brownish yellow, anterior margin of tergite 2 with one triangular brownish yellow area. Male genitalia (Figs. 6–10): syntergosternite circular. Epandrium nearly trapeziform, surstylus broad in lateral view; hypandrium with a pair of short inner processes. Postgonite tapering apically, curved inwards in lateral view. Phallapodeme slightly shorter than phallus; phallus without concavity apically, consisting of one ventral sclerite and a pair of dorsal sclerites, with many claviform sclerotized structures inside.
Type material. Holotype (CAUC): ♁, CHINA, Yunnan Province: Baoshan Baihualing hot spring, 2006. V. 23, Xingyue Liu. Paratypes (CAUC): 1♀, CHINA, Yunnan Province: Nujiang Liuku Yaojiaping, 2006. V. 25, Yajun Zhu; 1♀, CHINA, Yunnan Province: Baoshan Tengchong Zizhicun, 2007. V. 31, Yanlei Li.
Distribution. China (Yunnan)
Etymology. Latin, bicolorata, referring to the color of abdomen consists of blackish brown and brownish yellow.
description: Published as part of Li, Wenliang, Bai, Yingming & Yang, Ding, 2023, The genus Minettia Robineau-Desvoidy, 1830 (Diptera: Lauxaniidae: Lauxaniinae) from the Oriental Region with descriptions of seventeen new species, pp. 201-249 in Zootaxa 5256 (3) on pages 205-207, DOI: 10.11646/zootaxa.5256.3.1, http://zenodo.org/record/7751440