Minettia ( Plesiominettia ) spiniphallata, Li & Bai & Yang, 2023

Minettia ( Plesiominettia) spiniphallata View in CoL sp. nov.

( Figs. 101–109 View FIGURES 101–104 View FIGURES 105–109 )

Diagnosis. Orbits yellow; Frons with two black longitudinal stripes along fronto-orbital rows extending to ocellar triangle and one yellow triangular longitudinal stripe extending from ocellar triangle to anterior margin of frons; mesonotum with three white longitudinal stripes extending to scutoscutellar suture; 1+3 dorsocentral setae.

Description. MALE. Body length 4.8 mm, wing length 6.3 mm. FEMALE. Unknown.

Head ( Fig. 101 View FIGURES 101–104 ) blackish brown, with grayish white pruinescence, orbits yellow. Face black. Frons as long as wide and parallel-sided, with two black longitudinal stripes along fronto-orbital rows extending to ocellar triangle and one yellow triangular longitudinal stripe extending from ocellar triangle to anterior margin of frons; ocellar triangle black, ocellar setae stubby, almost as long as anterior fronto-orbital setae; anterior fronto-orbital setae reclinate, almost as long as 1/2 length of posterior fronto-orbital setae. Gena about 1/5 height of eye. Antenna brown, first flagellomere yellow at base, 1.6 times longer than high; arista blackish brown except paler basally, pubescent with longest setulae shorter than 1/4 height of first flagellomere. Proboscis blackish brown, with white and black setulae; palpus black with black setulae.

Thorax ( Fig. 104 View FIGURES 101–104 ) blackish brown, with grayish white pruinescence. Mesonotum with three white longitudinal stripes extending to scutoscutellar suture; 1+3 dorsocentral setae; acrostichal setulae in eight irregular rows, a pair of strong prescutellar setae, longer than first post-sutural dorsocentral setae. One anepisternal seta, two katepisternal setae. Fore legs blackish brown, fore tarsomeres 1–3 yellow, tarsomeres 2–3 black on basal dorsum, tarsomeres 4–5 black; mid and hind legs blackish brown, tarsi yellow except brown at tip. Fore femur with seven posterior dorsal setae, seven posterior setae and seven posterior ventral setae; fore tibia with one dorsal preapical seta and one short apical ventral seta. Mid femur with eight anterior setae; mid tibia with one strong dorsal preapical seta and three strong apical ventral setae. Hind femur with one preapical anterior dorsal seta; hind tibia with one dorsal preapical seta. Wing ( Fig. 102 View FIGURES 101–104 ) 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 9.0: 2.0: 1.5; r-m before middle of discal cell; ultimate and penultimate sections of M 1 in proportion of 6.7: 3.8; ultimate section of CuA 1 about 1/6 of penultimate. Haltere pale yellow, except knob black.

Abdomen black, with grayish white pruinescence. Male genitalia ( Figs. 105–109 View FIGURES 105–109 ): syntergosternite circular and broad, nearly triangular in lateral view. Surstylus stubby, separated from epandrium, curved backward in lateral view and curved inward in posterior view; hypandrium without inner process. Postgonite short, with setae of different lengths. Phallapodeme stubby, shorter than phallus; phallus consisting of one ventral sclerite and one dorsal sclerite, with dense small membranous spiny processes on apical 1/2.

Type material. Holotype ( CAUC): ♁, CHINA, Yunnan Province: Baoshan Tengchong Zizhicun , 2007. V. 31, Xingyue Liu.

Distribution. China ( Yunnan)

Remarks. The new species is somewhat similar to Minettia ( Plesiominettia) orbitalis sp. nov. (see remarks under Minettia ( Plesiominettia) orbitalis sp. nov.) from Yunnan.

Etymology. Latin, spiniphallata , referring to the phallus of new species with dense small membranous spiny processes on apical 1/2.