Noeetomima tengchongica, Shi, Li, Gaimari, Stephen & Yang, Ding, 2013

Shi, Li, Gaimari, Stephen & Yang, Ding, 2013, Four new species of Noeetomima Enderlein (Diptera: Lauxaniidae), with a key to world species, Zootaxa 3746 (2), pp. 338-356 : 348-351

Noeetomima tengchongica sp. nov.

( Figs. 3 , 21–28 )

Diagnosis. Arista black, pubescent. Palpus brownish yellow, except black apical outer margin. Mesoscutum with presutural dorsocentral seta before horizontal level of presutural acrostichal seta. Scutellum with a small greyish white tapering median spot, a pair of black lateral spots on basal 1/3 and a pair of greyish white round spots on base of basal scutellar seta. Fore femur with 5 strong posteroventral setae and hind femur with a row of 4–5 anteroventral setae (only 1 strongest on apical 1/3). Wing with 5 white radiating stripes in cell r1 and 4 white radiating stripes between R2+3 and M1; 2 white radiating stripes in cell cua1; a white stripe-like spot beyond vertical level of dm-cu, and a white quadrate spot present before vertical level of r-m in cell r2+3; posterior margin undulating. Male genitalia: surstylus consisting of a long greyish black anterior ventral process with setulae and a short yellow rectangular process with a small brown horn-like process on anterior corner in lateral view.

Description. MALE. Body length 2.5 mm, wing length 4.0 mm. FEMALE. Body length 2.9 mm, wing length 4.4 mm.

Head ( Figs. 22, 23 ) yellow. Face pale greyish pruinose, with brown V-shaped subbasal spot and brown groove along ventral margin extending to gena; parafacial pale yellow with brown median spot, brown ventroapical spot and inner margin blackish brown. Frons with pair of narrow brownish median stripes, extending to ocellar triangle; 2 blackish brown lateral stripes along fronto-orbital rows, terminated before inner vertical seta. Gena about 1/5 height of eye. Occiput with greyish pruinosity, 2 small brown lateral spots and wide black median spot confluent with ocellar triangle. Antenna with scape and pedicel yellowish brown, flagellomere 1 pale yellow except blackish brown on dorsal and ventral margins, about 1.3 times longer than high; arista black, pubescent. Brown rectangular spot present between eye and antenna. Eye with 2 brown round spots on upper margin but no concavity on posterior ventral margin and. Proboscis yellow, with yellowish and blackish setulae; palpus brownish yellow except black on apical outer margin, with blackish setulae.

Thorax ( Figs. 21, 22 ) brown, with dark yellowish grey pruinosity. Mesoscutum with pair of narrow brown median stripes extending from anterior margin to presutural acrostichal seta; posterior margin of postpronotum surrounded by wide brown stripe and brown round spot behind postpronotum; brown Y-shaped lateral spot present on transverse suture, and pair of dark brown transverse clouds between middle pair of postsutural dorsocentral setae, pair of small black triangular spots on posterior margin extending to scutellum; presutural dorsocentral seta before horizontal level of presutural acrostichal seta, anteriormost postsutural dorsocentral seta near transverse scutal suture and anteriormost postsutural acrostichal seta on transverse scutal suture; prescutellar acrostichal seta shorter than anteriormost postsutural dorsocentral seta. Anepisternum and katepisternum brown with greyish pruinosity; anepisternum with 2 brown spots present on upper margin and brown spot present on lower margin, 1 strong anepisternal seta and 2 short setulae; 2 katepisternal setae; katepisternum with brown spot on anterior corner confluent with brown spot on lower margin of anepisternum, and brown spot on base of anterior katepisternal seta. Scutellum black, with greyish yellow pruinosity on basal 2/3, dense yellow microtrichia on apical 1/3–1/2; small greyish white tapering median spot and pair of black lateral spots on basal 1/3, and pair of greyish white round spots on base of basal scutellar seta. Legs yellow except apical tarsomeres pale brown, fore femur brown, mid and hind femora brownish black on basal 3/4, hind tibia with brown subbasal ring. Fore femur with 5 strong posteroventral setae and 6 posterodorsal setae; fore tibia with 1 long preapical anterodorsal seta and 1 short apicoventral seta. Mid femur with 4 anterior and 1 apicoposterior setae; mid tibia with 1 strong preapical anterodorsal seta and 1 strong apicoventral seta. Hind femur with row of 4–5 anteroventral setae (only 1 strongest on apical 1/3) and 1 preapical anterodorsal seta; hind tibia with 1 preapical anterodorsal seta and 1 short apicoventral seta. Wing ( Fig. 3 ) with 5 white radiating stripes in cell r1 and 4 white radiating stripes between R2+3 and M1; 2 white radiating stripes in cell cua1; white linear spot, narrow apically, beyond vertical level of dm-cu, and white quadrate spot present before vertical level of r-m in cell r2+3; 2 white round spots beyond r-m in cell r4+5, white stripe over dm-cu; posterior margin slightly undulating; 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 3.4: 1.6: 1; r-m beyond middle of discal cell; ultimate and penultimate sections of M 1 in proportion of 1.1: 1; ultimate section of CuA1 about 1/5 of penultimate. Halter yellow, except knob blackish brown.

Abdomen: female tergites 2–6 each with 4 pairs of greyish white spots and 5–6 pairs of dorsal setae on posterior margin; tergites 7–9 yellow. Male tergites 4–6 each with greyish white median spot on anterior margin; tergite 2 with 6 pairs of greyish white lateral spots, tergites 3–4 with 3 pairs of greyish white lateral spots, and tergites 5–6 with 4 pairs of greyish white lateral spots; female and male tergites 2–6 with 6 pairs of setae on posterior margin. Male genitalia ( Figs. 24–28 ): syntergosternite 7+8 and epandrium yellow; syntergosternite 7+8 slender, circular with pair of ventral processes; epandrium with greyish black dorsal spot, 2 blackish brown lateral spots and several short strong dorsal setae; surstylus consisting of long greyish black anterior ventral process with setulae and short yellow rectangular process with small brown horn-like process on anterior corner in lateral view; hypandrium long and broad, lateral arms broad with anteriorly and posteriorly projecting processes laterally, medial arm slightly broadened anteriorly; postgonite curved on apical 1/3–1/2, narrow basally and wide kidneyshaped apically with 5 long dorsal setae in ventral view; phallus consisting of 2–3 pairs of lateral teeth on membranous area in lateral view and broad dorsal sclerite with pair of rectangular basal processes, deep basal concavity and compressed triangular apical process, truncate apically in ventral view. Phallapodeme long, projecting anteriorly, and nearly equal to length of hypandrium in lateral view. Cerci diminutive.

Type material. Holotype ♂ ( Figs. 21–23 ) (CAUC), CHINA, Yunnan Province: Tengchong, Tengchong Village (2000 m), 25°01′N 98°30′E, 31. V. 2007, Xingyue Liu. Paratypes: CHINA, Yunnan Province: 1 ♀ (CAUC), Yunnan: Tengchong, tengchong village (2200 m), 25°01′N 98°30′E, 31. V. 2007, Yanlei Li.

Distribution. China (Yunnan Province).

Remarks. See Noeetomima jinpingensis sp. nov.

Etymology. The specific epithet is named for the collecting locality Tengchong.

Figures

FIGURES 1 – 4. Wings. 1. Noeetomima chinensis sp. nov.; 2. N. jinpingensis sp. nov.; 3. N. tengchongica sp. nov.; 4. N. yunnanica sp. nov.

FIGURES 21 – 23. Noeetomima tengchongica sp. nov. Holotype male. 21. habitus, lateral view; 22. thorax and head, dorsal view; 23. head, anterior oblique view.

FIGURES 24 – 28. Noeetomima tengchongica sp. nov. Male. 24. syntergosternite 7 + 8 and epandrium, lateral view; 25. syntergosternite 7 + 8, anterior view; 26. epandrial complex, posterior view; 27. phallus complex, ventral view; 28. phallus complex, lateral view. Scale bar = 0.1 mm.