Trypetisoma (Trypaneoides) triprocessa Li & Qi & Yang 2019, sp. nov.
Creators: name: Li, Wenliang
name: Qi, Ling
name: Yang, Ding
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Lauxaniidae
Trypetisoma
Trypetisoma triprocessa

description: Trypetisoma (Trypaneoides) triprocessa sp. nov.
(Figs. 61–70)
Diagnosis. Face with 1 brown concave near ventral margin. Leg yellow, tibiae with 1 brown circle near base (fore tibia with 1 semicircular, sometimes indistinctly), tarsi pale brown at apex. Male genitalia (Figs. 66–70): syntergosternite with a pair of long ventral process at ventral apex, with 1 broad sclerite opposite ventral process, 7 st spiracle outward distinctly.
Description. MALE. Body length 2.2 mm, wing length 2.8 mm. FEMALE. Body length 2.5 mm, wing length 3.1 mm.
Head (Fig. 61) pale yellow. Face yellow except brown on lateral and ventral margin, with 1 brown concave near ventral margin; parafacial with 1 circular brown spot on apical inner margin. Frons yellow with grayish white pruinescence, wider than long, trapeziform, anterior margin narrower than the posterior, with a pair of narrow brown median bands extending to ocellar triangle; ocellar triangle blackish gray, oc and or absent; oc each with 1 blackish brown basal spot. Gena about 1/5 eye height. Occiput with gray pruinescence. Antenna brownish yellow; 1 st flagellomere pale yellow basally, nearly 1.2 times longer than high; arista brown except yellow basally, pubescent. 1 brown triangular spot present between antenna and eye. Proboscis pale yellow, with yellow and black hairs; palpus brown with black hairs.
Thorax (Fig. 64) brown, with grayish yellow pruinescence. Mesonotum with 1 narrow brown median band extending from anterior margin to anterior of 3st post-sutural dc, postpronotum with posterior margin surrounded by 1 thin brown band; 1+3 dc, 1st post-sutural dc near transverse scutal suture, presutural dc closer to anterior margin than presutural acr; 1+3 acr, in 2 rows; prescutellar acr absent; dc seta and acr each with 1 brown basal spot. Anepisternum and katepisternum with gray pruinescence, anepisternum with 2 brown spots near dorsal margin, 1 brown spot near ventral margin, 2 anpest (the strongest one near posterior margin) and 3–4 short hairs; 2 kepst. Leg yellow, femora pale brown except pale yellow at apex, tibiae with 1 brown circle near base (fore tibia with 1 semicircular, sometimes indistinctly), tarsi pale brown at apex. Fore femur with 5 pd, 4 pv; fore tibia with 1 long dp, 2 short apv. Mid femur with 5 a, 1 app; mid tibia with 1 strong dp, 1 strong apv. Hind femur with 3 apv on apical half, 1 preapical ad; hind tibia with 1 dp, 1 short apv. Wing (Fig. 62) with anterior margin brown, along posterior margin grayish white gradually, with circular or irregular hyaline spots, hyaline spots forming 2 hyaline bands along r-m and R 2+3 extending to posterior margin, 1 brown band along dm-cu extending from anterior margin to posterior margin between the two hyaline bands, the brown band with 2 hyaline spots on r 1 cell and with 2 thin hyaline spots on both sides of dm-cu, hyaline apical spots present between R 4+5 and M 1+2; subcostal cell brown; costa with 2nd, 3rd and 4th sections in proportion of 7.4: 2.4: 1.5; r-m beind middle of discal cell; ultimate and penultimate sections of M 1 in proportion of 5.7: 2.6; ultimate section of CuA 1 about 1/5 of penultimate section. Halter pale yellow except knob black brown.
Abdomen (Fig. 65) blackish brown, with grayish white pruinescence; tergites 2–6 each with 6 pairs of posterior margin seta on pale yellow basal spots, with 1 row blackish brown spots on middle irregularly. Male genitalia (Figs. 66–70): syntergosternite with a pair of long ventral process at ventral apex, with 1 broad sclerite opposite ventral process, 7 st spiracle outward distinctly. Epandrium broad, ventral apical angle with setae. Surstylus unobvious. Hypandrium H-shaped with a pair of inner process. Gonopod tubiform, strong apically, with 4 long hairs. Aedeagus slender, consist of 1 thin V-shaped ventral sclerite and a pair of slender ventral sclerites. Aedeagus without distinct apical concave. Aedeagal apodeme tubiform, as long as 1/2 length of aedeagus.
Type material. Holotype (HAUST): 1 ♂, CHINA, Yunnan: Yingjiang, Xima, 2012. V. 4, Wenliang Li. Paratype (HAUST): 1 ♀, CHINA, Yunnan: data same as holotype.
Distribution. China (Yunnan).
Remarks. The new species is very similar to Trypetisoma (Trypaneoides) japonicus (Shatalkin, 1998) from the Palaearctic region, but the latter abdomen whole black; the new species tergites 2–6 with blackish brown posterior margin spots, and 1 row blackish brown thin spots on middle irregularly.
Etymology. Latin, triprocessa, meaning three process, referring to the new species syntergosternite ventral bridge with a pair of ventral process and 1 broad dorsal process.
description: Published as part of Li, Wenliang, Qi, Ling & Yang, Ding, 2019, First record of the genus Trypetisoma Malloch, 1924 (Diptera, Lauxaniidae) for China with nine species, pp. 35-64 in Zootaxa 4608 (1) on pages 54-55, DOI: 10.11646/zootaxa.4608.1.2, http://zenodo.org/record/2944225