Trypetisoma ( Trypaneoides ) menglunensis, Li & Qi & Yang, 2019

Trypetisoma ( Trypaneoides) menglunensis sp. nov.

( Figs. 31–40 View FIGURES 31–35 View FIGURES 36–40 )

Diagnosis. Face yellow, with nose-like process on middle of basal half. Scutellum with a pair of brown spots converge with mesonotum posterior margin spot and basal spot of 3st post-sutural acr. Male genitalia ( Figs. 36–40 View FIGURES 36–40 ): surstylus consist of 1 anterior process and 1 posterior process; anterior process with setae, digitiform; posterior apical process along ventral apex extending out in lateral view.

Description. MALE. Body length 2.2–2.3 mm, wing length 2.5–2.6 mm. FEMALE. Unknown.

Head ( Fig. 31 View FIGURES 31–35 ) pale yellow. Face yellow, with nose-like process on middle of basal half and with 2 brown transverse bands on middle and ventral margin; parafacial with 1 short brown band on middle of inner margin and with 1 elliptic brown spot on inner margin apically. Frons brownish yellow except anterior margin 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, disappear at anterior of occiput; ocellar triangle blackish brown, oc developed, longer than anterior or; anterior or longer than half length of posterior or; oc each with 1 blackish brown basal spot. Gena about 1/5 eye height. Occiput with gray pruinescence. Antenna yellow, 1 st flagellomere brown except yellow basally, nearly 1.4 times longer than high; arista blackish brown except yellow basally, pubescent. 1 brown triangular spot present between antenna and eye. Proboscis yellow to brownish yellow, with yellow and black hairs; palpus yellow except pale brown at apex, with black hairs.

Thorax ( Fig. 34 View FIGURES 31–35 ) brown, with grayish yellow pruinescence. Mesonotum with 1 narrow brown median band indistinctly, extending from anterior margin to anterior of scutellum, posterior margin with a pair of triangular brown spots, postpronotum with posterior margin surrounded by 1 thin brown band, 3–4 brown spots present between dc and supra-alar seta; posterior margin with a pair of spots; 1+3 dc, 1st post-sutural dc near transverse scutal suture, presutural dc closer to anterior margin than presutural acr; 1+3 acr (exclude prescutellar acr), in 2 rows; prescutellar acr absent; dc, acr and prescutellar 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 anepst (the strongest one near posterior margin) and 3–4 short hairs; 2 kepst. Scutellum with grayish yellow pruinescence, a pair of brown spots converge with mesonotum posterior margin spot and basal spot of 3st post-sutural acr, 1 brown spot present in apical scutellar seta. Leg yellow, femora brown except pale yellow at apex, tibiae with 1 brown circle near base. 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 apv. Hind femur with 2 apv on apical half, 1 preapical ad; hind tibia with 1 dp, 1 short apv. Wing ( Fig. 32 View FIGURES 31–35 ) anterior margin brown, with circular or irregular brown spots; 1 wide brown band along dm-cu extending from anterior margin to the posterior and with hyaline spots irregularly; subcostal cell brown; costa with 2nd, 3rd and 4th sections in proportion of 9.9: 3.3: 2.2; r-m beind middle of discal cell; ultimate and penultimate sections of M 1 in proportion of 6.7: 3.4; ultimate section of CuA 1 about 1/7 of penultimate section. Halter pale yellow except knob brown.

Abdomen ( Fig. 35 View FIGURES 31–35 ) blackish brown, with grayish white pruinescence, syntergosternite and epandrium yellow; tergites 2–6 each with 5 pairs of posterior margin setae, 4 pairs of grayish white spots, anterior margin with gayish white median spots, forming 1 discrete grayish white median longitudinal band. Male genitalia ( Figs. 36–40 View FIGURES 36–40 ): syntergosternite semicircular and narrow in anterior view. Epandrium narrow apically and broad basally, trapeziform. Surstylus consist of 1 anterior process and 1 posterior process; anterior process broad with setae, digitiform; posterior apical process narrow, along ventral apex extending out in lateral view, incurved in posterior view. Hypandrium Y-shaped, with long inner process. Gonopod tubiform, longer than aedeagus, with 1 long hair basally, short hairs on apical half. Aedeagus with a pair of ventral sclerites, ventral sclerites connected by dorsal sclerites, with 1 median spine in interior in ventral view, 1 long ventral process basally in lateral view. Aedeagus deep concave apically. Aedeagus inner process tubiform, broad in ventral view but narrow in lateral view, shorter than aedeagus.

Type material. Holotype ( HAUST): 1 ♂, CHINA, Yunnan: Xishuangbanna, Menglun No. 55 area ( 920 m), 2007. IV. 24, Wenliang Li . Paratypes ( HAUST): 1 ♂, CHINA, Yunnan: Xishuangbanna, Menglun No. 55 area ( 920 m), 2007. IV. 24, Hui Dong .

Distribution. China ( Yunnan).

Remarks. The new species is very similar to Trypetisoma ( Trypaneoides) morio (de Meijere, 1910) from Indonesia, but the latter wing with at least 20 dark spots and blotches in cell cua 1.

Etymology. Latin, menglunensis , referring to the type locality Yunnan, Menglun.