Kribiodosis cantonensis Tang, 2021

Han, Wu, Liu, Jie, Luo, Yifan & Tang, Hongqu, 2021, No longer endemic to Africa: Kribiodosis Kieffer, 1921 (Diptera, Chironomidae) new to Oriental China with a phylogeny and expanded adult generic diagnoses, Zootaxa 5072 (6), pp. 560-574 : 564-569

publication ID	https://doi.org/ 10.11646/zootaxa.5072.6.4
publication LSID	lsid:zoobank.org:pub:1CFF5E1E-7213-4B7B-A24F-953EA25B87D2
DOI	https://doi.org/10.5281/zenodo.5752844
persistent identifier	https://treatment.plazi.org/id/553A60FA-8F26-4810-8A0D-6D93B2623A5C
taxon LSID	lsid:zoobank.org:act:553A60FA-8F26-4810-8A0D-6D93B2623A5C
treatment provided by	Plazi
scientific name	Kribiodosis cantonensis Tang
status	sp. nov.

Treatment

Kribiodosis cantonensis Tang View in CoL sp. n.

http://zoobank.org/ urn:lsid:zoobank.org:act:553A60FA-8F26-4810-8A0D-6D93B2623A5C

Material examined. Holotype, male. CHINA: Guangdong Province, Guangzhou City, Conghua District, Lyutian Town , Dongkeng Reservoir , 23°53.287′N, 113°55.069′E, alt., 388 m, 23.iii.2015 (emerged 01.iv.2015), H.Q. Tang; GoogleMaps paratype, 2 males, 22.iv.2020; 1 female, 27.vi.2020, as previous, light trap, H.Q. Tang. GoogleMaps

Etymology. From the type locality, Canton, now Guangzhou.

Male (n = 2–3) ( Fig. 2–4 View FIGURE 2 View FIGURE 3 View FIGURE 4 )

Total length 3.14–3.63 mm. Wing length 1.55–1.63 mm.

Coloration ( Figs. 2–3 View FIGURE 2 View FIGURE 3 ). Thorax generally brown, with light brown humeral area, scutellum, pleurae and preepisternum. Scutal vittae dark brown. Leg generally brown except pale connection areas in femur-tibia knees and tibia-first tarsus joints in all legs ( Fig. 3A, C–D View FIGURE 3 ). Tarsomere 4 in fore legs with three dark pseudospurs ( Figs. 3B View FIGURE 3 , 4B View FIGURE 4 ). Abdomen tergite predominately yellow, with brown conjunctive from T I–VII. T VIII and T IX nearly completely brown. T III with a pair of brown spots subapically ( Fig. 2D View FIGURE 2 ). Gonocoxite and gonostylus yellow ( Figs. 2E–F View FIGURE 2 ).

Head. Antennal flagellomere 1–12, 555 μm; flagellomere 13, 600 μm, apex with two long setae ( Fig. 2A View FIGURE 2 ), AR 1.08. Palpomere lengths (in μm): 30–35; 35; 120–125; 105–120; 200. Temporals 8–12. Clypeus with 9–10 setae.

Thorax ( Figs. 2C View FIGURE 2 , 4C View FIGURE 4 ). Antepronotals and acrostichals absent, scutum with a prominent scutal tubercle, 15–20 μm high; dorsocentrals 3–4, usually 1 above the humeral area, 1 below the scutal tubercle, and 2 posterior, 2–3 tiny pale pits usually occurred in the middle section. Prealars and supraalars both absent, scutellum with 2 setae. Tiny trans-oval remnants of humeral pits are present.

Wing ( Fig. 2B View FIGURE 2 ). VR 1.29–1.31. Surface without macrochaetae. R without seta; R 1 with 4–5 setae. R 2+3 almost fused with R 1 in the end; R 4+5 with 2–3 setae distally. Squama bare.

Legs ( Fig. 3 View FIGURE 3 ). Total length of fore leg 5.10 mm, about 6.5 times as long as the thorax height. Fore tibia with a slender, offset spur, 15–20 μm long ( Fig. 4A View FIGURE 4 ). Mid and hind tibia with one fused comb, bearing a distal hooked spur, 70–80 μm long. LR 1 2.48; LR 2 0.91; LR 3 1.21. BV 1 2.15; BV 2 2.85; BV 3 2.48. SV 1 1.24; SV 2 2.59; SV 3 1.85. BR 1 3.0; BR 2 2.4; BR 3 2.8 (n = 1).

Hypopygium. ( Figs. 2E–F View FIGURE 2 ; 4D–E View FIGURE 4 ). Anal tergite bands well-developed, meeting in the middle, with 1–2 anal median setae. Distal margin with 6–8 setae at each side. Gonocoxite 90–105 μm long, with a longitudinal row of five long setae in the medio-ventral section. Gonostylus 88–98 μm long, inner margin with 6–8 evenly distributed long setae. Superior volsella ( Fig. 4F View FIGURE 4 ) base without microtrichia, bearing 2–3 inner setae from the tubercle base, distal digitus long and slender, distal gradually attenuated. Inferior volsella slightly bullous distally, with 12–14 setae. HR 1.03–1.07; HV 3.59–3.92.

Female (n = 1) ( Fig. 5 View FIGURE 5 )

Total length 2.33 mm. Wing length 1.85 mm.

Coloration ( Fig. 5A View FIGURE 5 ). Similar to male except the abdomen with brown patch, more extensive in anterior 1/5–1/3 of each segment. Tarsomere 4 of fore legs without dark brown pseudospurs.

Head. Eyes bare, with clear dorsal extension, separated by 1.3 times their terminal width. Antenna with five flagellomeres ( Fig. 5B View FIGURE 5 ), each length (in μm): 150, 105, 110, 65, 130; AR 0.31. Palpomere lengths (in μm): 40; 30; 120; 100; N/A (absent). Temporals 6. Clypeus with 16 setae.

Thorax. Antepronotals and acrostichals both absent, scutal tubercle present; dorsocentrals 4, usually 2 above the humeral area, 1 below the scutal tubercle, and 1 posterior, 2–3 tiny pale pits usually in the middle and posterior section. Prealars and supraalars both absent, scutellum 2. Larger trans-oval remnants of humeral pits present, 30 μm long and 15 μm wide.

Wing. VR 1.30. Surface without macrochaetae. R without seta, R 1 with 9 setae; R 2+3 indistinct, almost fused with R 1 all through the length; R 4+5 with 5–6 setae distally. Squama bare.

Legs. Total length of fore leg 6.03 mm, about 8.0 times as long as the thorax height. Fore tibia with a slender spur, 50 μm long. Mid and hind tibia with two fused combs, with a distal–hooked spur, 70–75 μm long. LR 1 3.08; LR 2 1.0; LR 3 no data. BV 1 2.05; BV 2 3.0; BV 3 no data. SV 1 1.03; SV 2 2.42; SV 3 no data. Bristles of legs unmeasurable.

Genitalia ( Fig. 5C View FIGURE 5 ). S VIII without distinct oval depression, with 16–18 setae. Coxosternapodeme V-shaped, fused in the middle. Notum 150 μm long, about three times as long as the rami. Lateral sternite IX with three setae. Dorsomesal lobe prominent, expanded post-medially; ventrolateral lobe reduced into a small strip, hidden below the well-developed dorsomesal lobe. Apodeme lobe without microtrichia. Two spermatheca oval, 70 μm in the long axis. Postgenital plate triangular shaped. Cercus ship-shaped, 80 μm long.

Pupa. Possibly under the description of Zavreliella shidai Cao & Tang, 2017 in error (see discussion).

Larva. Unknown.