Brunettia sinensis, Yang & Yin & Xi, 2025

Yang, Shuai-Lai, Yin, Xin-Ming & Xi, Yu-Qiang, 2025, Two new species of the genus Brunettia Annandale, 1910 (Diptera, Psychodidae, Psychodinae) from China, ZooKeys 1259, pp. 277-286 : 277-286

publication ID	https://doi.org/10.3897/zookeys.1259.153178
publication LSID	lsid:zoobank.org:pub:4AD85D23-C7FA-4E4A-90D8-B625DDA30269
persistent identifier	https://treatment.plazi.org/id/C4A5457C-ADE7-591F-AF11-F8343568F863
treatment provided by	ZooKeys by Pensoft
scientific name	Brunettia sinensis
status	sp. nov.

Treatment

Brunettia sinensis sp. nov.

Figs 1 A – F View Figure 1 , 2 A, B View Figure 2

Type material.

Holotype • 1 ♂, China, Jilin, Changchun, Jingyuetan , 143 ° 46 ' 53 " N, 125 ° 27 ' 48 " E, 246 m, 2022. VIII. 16, leg. Yuqiang Xi ; Paratypes: • 1 ♂, China, Fujian, Fuding, Taimu Mt. , Jinfeng Temple , 27 ° 06 ' 48 " N, 120 ° 10 ' 15 " E, 591 m, 2024. IV. 26 – 2024. V. 10, leg. Malaise Trap. GoogleMaps • 6 ♂♂, China, Fujian, Fuding, Huangren Village , Huangren Mt. , 27 ° 23 ' 49 " N, 120 ° 18 ' 58 " E, 260 m, 2024. IV. 26 – 2024. V. 10. leg. Malaise Trap GoogleMaps ; • 1 ♂, China, Fujian, Fuzhou, Fuzhou National Forest Park, 26 ° 09 ' 41 " N, 119 ° 17 ' 08 " E, 230 m, 2024. VI. 23, leg. Rong Huang GoogleMaps ; • 2 ♂♂, China, Fujian, Fuzhou, Fuzhou National Forest Park. 2024. VI. 30, 26 ° 09 ' 51 " N, 119 ° 17 ' 08 " E, 253 m, leg. Shuailai Yang GoogleMaps ; • 1 ♂, Shaanxi Province, Xianyang, Shimen Mt., National Forest Park, 2019. VII. 24, 35 ° 04 ' 27 " N, 108 ° 32 ' 55 " E, 1670 m, Qicheng Yang GoogleMaps .

Diagnosis.

Eye bridge of three facet rows, contiguous. Dorsal and ventral surfaces of the wings are densely covered with dark brown microtrichia, only at apex of the veins on the dorsal surface covered with white microtrichia; vein R 5 ending at wing apex. Ejaculatory apodeme 2.2 × length of aedeagus. Parameres long and slender, pointed at the distal, 1.57 × length of aedeagus. Gonostyle slender, with 2 setae distally. Surstylus with 27 tenacula distally, tenacula have three forms: short and straight, long and straight, long and curved.

Description.

( N = 1) Male. Body length 2.3 mm. Wing length 2.3 mm, width 1.2 mm. Head width 0.44 mm, length 0.4 mm; vertex 0.12 mm. Antennal 15 segments, scape length 0.12 mm, pedicel length 0.058 mm, width 0.066 mm; 1–13 flagellomeres: 0.12: 0.058: 0.095: 0.086: 0.086. 0.088: 0.88: 0.087: 0.87: 0.09: 0.09: 0.09: 0.08: 0.069: 0.057. Palpomeres 1: 0.032, 2: 0.18, 3: 0.2, 4: 0.22.

Head (Fig. 1 A View Figure 1 ) about the same length as width; vertex about 1 / 4 times length of head; with 4–6 ocular setae. Eye bridge of three facet rows, contiguous; interocular suture inverted Y-shaped; frontal scar patch concentrated at the middle half of the frontal and inner margin of the antennal socket, not extended to interocular suture. Antennae (Fig. 1 B View Figure 1 ) 15 segments, scape cylindrical, distally widened; pedicel rounded, distally rather pointed; flagellomeres fusiform, swollen at middle and narrowed distally; two transparent ascoids, long, slightly curved, same width in all the length. Clypeus margin slightly U-shaped, clypeus scar patch more than half of clypeus, labellum bulbous. Palpal proportions 1: 5.63: 6.25: 6.88

Thorax. Epimeron, anepisternum and katepisternum smooth, anepimeron half smooth and half setae. Wing (Fig. 1 C View Figure 1 ) densely clothed with fine black setae, microtrichia forming white spots at the apex of the veins in dorsal view (Fig. 2 A View Figure 2 ), but R 5 at apex with white spot rather indistinct; at the middle with white, sparse microtrichia forming indistinct pale spots. Wing wide, veins brownish, covered with dark brown scales; humeral region expanded and dark brown at the margin; vein R 1 rather wide, radial fork and medial forks complete, R 5 ending at wing apex.

Terminalia (Fig. 1 D – F View Figure 1 ). Ejaculatory apodeme length 0.16 mm, rod-shaped, long and thin, obvious broad at apex in lateral view; ejaculatory apodeme 2.2 × length of aedeagus. Aedeagus length 0.07 mm. Parameres long and slender, pointed distally, length 0.1 mm, about 1.57 × length of aedeagus; basal of parameres length 0.079 mm; hypandrium wide, and the middle extension length exceeds the aedeagus. Gonocoxite rather wide and round, about 1.2 × length of gonostyle; gonostyle slender, with 2 nearly transparent setae distally. Epandrium rectangular with two irregular pseudospiracular openings; hypoproct small, extended at the middle, tongue-shaped in dorsal view. Surstylus slightly broad, length 0.087 mm, width 0.059 mm in lateral view; surstylus with 27 tenacula distally, tenacula have three forms: 7 short and straight, 15 short and curved, 5 long and curved, contains 7 straight and 20 bend, tenacula length 0.04–0.098 mm, slightly oblate and darker distally.

Female. Unknown.

Distribution.

China ( Fujian, Jilin, Shaanxi).

Etymology.

The specific name refers to China, referring to the new species distributed in the south and north of China.

Biology.

Specimens of this new species were collected through sweep netting in densely vegetated broad-leaved forests with abundant leaf litter and humus on the ground (Fig. 3 A – C View Figure 3 ).

Remarks.

The new species resembles B. spinistoma Tokunaga & Komyo, 1955 in the habitus, parameres long and slender, ejaculatory apodeme developed and long; but it can be separated from the latter by the following: eye bridge contiguous; ejaculatory apodeme and aedeagus 2.5 × length of gonostyle; and the tenacula have three forms: short and straight, long and straight, long and curved. In B. spinistoma Tokunaga & Komyo , the eye bridge is minute; ejaculatory apodeme and aedeagus 2.0 × length of gonostyle; and the tenacula have two forms, short and straight, long and curved ( Tokunaga and Komyo 1955).