Harnischia parallela Yan & Wang

Yan, Chun-Cai, Guo, Qin, Liu, Ting, Guo, Wei, Wang, Xin-Hua & Pan, Bao-Ping, 2016, Review of the genus Harnischia Kieffer from China (Diptera, Chironomidae), with description of one new species, ZooKeys 634, pp. 79-99 : 89-90

Taxon classification Animalia Diptera Chironomidae

Harnischia parallela Yan & Wang sp. n. Fig. 8

Diagnostic characters.

The new species is distinguished by the following combination of characters: R1 without microtrichia; front tibia with a subapical seta; tergite IX broadly triangular, with 26 setae (13 on each side); anal point parallel-sided, distinctly extended basally as a V-shaped form; without lateral and dorsal setae; phallapodeme wide and large; gonocoxite blunt and rounded apically, with 2 broad dorsal lobes; gonostylus with a small dorsal basal lobe bearing setae.

Type material.

Holotypes: ♂ (BDN No. 24949), China: Xinjiang burqin hotel (49.41°N, 86.59°E), 1.09.2002, Light trap, H. Tang; Paratype: 3 ♂♂ (BDN No. 24900, 24915, 24968), as holotypes.

Etymology.

The specific name, from Latin parallela , refers to anal point parallel-sided.

Description.

Male imago [n = 4, unless otherwise stated] Total length 3.55-3.68, 3.63 mm; wing length 1.83-1.98, 1.93 mm; total length / wing length 1.86-1.94, 1.88; wing length /length of profemur 2.38-2.54, 2.47.

Coloration. Thorax yellow brown, with dark brown spots. Femora of front legs yellow green, tibia dark brown, tarsus 1 dark brown except for yellow brown in basal 1/2 yellow brown, tarsi 2-4 dark brown; femora and tibiae of mid and hind legs yellow green, tarsi 1-4 yellow brown to dark brown, tarsi 5 black brown. Abdomen. Tergites I–IV yellow brown, each terminal with light brown, tergites V–VIII; hypopygium dark brown.

Head. AR: 2.06-2.24, 2.17. Ultimate flagellomere 660-740, 710 mm. Frontal tubercles absent. Temporal setae 12-16, 14, including 3-4, 3 inner verticals; 4-5, 5 outer verticals; and 5-7, 6 postorbitals. Clypeus with 13-16, 15 setae. Tentorium 100-130, 117 mm long, 28-33, 31 mm wide. Palpomere lengths (µm): 40-45, 43(3); 42-50, 47 (3); 122-150, 137(3); 163-170, 165(3); 235-245(2); palp segment 5th / 3rd: 1.57-1.69 (2).

Thorax. Antepronotum with 2-5, 4 setae, acrostichals 7-7, 7, dorsocentrals 9-11, 10, prealars 4-4, 4. Scutellum with 6-9, 7 setae.

Wing (Fig. 8A). VR: 1.11-1.13, 1.12. R with 8-11, 10 setae. R1 without setae. R4+5 with 1-2, 1 seta. Brachiolum with 2-2, 2 setae. Squama with 7-11, 9 fringed setae.

Legs. Front tibia with a subapical seta, 82-90, 87 mm. Mid legs with 2 spur, 15-20, 18 mm and 22-28, 26 mm, comb with 20-28, 25 teeth, 8-10, 9 mm long. Spurs of hind tibia 18-22, 20 mm and 25-32, 29 mm long, comb with 50-60, 54 teeth, 9-10, 10 mm long. Tarsus I of mid leg with 2-4, 3 sensilla chaetica. Lengths (in µm) and proportions of thoracic legs as in Table 1.

Hypopygium (Fig. 8 B–C). Tergite IX broadly triangular at base, bearing 26-32, 29 setae. Laterosternite IX with 4-6, 5 setae. Anal point 58-70, 65 mm long, parallel-sided, without dorsal and lateral setae. The basal ridge of anal point stretched towards the middle of tergite IX. Anal tergite bands transversally extended and concave medially. Phallapodeme 108-120, 116 mm long. Transverse sternapodeme 35-60, 47 mm long. Gonocoxite 130-147, 138 mm long, with two broad dorsal lobes, one basal and one distal, distal lobe with 8 strong setae; basal inner margin with 4 stout setae; gonostylus 117-120,119 mm long, blunt and rounded apically, with a distinct basal inner protrusion, rows of setae along inner margin absent. HR: 1.12-1.24, 1.18; HV: 3.03-3.12, 3.05.

Distribution.

China (Xinjiang).

Remarks.

Harnischia parallela Yan & Wang, sp. n. can be easily be separated from all other members of the Harnischia genus the morphological characters of: anal tergite band (transversally concave medially); anal point (parallel-sided); gonocoxite (bearing two broad dorsal lobes: 1 basal and 1 distal); gonostylus (with a small dorsal lobe at base).