Pseudosmittia duplicata Caspers

Ferrington Jr, Leonard C. & Saether, Ole A., 2011, A revision of the genera Pseudosmittia Edwards, 1932, Allocladius Kieffer, 1913, and Hydrosmittia gen. n. (Diptera: Chironomidae, Orthocladiinae) 2849, Zootaxa 2849 (1), pp. 1-314 : 276

Pseudosmittia duplicata Caspers

( Fig. 106 A–F )

Pseudosmittia duplicata Caspers, 1990: 218 .

Material examined: CHINA: Jilin, Mt. Changbai , 1 male, 23.vi.1986, X. Wang .

Diagnostic characters: The male differs from all other members of the angusta group in having undivided, apically more or less rounded superior plus median volsella, a furcate inferior volsella, an additional lobe at apex of gonocoxite, no anal point, a spine-like virga and an AR of about 1.3.

Etymology: From the Latin furcatus, forked, referring to the shape of the inferior volsella.

Male imago (n = 1)

All measurements and ratios within the range of variation of P. forcipata described below, with the following exceptions and additions: Wing ( Fig. 106 A ) length/length of profemur 3.01; AR 1.26; costal extension 23 µm long, Cu 1 curved; dorsocentrals 7; BV 1 3.63; hypopygium ( Fig. 106 F ) without anal point, laterosternite with 7 setae; virga ( Fig. 106 E ) spine-like, 16 µm long; gonocoxite with superior and median volsella fused, 32 µm long, 21 µm wide at apex; inferior volsella 23 µm long, bifurcate, and with additional apical lobe (not accessory lobe); gonostylus on one side with 2 megasetae; HR 2.76; HV 3.74.

Female, pupa and larva

Unknown.

Distribution

The species is only known from the type locality, a mountain habitat in Jilin, China .

Figures

FIGURE 106. Pseudosmittia spp., male. A–F. P. duplicata Caspers, male. A—wing; B—head; C—third palpomere; D—cibarial pump and stipes; E—virga; F—hypopygium, left dorsal aspect, right ventral aspect. G—P. bifurcata (Tokunaga), male hypopygium, left dorsal aspect, right ventral aspect.