Pseudosmittia aculeathrix, Ferrington Jr & Saether, 2011

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 : 259

Pseudosmittia aculeathrix sp. n.

( Fig. 97 )

Type material: Holotype male, USA: New York, South Dayton , 25.vii.1946, R. Beamer ( USNM) . – Paratypes, 4 males, same data as holotype ( ZMBN, UMSP) .

Diagnostic characters: The long, sharply pointed median volsella, the reduced, pointed inferior volsella, and the weak, pointed anal point separate the species from other Pseudosmittia .

Etymology: From the Latin aculeus, sting, and trix, suffix meaning doer (feminine), referring to the sharply pointed median volsella.

Male imago

All measurements and ratios within the range of variation of P. forcipata with the following exceptions and additions: Total length/wing length 1.41–1.48, 1.44 (4); wing length/length of profemur 3.00–3.14, 3.05 (4); AR 0.78 (1), apparently no strong apical seta; dorsocentrals 5–8, 7 (5); scutellum with 3–4, 4 (5) setae; LR 1 0.40 (1), LR 2 0.45–0.46 (3), LR 3 0.53–0.55 (2); BV 2 4.53–4.68 (2); SV 1 4.53 (1); BR 1 2.8 (1); hypopygium ( Fig. 97 F ) with weak 23–27, 25 µm (4) anal point with relatively long, but weak microtrichia to apex; gonostylus 41–46, 43 µm (5) long, with sharply triangular preapical crista dorsalis; superior volsella 30–39, 34 µm (4) long; 23–32, 28 µm (4) wide; median volsella 57–69, 62 µm (5) long, sharply pointed with bare apex; inferior volsella low with accessory lobe separated and far posterior; HR 3.45–4.16, 3.86 (5); HV 3.30–3.58, 3.50 (5).

Female, pupa and larva

Unknown.

Distribution

The species is only known from the type locality in New York .

Figures

FIGURE 97. Pseudosmittia aculeathrix sp. n., male. A—wing; B—head; C—cibarial pump and stipes; D—third palpomere; E—virga; F—hypopygium, left dorsal aspect, right ventral aspect.