Pseudosmittia pedata, 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 : 290

Pseudosmittia pedata sp. n.

( Fig. 113 )

Type material: Holotype male, CANADA: New Brunswick, Kouchibougerae National Park , 9.vii.1977, I. M. Smith, (CH 4401–1, CNC) . – Paratype 1 female, same data as holotype except 6.vii.1978, D. R. Oliver & M. E. Roussel ( CNC) .

Diagnostic characters: The male imago can be separated from other members of the subgroup by the pediform inferior volsella and higher bristle ratios. The female differs from other members of the group by having no setae on R 1, only 2 on R 4+5, only 3 non-marginal setae on costa, and a strong apical seta on last flagellomere.

Etymology: From the Latin pedatus, having feet, referring to the pediform inferior volsella.

Male imago (n = 1)

All measurements and ratios within the range of variation of P. forcipata with the following exceptions: 5 inner vertical setae; Cu 1 ( Fig. 113 A ) barely sinuate; thorax with 3 antepronotal setae; SV 1 4.05, BR 2 6.7, BR 3 7.0; tergite IX with 17 setae; virga ( Fig. 113 E ) 33 µm long; inferior volsella ( Fig. 113 F ) 37 µm wide, pediform.

Female imago (n = 1)

All measurements and ratios within the range of variation of P. forcipata with the following exceptions: Terminal flagellomere with strong apical seta (broken); fourth palpomere 43 µm long; 7 dorsocentral setae; VR 1.24; R with 3, R 1 with 0, R 4+5 with 2 setae, costa with 3 non-marginal setae proximal to apex of R 4+5; tergite IX with 12 setae, sternite VIII with 13 setae; seminal capsule 73 µm long, apparently without microtrichia, gonocoxite without posterior projection ( Fig. 113 G–L ).

Pupa and larva

Unknown.

Remarks

The species is close to P. forcipata in the male imago. If the tentatively associated female is correctly assigned then it is very unlikely to turn out to be conspecific with P. forcipata .

Distribution

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

Figures

FIGURE 113. Pseudosmittia pedata sp. n. A–F. Male. A—wing; B—head; C—third palpomere; D—cibarial pump and stipes; E—virga; F—hypopygium, left dorsal aspect, right ventral aspect. G–L. Female. G—ventrolateral lobe; H—dorsomesal lobe; I—apodeme lobe; J—wing; K—genitalia, ventral view; L—genitalia, dorsal view.