Pseudosmittia cunealata, 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 : 241-243

Pseudosmittia cunealata sp. n.

( Fig. 90 C–H )

Type material: Holotype male, TANZANIA: Tanga, West Usambara Mountains, Mazumbai , 4–13.xii.1990, ZMBN's Tanzania Expedition ( ZMBN Type No. 439).

Diagnostic characters: The accessory lobe of the inferior volsella and the long but not U-formed virga separates the species from P. tokaraneoa .

Etymology: From Latin cuneus, wedge, ala, wing, and – atus, provided with, having, referring to the cuneiform wing.

Male imago (n = 1)

All measurements and ratios within the variation of P. guineensis with the following exceptions and additions: Total length 1.49 mm; wing length 1.04 mm; total length/wing length 1.42; coloration pale brown with darker vittae; AR 0.44; inner verticals 5, all rather long ( Fig. 90 D ); palpomere length (in µm): 18, 23, 32, 32, and lost; third palpomere as in Fig. 90 E ; wing cuneiform ( Fig. 90 F ), without anal lobe; costal extension 94 µm long; R 4+5 ending above or slightly distal to apex of M 3+4; all tarsi lost; hypopygium ( Fig. 90 G ) with 43 µm long anal point with setae and microtrichia to apex; tergite IX with 11 setae; laterosternite IX with 1 seta; phallapodeme 57 µm long; transverse sternapodeme with weak oral projections; virga ( Fig. 50 E ) 57 µm long, about as long as gonostylus; superior volsella not pronounced, reaching to 0.54 gonocoxite length; inferior volsella reaching to 0.71 gonocoxite length, with accessory lobe to 0.81 gonocoxite length; Gonostylus with rounded preapical crista dorsalis.

Female, pupa and larva

Unknown.

Distribution

The species is known only from the type locality, near a mountain stream in Tanzania .

Figures

FIGURE 50. Hydrosmittia aagaardi sp. n., male. A—wing; B—head; C—third palpomere; D—cibarial pump and stipes; E— virga; F—hypopygium, left dorsal aspect, right ventral aspect.

FIGURE 90. Pseudosmittia spp., male. A, B. P. tokaraneoa Sasa. A—wing; B—hypopygium, left dorsal aspect, right ventral aspect. C–H. P. cunealata sp. n., male. C—cibarial pump; D—head; E—third palpomere; F—wing; G—hypopygium, left dorsal aspect, right ventral aspect; H—virga; (A, B from Saether 2006.)