Parapsectra Reiss, 1969

Giłka, Wojciech & Jażdżewska, Natalia, 2010, A systematic review of the genus Parapsectra Reiss (Diptera: Chironomidae: Tanytarsini) with description of a new species from Poland, Zootaxa 2350, pp. 1-21 : 2

Parapsectra Reiss, 1969

Reiss 1969b: 192. Type species: Chironomus nanus Meigen, 1818 .

Diagnostic description. Wing length 1.25–2.05 mm (arculus–tip) to 2.40 mm (base–tip), exceptionally 0.55– 0.82 mm ( P. uliginosa , brachyptery). Eyes bare, reniform. Antenna with 13 flagellomeres, exceptionally with only 6 or 7 flagellomeres ( P. uliginosa , Fig. 25 ); AR = 0.29–0.90; frontal tubercles minute or absent. Wing covered with macrotrichia on almost entire area (excl. P. wagneri ), number of macrotrichia below An, length of RM, distance between RM and FCu and shape of anal lobe species-specific ( Figs 1–7 ). Tibial combs of mid and hind leg fused or slightly separated, if widely separated - number of teeth reduced; each comb often bears single, slightly longer, spur-like tooth. Anal tergite bands of V-type, lateral teeth usually absent (excl. P. mendli and P. s t y r i a c a), 2–7 median setae present. Anal point with rounded, transversally cut or slightly concave apex, exceptionally apex acute (P. m e n d l i); crests slender or slightly widened in posterior section ( P. wagneri ). Superior volsella triangular with anteromedian margin straight or convex, or with slender apical prolongation and anteromedian margin concave (P. m e n d l i), and/or sinuous ( P. styriaca ); tubercle at base of superior volsella bearing Micropsectra -seta sensu Säwedal (1982) usually tall and cylindrical, exceptionally short and conical ( P. mendli ). Digitus never extending beyond superior volsella or absent ( P. styriaca ). Inferior volsella species-specific ( Figs 32–41 ). Median volsella usually with spoon-shaped or with falciform lamellae (P. u l i g i n o s a, P. wagneri ). See also taxonomic remarks.

Figures

FIGURES 25 – 28. Parapsectra uliginosa, male. 25: antenna (variation), 26: hypopygium, 27: superior volsella and digitus (variation), 28: median volsella (magnified x 3 in comparison with hypopygium).

FIGURES 1 – 4. Wing of male. 1: Parapsectra bumasta sp. n., 2: P. chionophila, 3: P. m e n d l i, 4: P. nana.

FIGURES 5 – 7. Wing of male. 5: Parapsectra styriaca, 6: P. u l i g i n o s a (paratypes, variation), 7: P. wagneri (holotype).

FIGURES 32 – 41. Hypopygial inferior volsella and inner margin of coxite. 32, 33: Parapsectra bumasta sp. n.; 34, 35: P. chionophila; 36, 37: P. m e n d l i; 38: P. nana; 39: P. styriaca; 40: P. uliginosa; 41: P. wagneri.