Chrysopidae, Schneider, 1851

Serediuk, H. V., 2018, Morphometry Of Fore Wing Venation For Identification Of Net-Winged Insects Of The Ukrainian Carpathians, With A Focus On Chrysopa (Neuroptera, Chrysopidae), Vestnik Zoologii 52 (2), pp. 101-114 : 109

Key to Ukrainian genera of Chrysopidae

1. Intramedian cell (im) of fore wing is nearly trapeziform ( FIg. 5a ). ............................................. Italochrysa

— Intramedian cell (im) of fore wing is nearly oval-triangular ( FIg. 5a–6c )......................................................2

2. Fore wing longer than 16 mm and more...........................................................................................................3

— Fore wing shorter than 15 mm ...........................................................................................................................5

3. Setae in costal sector short and arranged at an acute angle (30–45°) to the costal vein (C). .......... Ninetа

— Setae in costal sector are long and arranged at an angle from 60° to almost 90° to the costal vein (C). ..... 4

4. Long setae along the costal vein (C) of fore wing arranged almost at right angle. ................ Chrysotropia

— Setae along the costal vein (C) of fore wing at an angle of not more than 60° ( FIg. 7 ). .............................. 9

5. Index of length to width ratio in the second cell of radial sector (r 2) is 1.6 or less. ................................... 6

— Index of length to width ratio in the second cell of radial sector (r 2) exceeds 1.8. .................................... 7

6. The cell m 2 nearly pentagonal, less than 2.5 (usually 2 times) as long as wide; cell m 3 nearly triangular in shape, almost as long as wide ( FIg. 5c ). Head and sometimes body with dark spots. .................. Chrysopa

— The cell m 2 nearly quadrangular, more than 2.5 (usually 3 times) as long as wide; cell m 3 twice as long as wide ( FIg. 6c ). Head and body are without dark spots. ............................................................. Cunctochrysa

7. First cross vein between R s and М (r-m) meets vein M at some distance from the apex of intramedian cell (im) ( FIg. 6a ). Cross veins of the costal sector dark colored at their ends. Thorax and abdomen without longitudinal dorsal pale band. .................................................................................................. Pseudomallada

— First cross vein between R s and М (r-m) meets vein M slightly beyond the limits of the intramedian cell (im) ( FIg. 6b ). Cross veins of the costal sector uniformly greenish. Thorax and abdomen with longitudinal dorsal pale band. .............................................................................................................................. Chrysoperla

Figures

Figs 4–7. Fore wing venation of Chrysopidae: 4 — Chrysotropia Navás, 1911; 5 — base of fore wing: 5a — Italochrysa Principi. 1946, 5b — Nineta Navas, 1912, 5c — Chrysopa Leach in Brewster, 1815, 5d — Peyerimhoffina Lacroix, 1920; 6 — base of fore wing: 6a —Pseudomallada Tsukaguchi, 1995, 6b— Chrysoperla Steinmann, 1964, 6c — Cunctochrysa Hölzel, 1970; 7 — fragment of fore wing of Chrysopa Leach, 1815 with setae fringe; M — median vein, im — intramedian cell, m2 — 2nd median cell, m3 — 3rd median cell, r1 — 1st radial cell, r2 — 2nd radial cell, r-m — radial-median vein, Rs — radial sector.