Rhagovelia

Padilla-Gil, Dora N., 2011, Four new species of Rhagovelia in the robusta group from Colombia (Hemiptera: Heteroptera: Veliidae), Zootaxa 2975, pp. 35-46 : 44-46

Key to Rhagovelia species of the robusta group from Colombia

Information for species previously described follows Polhemus (1997).

1. Male length <3.5, maximum width <1.2. Posterior trochanter unarmed, lacking teeth or pegs; (male paramere distinctive ( Fig. 23 )).......................................................................................... R. zeteki

- Male length ≥ 3.8, maximum width ≥ 1.3. Posterior trochanter bearing several small teeth............................2

2. Posterior femur with 2 regular and parallel rows of teeth on distal half of posterior margin, the dorsal row with varied disposition of these teeth..................................................................................... 3

- Posterior femur with a dorsal spine row only, ventral surface of femur below this row bearing either~4 irregular longitudinal spine rows or several small black asperities or pegs of irregular disposition........................................ 6

3. Hind femur with dorsal spine row containing 2 teeth of much larger size than the others, separated by 1 or 3 smaller teeth…..4

- Hind femur with dorsal spine row containing 2 or 3 teeth of much larger size than the others, separated by 4 or 5 smaller teeth.................................................................................................... 5

4. Smaller species, male length 3.85, maximum width 1.3. Hind femur with dorsal spine row containing 2 teeth of much larger size than the others, separated by 2 smaller teeth; male paramere distinctive ( Fig. 7 )........................... R. rubra

- Larger species, male length 5.8, maximum width 1.8. Hind femur with dorsal spine row containing 2 teeth of much larger size than the others, separated by 3 smaller teeth ( Fig. 2 ); male paramere distinctive ( Fig. 3 )................. R. cachipai sp. n.

5. Male length 4.35, maximum width 1.4. Hind femur with dorsal spine row containing 2 teeth of much larger size than the others, separated by 4 or 5 smaller teeth; male paramere distinctive ( Fig. 24 ).................................. R. sinuata

- Male length 4.59, maximum width 1.62. Hind femur with dorsal spine row containing 12 teeth, with 3 teeth of much larger size than the others, the first large tooth followed by 5 teeth of progressively decreasing size distally, then 2 more large teeth followed by 4 more decreasing teeth; male paramere distinctive ( Fig. 25 )................................ R. venezuelana

6. Larger species, male length 5.93, maximum width 2.13. Hind femur with a dorsal row and ventral surface bearing with ~4 irregular longitudinal rows ( Fig. 14 ). Hind tibia with teeth of equal size, male paramere distinctive ( Fig. 15 )................................................................................................... R. nariñensis sp. n.

- Smaller species, male length ≤ 5.8, maximum width ≤ 2.0. Hind femur with a dorsal spine row and ventral surface bearing several small black asperities or pegs of irregular disposition. Hind tibia with distal 2/3 with black largest tooth; male paramere

distinctive according to species........................................................................... 7 7. Male length 5.6, maximum width 2.0. Hind femur with a dorsal longitudinal row of 9 black teeth, consisting of 3 small teeth followed by a gap, then 5 teeth on distal 2/3 with 1 very large spine-like tooth, followed by 4 subequal peg-like teeth and 1 moderately large spine-like tooth near center of apex of femur ( Figs. 8 , 9 ); male paramere, male proctiger distinctive ( Figs. 10, 11 )..................................................................................... R. nicolai sp. n.

- Male length 5.86, maximum width 1.72. Hind femur with a dorsal longitudinal row of 6 black teeth, consisting of 1 small tooth on basal third, followed by a gap, then 5 teeth on distal half, with a large, forward-curving tooth followed by 3 teeth of progressively decreasing size distally, then another triangular black tooth near center of femoral apex ( Fig. 18 ); male paramere and proctiger distinctive ( Figs. 19, 20 )......................................................... R. imperatrix sp. n.

Figures

FIGURE 8. Rhagovelia nicolai sp. n., apterous male, dorsal habitus. Scale 1 mm.

FIGURES 18 − 25. 18 − 22, Structural details of Rhagovelia imperatrix sp. n. 18 − 20 male. 18, hind femur, ventral view. Scale 0.25 mm; 19, paramere (setae omitted). Scale 0.05 mm; 20, proctiger. Scale 0.05 mm; 21 − 22. Female, 21 abdomen, lateral view. Scale 0.1 mm; 22, hind femur. Scale 0.25 mm. 23 − 25, Male parameres of species in the robusta group from Colombia (after Polhemus 1997, setae omitted). 23 R. zeteki, 24 R. sinuata, 25 R. venezuelana. Figures not to scale.

FIGURES 2 − 7. 2 − 6, Structural details of Rhagovelia cachipai sp. n., 2 − 4 male. 2, hind femur, dorsal view. Scale 0.25 mm; 3, paramere (setae omitted). Scale 0.05 mm; 4, proctiger. Scale 0.05 mm; 5, female abdomen, lateral view. Scale 0.1 mm; 6, pronotum, winged male, dorsal view. Scale 0.5 mm; 7, male paramere of R. rubra, not to scale (after Polhemus 1997).

FIGURES 14 − 17. Structural details of Rhagovelia nariñensis sp. n. 14 − 15 male. 14, hind femur, dorsal view. Scale 1 mm; 15, paramere (setae omitted). Scale 0.05 mm; 16 proctiger. Scale 0.05 mm; 17, female abdomen, lateral view. Scale 0.1 mm.

FIGURES 9 − 13. Structural details of Rhagovelia nicolai sp. n., 9 − 11 male. 9, hind leg. Scale 0.25 mm; 10, paramere (setae omitted). Scale 0.05 mm; 11, proctiger. Scale 0.05 mm; 12, female abdomen, lateral view. Scale 1 mm; 13, female hind femur, dorsal view. Scale 0.25 mm.