Rhagovelia

Padilla-Gil, Dora N., 2012, Two new species of Rhagovelia from Colombia (Hemiptera: Heteroptera: Veliidae) with revised keys to the Colombian species in the torquata and robusta groups, Zootaxa 3251, pp. 57-63 : 62-63

Key to Rhagovelia species of the robusta group from Colombia

Modified after Padilla-Gil (2011).

1. Male length <3.5, maximum width <1.2. Posterior trochanter unarmed, lacking teeth or pegs; male paramere distinctive ( Fig. 15 )............................................................................ R. zeteki Drake & Capriles

- Male length ≥ 3.8, maximum width ≥ 1.3. Posterior trochanter bearing several small teeth; shape of male paramere variable according to species.................................................................................. 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........................................ 7

3. Hind femur with dorsal row bearing a large, forward-curving tooth followed by 5 teeth decreasing size distally ( Fig. 14 )............................................................................................. R. victoria sp. n.

- Hind femur with dorsal row bearing 2 or more larger teeth separated by others smaller............................... 4

4. Hind femur with dorsal spine row containing 2 teeth of much larger size than the others, separated by 1 or 3 smaller teeth... 5

- 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.................................................................................................... 6

5. 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. 16 ).................. R. rubra Polhemus

- 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. 17 )........... R. cachipai Padilla-Gil

6. 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. 18 ).......................... R. sinuata Gould

- 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. 19 )..................... R. venezuelana Polhemus

7. 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. Hind tibia with teeth of equal size, male paramere distinctive ( Fig. 20 ).................................................................................................. R. narinensis Padilla-Gil, 2011

- 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.......................................................................... 8

8. 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; male paramere distinctive ( Fig. 21 )..... R. nicolai Padilla-Gil

- 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; male paramere distinctive ( Fig. 22 )................................................................. R. imperatrix Padilla-Gil

Figures

FIGURES 15 − 22. Male parameres of species in the robusta group from Colombia. 15 R. zeteki, 16 R. rubra, 17 R. cachipai, 18 R. sinuata, 19 R. venezuelana, 20 R. narinensis, 21 R. nicolai, 22 R. imperatrix (Figs. 15, 16, 18, 19 not to scale, after Polhemus 1997; Figs. 17, 20, 21, 22, scale 0.05 mm, after Padilla-Gil 2011. All setae omitted).

FIGURES 12 − 14. Rhagovelia victoria sp. n., 12, hind leg. Scale 0.25 mm; 13, proctiger. Scale 0.05 mm; 14, paramere (setae omitted). Scale 0.025 mm.

FIGURES 1 − 4. Structural details of Rhagovelia divisoensis sp. n. 1 − 4 male. 1, antennal segment I, ventral view. Scale 0.1 mm; 2, hind leg, dorsal view. Scale 0.25 mm; 3, proctiger. Scale 0.05 mm; 4, paramere. Scale 0.025 mm.