Oiovelia
Creators: name: Floriano, Carla Fernanda Burguez
name: Rodrigues, Higor D. D.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Veliidae
Oiovelia

description: Key to the species of Oiovelia
Modified from Rodrigues et al. (2014)
Note: Species of this genus commonly have variations in some diagnostic morphological characters (Rodrigues et al. 2014). In some cases, females have to be identified by association with males. Furthermore, it is possible to collect two or more species in the same foam mass; thus, the separation and identification of the specimens must be done carefully.
1. Head, legs and pronotum creamy yellow in apterous form (Fig. 4 I); pronotum brown on anterior lobe in some macropterous specimens (Fig. 3 A, C); male proctiger with a small conical process on half of dorsal surface; paramere wide at base, tapering distally, with hook-like apex (Fig. 2 E)................................... Oiovelia spumicola Spangler (Venezuela)
- Head, legs and pronotum orange, reddish brown, orange brown or blackish in apterous and macropterous forms (Figs. 4 A–H); male proctiger without small conical process on dorsal surface (as in figs. 2D, F); apex of paramere rounded or truncate, not hook-like (Figs. 2 D, F, G–N)........................................................................... 2
2. Posterior lobe of pronotum with an evident whitish pruinose area, generally V-shaped (Figs. 4 A, C, G, H).............. 3
- Pruinose area on posterior lobe of pronotum, if present, with irregular form and not so evident (Figs. 1, 4 B, D–F)........ 6
3. Forewing with uniform and faint whitish pruinosity covering the entire surface, at most absent on a small portion below basal macula (Fig. 4 H); paramere narrowed medially and distinctly widening to apex (Fig. 2 M)......................................................................................... Oiovelia rivicola Spangler (Venezuela and Brazil)
- Forewing with whitish pruinose areas well delimited between cells (Figs. 4 A, C, G); paramere not distinctly widened at apex (Figs. 2 H, J, L)...................................................................................... 4
4. Pronotum uniformly colored, varying from orange to reddish brown (Fig. 4 G); mesocoxae brown to dark brown (Fig. 4 L); paramere tapering to apex (Fig. 2 L)................................. Oiovelia pydanieli Rodrigues & Melo (Brazil)
- Pronotum varying from orange brown to reddish brown, with anterior lobe dark brown to black (Figs. 4 A, C); mesocoxae yellow to yellowish brown (Figs. 4 J–K); if paramere tapering to apex, then proctiger with a slight depression medially on dorsal surface............................................................................................. 5
5. Major part of propleura and all mesopleura dark brown to black (Fig. 4 J); proctiger of male with a slight depression on dorsal surface of posterior half; paramere slightly tapering to apex (Fig. 2 H)........ Oiovelia chenae Rodrigues & Melo (Brazil)
- Pro- and mesopleura with dorsal half orange brown and ventral half dark brown (Fig. 4 K); proctiger of male without depression on posterior half; paramere slightly narrowed medially, with apex slightly more expanded (Fig. 2 J)................................................................................ Oiovelia hamadae Rodrigues & Melo (Brazil)
6. Proctiger of male with a pair (1+1) of small spines medially on dorsal surface (as in fig. 2F)......................... 7
- Proctiger of male without spines on dorsal surface (as in fig. 2D).............................................. 8
7. Pronotum reddish orange; legs yellowish to light brown; pruinosity on forewing not well-defined (Fig. 4 D); paramere with a slight ventral expansion (Fig. 2 G)......................... Oiovelia brasiliensis Moreira, Nessimian & Rúdio (Brazil)
- Pronotum and legs blackish; pruinosity on forewing well-defined between cells (Fig. 4 E); paramere not expanded on ventral surface (Figs. 2 F, K).......................................... Oiovelia machadoi Rodrigues & Moreira (Brazil)
8. Pronotum dark brown to black (Fig. 4 F); paramere with a slight expansion on ventral surface of posterior half (Fig. 2 N)..................................................................... Oiovelia viannai Rodrigues & Melo (Brazil)
- Pronotum distinctly orange to reddish brown (Figs. 1, 4 B); paramere without expansion on ventral surface (Figs. 2 D, I)... 9
9. Head dark brown to black, with posterior region and inner margin of eyes dark orange; pronotum with lateral borders of posterior lobe darker; forewing with faint pruinosity between cells (Fig. 4 B)........................................................ Oiovelia cunucunumana Drake & Maldonado-Capriles (Venezuela, Brazil, Peru, Paraguay, and Argentina)
- Head and pronotum distinctly orange; forewing with distinct pruinosity between cells (Figs. 1 A, E)................................................................................ Oiovelia johnpolhemi sp. nov. (Mexico and Belize)
description: Published as part of Floriano, Carla Fernanda Burguez & Rodrigues, Higor D. D., 2016, A new species of Oiovelia (Heteroptera: Gerromorpha: Veliidae) from Mesoamerica, with an identification key to the genus, pp. 584-592 in Zootaxa 4144 (4) on pages 591-592, DOI: 10.11646/zootaxa.4144.4.8, http://zenodo.org/record/272074