Key to Repipta species in the Americas
1 Connexival segments armed with short spines at the outer apical angles (Fig. 16 E, F)................................ 2
- Connexival segments unarmed at the outer apical angles....................................................... 8
2 Anterior lobe of pronotum homogeneously pigmented........................................................ 3
- Anterior lobe of pronotum with a coloration pattern.......................................................... 7
3 Connexival spines beginning in segment III; posterior lobe of pronotum homogeneously pigmented.................... 4
- Connexival spines beginning in segment II, III, or IV (if beginning in the segments III and IV, posterior lobe of pronotum with a longitudinal band).................................................................................... 5
4 Submedian carina present (Fig. 16 B); small species 7.50–8.30 mm (Tab. 14)................................................................................................. R. nigrospinosa Martin-Park & Coscarón, sp. nov.
- Submedian carina absent; medium species 13.80 mm (Tab. 8) (Figs 2 A, 5I)................................................................................................... R. ecuadorensis Martin-Park & Coscarón, sp. nov .
5 Spines not beginning in segment II, abdominal width bigger than 2.00 mm........................................6
- Spines in II–VI connexival segments, abdominal width less than 2.50 mm [see description of Stål (1868)] (Figs 4 A, 7A)...................................................................................... R. spinosa (Fabricius)
6 Spines on IV–VI connexival segments; pronotum bigger than 2.60 mm (Tab. 3) (Figs 1 E, 5D).................................................................................................. R. ayelenae Martin-Park, sp. nov.
- Spines on III–VI connexival segments; pronotum width less than 2.35 mm (Figs 3 D, 6I) (Tab. 16)............................................................................... R. paraguayensis Martin-Park & Coscarón, sp. nov.
7 Spines only on segment VI; abdomen with a lateral band on segments III–V (Figs 4 B, 7B).......................................................................................... R. unispina Martin-Park & Coscarón, sp. nov.
- Spines on segment II–VI; abdomen with a lateral band on segments I–IX (Figs 3 G, 6L)............ R. sexdens (Fabricius)
8 Urosternites ventrally with an intersegmental suture pigmented (Figs 5 L, 7C)...................................... 9
- Urosternites ventrally without an intersegmental suture pigmented.............................................. 12
9 Posterior lobe of pronotum with a pattern and posterior margin lighter........................................... 10
- Posterior lobe of pronotum without a pattern and homogeneously pigmented (Figs 2 D, 5L)........... R. fuscospinosa Stål
10 Posterior lobe of pronotum with other pattern; membrane hyaline brown......................................... 11
- Posterior lobe of pronotum with an inverted “V” pattern reaching humeral and discal spines (Fig. 3 I, 15B); membrane hyaline transparent.......................................................................... R. taurus (Fabricius)
11 Anterolateral angles and collar form an inverted “U” pattern reaching or close to anterior acetabulum (Fig. 16A); scutellum with a dark dot in the principal body (Fig. 2 E, F); legs homogeneously pigmented...................... R. fuscipes Stål
- Anterolateral angles, collar, and scutellum of one color, legs not homogeneously pigmented (Fig. 1 I, 5H)........................................................................... R. costarrisensis Martin Park & Coscarón, sp. nov .
12 Posterior process of scutellum acute (Fig. 16 C)............................................................. 13
- Posterior process of scutellum acuminate (Fig. 16 D)......................................................... 18
13 Submedian carina visible.............................................................................. 14
- Submedian carina not clearly visble...................................................................... 15
14 Submedian carina beginning in the middle of anterior lobe of pronotum and reaching discal spines of posterior lobe of prono- tum (Fig. 2 G); species more than 13 mm of length (Tab. 11).......... R. hondurensis Martin-Park & Coscarón, sp. nov.
- Submedian carina beginning in the middle of anterior lobe of pronotum without reaching the middle of posterior lobe of prono- tum (Fig. 1 F); species less than 12 mm of length (Tab. 4).............. R. brailovskyi Martin-Park & Coscarón, sp. nov.
15 Hemelytra surpassing ≤ 0.68 mm the abdomen.............................................................. 16
- Hemelytra surpassing 1.70 mm the abdomen............................................................... 17
16 Posterior lobe of pronotum with a light brown middle narrow longitudinal band; posterior margin of posterior lobe of prono- tum curved; discal spines very short (dentiform) (Fig. 16 G)..................................... R. nigronotata Stål
- Posterior lobe of pronotum with two dark brown broad longitudinal irregular bands; posterior margin of posterior lobe of pro- notum straight (Fig. 3 B); discal spines long [see original description of Champion (1899)]........... R. mucosa Champion
17 Collar of anterior lobe of pronotum thin (Fig. 3 F); anterior lobe of pronotum with a light brown longitudinal band (Fig. 16 H).............................................................. R. schaeferi Martin-Park & Coscarón, sp. nov.
- Collar of anterior lobe of pronotum thick (Fig. 1 D); anterior lobe of pronotum homogeneously pigmented...... R. antica Stål
18 Urosternites laterally with a longitudinal band pattern........................................................ 19
- Urosternites laterally without a band pattern............................................................... 21
19 Segments II–VII with a dark brown longitudinal irregular band; mid-, and hind femora light brown except apically brown; parameres exceeding abdomen (Fig. 5 B)......................... R. argentinensis Martin-Park & Coscarón, sp. nov.
- Different combination from above; mid-, and hind femora with other coloration pattern; parameres not exceeding abdomen...................................................................................................... 20
20 Segments II–V with a dark brown longitudinal band [see original description of Barber (1925)]; mid-, and hind femora light brown with two brown bands beyond the middle and apically (Fig. 1 A)........................... R. annulipes Barber
- Segments II–VIII with a dark brown almost black longitudinal band; mid-, and hind femora brown homogeneously pigmented (Fig. 6 D)................................................................................ R. lepidula Stål
21 Species less than 12.3 mm long (Tab. 9)................................................................... 22
- Species more than 12.3 mm long (Tab. 6).................................................................. 23
22 Posterior lobe of pronotum with an inverted “V” pattern or four bands beginning in the anterior margin and reaching each humeral and discal spines (Figs 2 B, C, 14A–D).................................... R. flavicans (Amyot & Serville)
- Posterior lobe of pronotum with a middle longitudinal band across discal spines (Fig. 1 G)........................................................................................ R. brasiliensis Martin-Park & Coscarón, sp. nov.
23 Antennal segment more than 5.00 mm long (Tab. 6); pronotum spines yellowish; posterior margin of posterior lobe red or light red....................................................................... R. coccinea (Herrich-Schaeffer)
- Antennal segment I less or equal to 5.00 mm long and different combination from above............................ 24
24 Eyes surpassing inferior margins of head; fore femora red basally and brown apically (Figs 3 E, 6J).................................................................................. R. ruficorpus Martin-Park & Coscarón, sp. nov.
- Eyes not surpassing inferior margins; fore femora dark brown (Figs 3 C, 6H)......................... R. obscuripes Stål