Anisoscelis, Latreille, 1829

Leavengood, John M., Brailovksy, Harry & Barrera, Ernesto, 2024, Studies in the New World tribe Anisoscelini Laporte, 1832 (Heteroptera: Coreidae: Coreinae): updated distributions, nomenclatural changes, and keys to the genera of the tribe and the species of Anisoscelis Latreille, 1829 and Bitta Osuna, 1984, Zootaxa 5415 (2), pp. 241-268 : 243

Key to the species of Anisoscelis and Bitta

1. Outer dilation of hind tibia reaching the apex of the tibia; hind tibia not widely expanded; femora with only two subdistal ventral spines ( Fig. 6 ); collar laterally expanded into a short acute projection [ Anisoscelis Latreille ].................... 2

1’. Outer dilation of hind tibia short, not reaching the apex of the tibia; hind tibia widely dilated; femora ventrally armed with two subapical spines and one row of acute spines extending along the total length; collar laterally rounded [ Bitta Osuna ]...... 5

2. Antennal segments II–III pale to dark-yellow; posterior lobe of pronotal disk at midline with wide triangular bluish-green spot ( Fig. 5 )................................................................................ A. scutellaris Stål

2’. Antennal segments II–III dark-brown to black with basal and apical joint yellow; posterior lobe of pronotal disk without triangular metallic bluish-green spot...................................................................... 3

3. Fore femur pale yellowish-orange, lacking black longitudinal stripes ( Fig. 1 ); brown to black discoidal spot near posterior margin of mesopleura and close to the anterior lobe of metathoracic peritreme...................... .. A. discolor (Stål)

3’. Fore femur with two complete or almost complete black longitudinal stripes; posterior margin of mesopleura without brown to black discoidal spot....................................................................................4

4. Scutellum, clavus and corium (except along the margin) with metallic bluish-green or bluish-purple reflections; pronotal disk with bluish-green or bluish purple reflections except collar and calli pale to dark-orange ( Figs. 2–3, 6 )..................................................................................................... A. foliaceus (Fabricius)

4’. Scutellum pale brownish-orange with apex yellow; clavus dark-orange scattered with metallic bluish-green reflections; corium dark-orange, with frontal angles and anterolateral borders pale-yellow, and posterolateral borders dark-yellow and next a metallic bluish-green scattered reflections ( Fig. 4 )......................................... A. marginellus (Dallas)

5. Pronotum tricolored, posterolateral borders and posterior border yellow, with a black transverse band between humeri, the rest pale to dark-orange.................................................................................... 6

5’. Pronotum never tricolored, usually orange with posterolateral borders and posterior border yellow, lacking black transverse band................................................................................................8

6. Antenniferous tubercles, postocular surface, ocellar tubercle and neck black or yellow; humeral angles expanded, apically subacute, stout, directed laterally ( Fig. 9 ).................................................. B. gradadia (Distant)

6’. Antenniferous tubercles, postocular surface, ocellar tubercle and neck pale-yellow to pale-yellowish-orange; humeral angles with short acute projection directed backward............................................................... 7

7. Clavus shiny reddish with the margin next to the scutellum black; corium shiny reddish with apical and costal borders yellow and next to costal border a black longitudinal stripe; claval and corial veins unicolor, shiny reddish ( Fig. 10 )........................................................................................... B. hymeniphera (Westwood)

7’. Clavus and corium black with claval and corial veins and apical and costal margins yellow ( Fig. 8 )................................................................................................. B. alipes (Guérin-Méneville)

8. Femora yellow with two complete dark-brown to black longitudinal stripes: antennal segments II–III dark-brown ( Fig. 12 ).......................................................................... B. podalica Brailovsky & Mayorga

8’. Femora pale-yellowish-orange without dark-brown longitudinal stripes or if present are short and restrricted to the anterior third; antennal segments II–III pale-yellowish-orange to castaneous-orange....................................... 9

9. Femora entirely yellowish-orange; claval and corial veins unicolorous to weakly yellow with reddish to dark-orange surface; humeral angles tiny, subacute, directed posteriorly ( Fig. 7 )..................................... B. affinis (Westwood)

9’. Femora yellowish-orange with short dark-brown longitudinal stripe restricted to the anterior third; claval and corial veins pale-yellow, contrasting with the reddish-castaneous surface; humeral angles broad, slightly expanded, directed laterally ( Fig. 11 )................................................................................... B. lurida (Brailovsky)

Figures

FIGURES 1–6. 1. Anisoscelis discolor (Stål); 2–3. A. foliaceus (Fabricius); 4. A. marginellus (Dallas); 5. A. scutellaris Stål; 6. A. foliaceus.

FIGURES 7–12. 7. Bitta affinis (Westwood); 8. B. alipes (Guérin-Méneville); 9. B. gradiada (Distant); 10. B. hymeniphera (Westwood), holotype; 11. B. lurida (Brailovsky), holotype; 12. B. podalica Brailovsky and Mayorga, holotype.