Stenoeurilla, Brailovsky & Barrera, 2012

Brailovsky, Harry & Barrera, Ernesto, 2019, A revision of the Costa Rican species of Stenoeurilla Brailovsky & Barrera (Hemiptera: Heteroptera: Coreidae: Stenoscelideini), with the description of two new species, new distributional records, synonymical note, and key to the known species, Zootaxa 4550 (4), pp. 545-556 : 554-555

Key to the known species of Stenoeurilla

1 Dorsal abdominal segments III–VI yellowish-orange to pale orange with narrow pale brown fringe between the borders of each segment ( Fig. 8 ).................................................................. S. herediana sp. nov.

- Dorsal abdominal segments III–VI black except for paired submedian yellow squares on each segment, or dorsal abdominal segments yellowish-orange with anterior and posterior margin of each segment black................................ 2

2 Dorsal abdominal segments III–VI yellowish-orange witn anterior and posterior margin black; posterior margin of pronotum with wide dark brown to black transverse stripe (posterior border yellow)............. S. peruviana (Brailovsky & Barrera)

- Dorsal abdominal segments III–VI black except for paired submedian yellow squares on each segment; posterior margin of pronotum ochre to yellowish orange without black transverse stripe.............................................. 3

3 Anterior pronotum including calli entirely yellowish white and farinose ( Fig. 5 )............... S. mesoamericana sp. nov.

- Anterior pronotum and calli never yellowish white or farinose.................................................. 4

4 Hind femur entirely pale yellowish-orange to pale castaneous-orange; posterior lobe of pronotum pale yellowish-orange; pro-, meso-, and metapleura and abdominal sterna yellow with scattered black spots..................................... 5

- Hind femur pale yellowish-orange with apical third black to dark brown; posterior lobe of pronotum black to dark brown with bluish green reflections, and with narrow and complete yellow medial stripe....................................... 6

5 Pronotal disk with seven alternate longitudinal stripes, three of them yellowish-orange and four black to dark brown, tinged with bluish green reflections ( Fig. 3 ).......................................... S. pellucida (Brailovsky & Barrera) - Pronotal disk pale yellowish-orange with punctures castaneous-orange, the anterolateral margins reddish or darker and without black longitudinal stripes lateral to midline...................................... S. hansoni (Brailovsky & Barrera)

6 Pronotum glabrous.................................................................... S. glabra Brailovsky

- Pronotum clothed with short erect to decumbent setae......................................................... 7

7 Body slender, shorther than 12.00 mm; fore and middle leg shiny orange.......................... S. maya (Brailovsky)

- Body robust, longer than 12.70 mm; fore and middle legs yellow................................................ 8

8 Pronotal disk, and pro-, meso-, and metapleura black with bluish green reflections or black to dark reddish brown................................................................................................ S. aenescens (Stå)

- Pronotal disk and pro-, meso, and metapleura yellow with scattered black spots.................. S. mimica (Brailovsky)

Figures

FIGURES 6–9. Dorsal abdominal segments of Stenoeurilla spp. 6, S. aenescens (Stål) (female). 7, S. hansoni (Brailovsky & Barrera) (male). 8, S. herediana sp. nov. (male). 9, S. mesoamericana sp. nov. (male).

FIGURES 1–5. Dorsal view of Stenoeurilla spp. 1, S. aenescens (Stål) (female). 2, S. hansoni (Brailovsky & Barrera) (male). 3, S. pellucida (Brailovsky & Barrera) (female). 4, S. herediana sp. nov. (male). 5, S. mesoamericana sp. nov. (male).