Stenoeurilla Brailovsky & Barrera 2012

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)