Cymindidina

Rasool, Iftekhar, Felix, Ron F. F. L., Abdel-Dayem, Mahmoud S. & Aldhafer, Hathal M., 2017, A review of subtribe Cymindidina Laporte, 1834 (Coleoptera: Carabidae: Lebiini) in Southwestern Saudi Arabia, with descriptions of two new species, Zootaxa 4236 (1), pp. 157-171 : 158

Key to genera and species of subtribe Cymindidina of the Saudi Arabia

1. Last labial palpomeres in males not strongly dilated and truncate at apex ( Fig. 3 ). Head with two nearly straight ridges near eyes (near clypeus there can be some shallow wrinkles) ( Fig. 1 )...................................... Afrotarus ...2

- Last labial palpomeres in males strongly dilated and strongly truncate at apex ( Fig. 4 ). Head with two or more rather irregular ridges near eyes, branched (also here some wrinkles near clypeus) ( Fig. 2 ).................. Cymindis and Arrhostus . .. 4

2. Setae at hind angles of pronotum present; sides of pronotum slightly sinuate, hind angles small but distinct ( Fig. 11 ); aedeagus not distinctly hooked at apex ( Fig. 17 )............................................... A. scotti ( Basilewsky, 1948)

- Setae at hind angles of pronotum absent; sides of pronotum barely sinuate, hind angles broadly rounded ( Figs. 5, 6 , 9, 10 ); aedeagus hooked at apex ( Figs. 15, 16 ).................................................................... 3

3. Pronotum not transverse ( Fig. 5 ); elytra with dense pubescence, the latter denser and long laterally ( Fig. 7 )... A. fadli sp. n.

- Pronotum slightly transverse ( Fig. 6 ); elytra with scattered and rather short pubescence laterally ( Fig. 8 )...................................................................................................... A. soudaensis sp. n.

4. Pronotum ( Fig. 13 ) almost completely rounded laterally and basally, except for the tiny posterior angles, marginal gutter of pronotum very wide; eyes rather flat; temples long; elytral dark markings along the suture tridental, covering intervals I–IV (or only half of IV); elytral base with scutellar spot of four intervals wide, sometimes scutellar spot and the outer stripes are connected, surrounding a light area, interval VII in apical half dark, this stripe longly narrowed and pointed, backwards almost reaching to the end of the dark part near the suture; male genitalia in lateral view gently curved, apical third strongly narrowed (horn like tip) ( Fig. 18 )............................................... Cymindis (s. str.) laevistriata Lucas, 1846

- Pronotum much less rounded, more straightly narrowed towards base ( Figs. 12, 14 ), marginal gutter of pronotum narrower; eyes much more protruding; elytral dark markings either strongly reduced or much more extended ( Figs. 24, 25 )........ .. 5

5. Pronotum wider than head, its sides straight before hind angles ( Fig. 14 ), marginal gutter of pronotum wider; eyes less protruding ( Fig. 14 ); elytral dark markings along suture absent or, at most, covering intervals I–II and then barely tridental; marking on interval VII very narrow or absent, scutellar spot absent ( Fig. 25 )............. Cymindis (s. str.) suturalis Dejean, 1825

- Pronotum as wide as head or narrower, sides sinuate before hind angles ( Fig. 12 ), marginal gutter of pronotum very narrow; eyes much more protruding; elytral dark markings strongly extended, on intervals I–VII, marking on interval VII toward apex wide, also the dent on intervals III–IV towards base very short and blunt ( Fig. 24 ), scutellar area with dark marking of four intervals wide.................................................. Cymindis (Arrhostus) andreae Ménétriés, 1832

Figures

FIGURES 1 – 4. Head ridges and labial palp of Cymindis and Afrotarus: 1, 3 A. fadli sp. n. 2, 4 C. suturalis Dejean, 1825.

FIGURES 9 – 14. Head and pronotum of Afrotarus and Cymindis: 9 A. fadli sp. n. 10 A. soudaensis sp. n. 11 A. scotti (Basilewsky, 1948) 12 C. andreae Menetries, 1832 13 C. laevistriata Lucas, 1846 14 C. suturalis Dejean, 1825 (Figures 13 and 14 taken by Jan Muilwijk in RMNH).

FIGURES 15 – 19. Aedeagus of Afrotarus and Cymindis: 15 A. fadli sp. n. 16 A. soudaensis sp. n. 17 A. scotti (Basilewsky, 1948) 18 C. laevistriata Lucas, 1846 19 C. suturalis (Dejean, 1825). (Figure 18 taken by Jan Muilwijk in RMNH).

FIGURES 5 – 8. Pronotum and elytra of Afrotarus: 5, 7 A. fadli sp. n. 6, 8 A. soudaensis sp. n.

FIGURES 20 – 25. Habitus of Afrotarus and Cymindis: 20 – 21 Males of A. fadli sp. n. 22 male of A. soudaensis sp. n. 23 Paratype of A. scotti (Basilewsky, 1948) 24 C. andreae Menetries, 1832 25 C. suturalis Dejean, 1825.