Pogonus Dejean, 1821

Muñoz-Santiago, José & Ortuño, Vicente M., 2022, Revision of the tribe Pogonini (Coleoptera, Carabidae, Trechinae) from the Ibero-Balearic region, European Journal of Taxonomy 846 (1), pp. 75-109 : 80-81

Subgenus Pogonus Dejean, 1821

1. Body coloration uniform: head, pronotum and elytra concolorous .................................................. 2

– Body bicolored: head and pronotum metallic green, elytra orange-testaceous (similar to the appendices) ....................................................................................................................................... 6

2. 3 rd interstria with fewer than 5 setigerous pores ............................................................................... 3

– 3 rd interstria with 5 setigerous pores. Tegument dark brown, with bronze sheen. Pronotum cordiform, transverse or sub-transverse. Length: 5.5–6.0 mm ......... Pogonus (Pogonus) gilvipes Dejean, 1828

3. Pronotum almost quadrangular, with the posterior region weakly narrowed and the base markedly wider than the anterior margin. Length: 6.0–8.0 mm .... Pogonus (Pogonus) riparius Dejean, 1828

– Pronotum cordiform, with the posterior region clearly narrowed and the base barely wider than the anterior margin .................................................................................................................................. 4

4. Tegument bluish green or emerald. Legs yellowish, paler. Pronotal disc smooth, very shiny. Length: 6.5–8.0 mm ............................................................... Pogonus (Pogonus) smaragdinus Waltl, 1835

– Tegument darker, in general bronze. Legs testaceous or brown, darker. Pronotal disk with a fine reticulation that makes it less shiny. Length: 5.5–7.0 mm ................................................................ 5

5. Anterior region of the pronotum markedly punctured. Elytra in general sub-oval, clearly wider than the pronotum. First antennomere brown. Length: 5.0–7.0 mm .......................................................... ....................................................................... Pogonus (Pogonus) chalceus viridanus Dejean, 1828

– Anterior region of the pronotum with a tenuous punctuation, barely visible. Elytra parallel or sub-parallel, barely wider than the pronotum. In general, first antennomere bronze, similar to the tegument of the body. Length: 5.5–6.5 mm ......... Pogonus (Pogonus) littoralis ( Duftschmid, 1812)

6. Elytra narrow, parallel, slightly wider than the pronotum and markedly convex. Pronotum slightly or not transverse, with the lateral sinuosity less marked. Length: 7.0-8.0 mm .................................. ................................................................................ Pogonus (Pogonus) pallidipennis Dejean, 1828

– Elytra sub-parallel, clearly wider than the pronotum and less convex. Pronotum transverse, with the lateral sinuosity more marked. Length: 6.0–7.0 mm .......................................................................... .............................................................................. Pogonus (Pogonus) luridipennis ( Germar, 1822)

Pogonini from the Ibero-Balearic region