Figures 1-4. Lucanobium spp. 1-3 in A second species of Lucanobium Howden and Lawrence from South America (Coleoptera: Lucanidae: Aesalinae)

Figures 1-4. Lucanobium spp. 1-3) Lucanobium guianense n. sp., male holotype: 1) Dorsal habitus; 2) Head and protibiae; 3) Male genitalia, a) dorsal and b) lateral views. 4) Lucanobium squamosum, male genitalia from Howden and Lawrence 1974, a) dorsal and b) lateral views (reproduced with permission).