FIGURE 6. Illustrations a–d in Revision of the Mecodema curvidens species group (Coleoptera: Carabidae: Broscini)

FIGURE 6. Illustrations a–d show the different character states of the indentation of the median process of the mentum: (a) broadly indentate (M. manaia), (b) narrowly indentate (M. pluto), (c) notched (M. infimate), (d) slightly notched or unmodified (M. parataiko). Illustrations e–g show the defining form (hashed lines) of the mentum lobe: (e) triangulate lateral lobe (Oregus); (f) rounded lateral lobe (M. alternans); (g) squared lateral lobe (M. curvidens). The difference in depth of the gula pits can be seen in: (e) deep (Oregus) and (g) shallow (M. curvidens). Scale bars for e, f, & g = 1 mm.Published as part of Seldon, David S. & Leschen, Richard A. B., 2011, Revision of the Mecodema curvidens species group (Coleoptera: Carabidae: Broscini), pp. 1-45 in Zootaxa 2829 on page 9, DOI: 10.5281/zenodo.20285