Plochionocerus

Asiain, Julieta, Márquez, Juan & Morrone, Juan J., 2007, Phylogenetic systematics of the genera Plochionocerus Dejean and Agrodes Nordmann (Coleoptera: Staphylinidae: Xantholinini), Zootaxa 1584, pp. 1-53 : 9

publication ID	https://doi.org/ 10.5281/zenodo.178410
DOI	https://doi.org/10.5281/zenodo.6246756
persistent identifier	https://treatment.plazi.org/id/965DBB53-FFC3-5A7C-2399-FDF670DB549A
treatment provided by	Plazi
scientific name	Plochionocerus
status

Treatment

Key to Plochionocerus View in CoL and related genera

1. Head with lateroventral furrows ( Fig. 15 View FIGURES 9 – 16 ), ventral surface with expanded, umbilicate punctures ( Figs. 50, 51, 53 View FIGURES 48 – 53 ; except P. hermani View in CoL , Fig. 52 View FIGURES 48 – 53 ); elytral hind margin with depression or notch ( Fig. 59 View FIGURES 54 – 62 ) .............. ........................................................................................................................................... Plochionocerus View in CoL

1’. Head without lateroventral furrows ( Figs. 10, 16 View FIGURES 9 – 16 ), ventral surface lacking expanded, umbilicate punctures, ( Figs. 48 View FIGURES 48 – 53 , 67 View FIGURES 67 – 68 ); elytral hind margin without depression or notch ( Fig. 58 View FIGURES 54 – 62 ) ..................................... 2

2(1’). Head more than 1.5 times as long as wide (1.54–2.00 times; Fig. 3 View FIGURES 1 – 6 ), with lateral margins convex ( Fig. 10 View FIGURES 9 – 16 ); fore margin of labrum with two pairs of small, lateral teeth and one pair of central, larger teeth ( Fig. 37 View FIGURES 32 – 39 ); apical palpomere of labium elongate ( Fig. 42 View FIGURES 40 – 47 ); prosternum slightly oblong (length/width ratio 1.04–1.20; Fig. 67 View FIGURES 67 – 68 ) ........................................................................................................................ Agrodes View in CoL

2’. Head 1.5 times or less as long as wide ( Fig. 4 View FIGURES 1 – 6 ), lateral margins with a flat or depressed area delimited by two carinae ( Fig. 16 View FIGURES 9 – 16 ); fore margin of labrum with two pairs of lobes or teeth of variable length ( Fig. 33 View FIGURES 32 – 39 ); apical palpomere of labium slightly widened toward apex ( Fig. 41 View FIGURES 40 – 47 ); prosternum transverse (length/ width ratio 0.65–0.88) ...................................................................................................................... Renda View in CoL