FIGURES 19–24 in Giant water scavenger beetles Hydrophilus subgenus Dibolocelus (Coleoptera Hydrophilidae) from Mexico with description of two new species

FIGURES 19–24. Dorsal and ventral view of Hydrophilus (Dibolocelus) spp. 19–20 H. (D.) violaceonitens status restored; 21–22 H. (D.) pollens Sharp; 23–24 H. (D.) cf. purpurascens (Régimbart).Published as part of Arce-Pérez, Roberto, Arriaga-Varela, Emmanuel, Novelo-Gutiérrez, Rodolfo & Navarrete-Heredia, José L., 2021, Giant water scavenger beetles Hydrophilus subgenus Dibolocelus (Coleoptera Hydrophilidae) from Mexico with description of two new species, pp. 387-407 in Zootaxa 5027 (3) on page 396, DOI: 10.11646/zootaxa.5027.3.5, http://zenodo.org/record/544973