The Odonata (Insecta) of Patagonia: A synopsis of their current status with illustrated keys for their identification Author Muzón, Javier Author Pessacq, Pablo Author Lozano, Federico text Zootaxa 2014 3784 4 346 388 journal article 46101 10.11646/zootaxa.3784.4.2 392d0637-1e41-476c-9f59-b5565720ee40 1175-5326 225033 D24E3364-03AC-48E3-891C-DF4E20EE604F Gomphidae ( Fig. 52 ) This family is represented in Patagonia by four species in two genera: Neogomphus and Progomphus . The Patagonian endemic genus Neogomphus is composed of the Chilean endemics N. bidens and N. molestus as well as N. edenticulatus , recorded on both sides of the Andes; all of them inhabit Nothofagus forests. FIGURE 52. Distribution maps. a Neogomphus edenticulatus and N. bidens ; b N. molestcus , Progomphus joergenseni , and Neopetalia punctata . Neogomphus molestus apparently prefers rapid rivers, whereas N. bidens prefers large and slow ones. Neogomphus edenticulatus exhibits a wider habitat preference, being the only Patagonian gomphid found at lakes as well as streams and rivers ( Carle & Cook 1984 ). Neogomphus bidens and N. edenticulatus have been recorded in sympatry ( Carle & Cook 1984 ). The neotropical speciose genus Progomphus is represented only by P. joergenseni , an Andean species recorded from Peru and Bolivia to Argentina and Chile ; this species has a scattered distribution restricted to permanent, 1–2 m wide, sandy streams fed by spring waters, being on occasions abundant ( e.g. Valcheta stream headings in Somuncura plateau). Described larvae were collected in sandy beds at depths of 30–40 cm . Adults fly along the stream, resting on boulders. ( Muzón et al. 2005 , 2010 ; Muzón & Lozano 2011). All Patagonian gomphid larvae have been described ( Needham & Bullock 1943 ; Belle 1992 ; Muzón & Lozano 2011). Both genera can be easily separated not just by their different distribution patterns (forest vs. steppe habitats), but by the orientation of the wingpads: widely divergent in Progomphus and parallel in Neogomphus ( Fig. 41 ).