Helochares (Sindolus) femoratus (Brullé, 1841)

Alves, Tayná, Clarkson, Bruno & Lima, Lucas Ramos Costa, 2020, A new species of Chasmogenus Sharp, 1882 and new records of Hydrophilidae (Coleoptera) from Northeastern Brazil, Zootaxa 4763 (4), pp. 579-586 : 583-584

Helochares (Sindolus) femoratus (Brullé, 1841)

Fig. 11–12 , 16

Material examined: 1 ♂ Brazil, Piauí State, Campo Maior Municipality,Açude Grande, 4°50’12.7”S, 42°10’36.8”W, 09.XI.2018, Moreno, L.A.S. leg. ( CEHJ).

Diagnosis. Medium-sized species (3.9 mm). Dorsal punctation on head, pronotum and elytra moderately coarse and sparse. Mesoventral process strongly elevated, laminar, projected between mesocoxae ( Fig. 12 ). Last abdominal ventrite deeply notched, U-shaped ( Fig. 12 ). Parameres longer than median lobe; apices rounded; dorsal lobule narrow, swollen basally, with two long and narrow arms nearly evenly separated from base to apices, apices narrowly rounded; ventral lobule shorter and wider than dorsal lobule, acuminate at apex ( Fig. 16 ).

Distribution. Argentina and Brazil (states of Pernambuco, Rio de Janeiro and Rio Grande do Sul). New record for the state of Piauí: Campo Maior municipality.

Figures

FIGURES 9–14. Habitus of hydrophilids found in the State of Piauí, Brazil. 9–10) Enochrus sp.: 9, dorsal view; 10, ventral view. 11–12) Helochares (Sindolus) femoratus (Brullé, 1841): 11, dorsal view; 12, ventral view. 13–14) Hydrobiomorpha spatula Bachmann, 1988: 13, dorsal view; 14, ventral view.

FIGURES 15–18.Aedeagus of hydrophilids found in the State of Piauí, Brazil. 15, Enochrus (Methydrus) sp.A; 16, Helochares (Sindolus) femoratus (Brullé, 1841); 17–18, Hydrobiomorpha spatula Bachmann, 1988: 17, ventral view; 18, lateral view.