Katasophistes merida, Girón & Short, 2018

Giron, Jennifer C. & Short, Andrew Edward Z., 2018, Three new genera of acidocerine water scavenger beetles from tropical South America (Coleoptera, Hydrophilidae, Acidocerinae), ZooKeys 768, pp. 113-158 : 131-133

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Katasophistes merida

sp. n.

Katasophistes merida sp. n. Figs 10A-D View Figure 10 ; 11A-C View Figure 11 ; 12D View Figure 12 ; 13 View Figure 13 ; 14A-D View Figure 14

Type material examined.

Holotype (male): " VENEZUELA: Mérida State/ 8°51.933'N, 70°37.131'W, 1682 m/ ca. 12 km SE of Santo Domingo/ leg. Short, Arias & Gustafson, wall seeps along river; 22.i.2012; VZ12-0122-03C" (MIZA). Paratypes: (33): VENEZUELA: Mérida State: "12Km SE/ Sta. Domingo/II-24-1969/ P. & P. Spangler" (3, USNM); "12 Km. SE Sto. Dom./ 24 Feb. 76/ C.M. & O. S. Flint" (1, USNM); same data as holotype (14, SEMC); same data as holotype except "leg. Short, Arias, & Gustafson; log and stick jams in river; VZ12-0122-03B" (3, SEMC); same, except "Short & Arias; wall seeps; VZ12-0122-03A" (6, MIZA, MALUZ, SEMC); same, except “VZ12-0122-03C2” (1, SEMC, DNA voucher SLE 426); " 8°52.423' N, 70°37.611'W, 1616 m/ Cascada Velo de la Novia; 24.i.2012/ leg. Short, Arias, & Gustafson / seeps by waterfall/; VZ12-0124-01A" (4, SEMC); same, except "logs & Kicknetting; VZ12-0124-01B" (1, SEMC).

Differential diagnosis.

Katasophistes merida is easily recognized because of the striking rows of large and deep systematic punctures along the elytra and its relatively short and stout maxillary palps.


Body length 2.7-3.4 mm, width 1.7-2.4 mm. Body broadly oval, moderately convex (Fig. 10A, B View Figure 10 ). General coloration dark brown, slightly paler along margins of pronotum and elytra (Fig. 10 A, B View Figure 10 ). Each elytron with five rows of large and deep systematic punctures. Apex of fifth abdominal ventrite truncate (Fig. 11C View Figure 11 ). Aedeagus (Fig. 12D View Figure 12 ) with basal piece nearly 0.8-times the length of parameres; parameres at widest point, nearly 0.6-times greatest width of median lobe; apex of parameres narrowly round; apex of median lobe with median pointed projection.


Noun in apposition. Named after the Venezuelan State of Mérida, where the beetles have been collected.


Venezuela ( Mérida). Elevation range 1616-1682 m. See Fig. 13 View Figure 13 .


This species is associated with seepage and waterfall habitats in the Andes, where it has been collected at several sites in wet rock. See Fig. 14 A-D View Figure 14 .