Katasophistes superficialis, 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 : 133-136

publication ID


publication LSID


persistent identifier


taxon LSID


treatment provided by

ZooKeys by Pensoft

scientific name

Katasophistes superficialis

sp. n.

Katasophistes superficialis sp. n. Figs 10E-H View Figure 10 ; 12E View Figure 12 ; 13 View Figure 13 ; 14E, F View Figure 14

Type material examined.

Holotype (male): " ECUADOR: Pastaza Province: "AGIP platform Villano B/ along transect 1 & 2/ 24.v.2008; leg. A.E.Z. Short/ small forest stream AS-08-08b" (PUCE). Paratypes (1): ECUADOR: Same data as holotype (1, SEMC, DNA voucher SLE 1189).

Differential diagnosis.

Katasophistes superficialis can be easily differentiated by its size (~4.5 mm), elongate oval shape, the shallow rows of enlarged systematic punctures along the elytra and its relatively long and slender maxillary palps.


Body length 4.5 mm, width 2.4 mm. Body elongate oval, weakly convex (Fig. 10 E, F View Figure 10 ). General coloration uniformly brown. Each elytron with five rows of shallow enlarged systematic punctures. Apex of fifth abdominal ventrite weakly emarginated. Aedeagus (Fig. 12E View Figure 12 ) with basal piece nearly 1.1-times the length of parameres; parameres at widest point, nearly 0.4-times greatest width of median lobe; apex of parameres rounded; apex of median lobe forming an acute angle.


Named in reference to the shallowness of the enlarged systematic punctures along the elytra, with the Latin word superficialis meaning shallow.


Ecuador (Pastaza). See Fig. 13 View Figure 13 .


This species was collected in forested stream pools with abundant detritus in lowland rainforest. See Fig. 14E, F View Figure 14 .