Epimetopus panamensis Perkins, 1979

Perkins, Philip D., 2012, 3531, Zootaxa 3531, pp. 1-95 : 24

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scientific name	Epimetopus panamensis Perkins, 1979
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Epimetopus panamensis Perkins, 1979 View in CoL

Figs. 34 (habitus), 39 (aedeagus), 143 (map)

Epimetopus panamensis Perkins, 1979: 324 View in CoL .

New collection record: Panama: Canal Zone , Barro Colorado, leaf litter, 9° 10' N, 79° 50' W, 19 ii – 9 iii 1975, Lawrence, Erwin (1 MCZ) GoogleMaps .

Differential diagnosis. The habitus of E. panamensis ( Fig. 34) is very similar to that of several other members of the Costatus group; reliable determinations will be based on examination of the aedeagus. The aedeagus is somewhat similar to that of E. punctipennis ( Figs. 39, 62); differing therefrom in having a narrower and longer median lobe, a wider and longer basal piece, and wider and differently shaped parameres. The aedeagus of E. panamensis also has a larger striate collar. Externally ( Figs. 34, 58) the two species differ in color ( E. panamensis is brown, E. punctipennis is reddish), and E. panamensis has much smaller elytral punctures and larger elytral granules linking the punctures.

Distribution. Currently known only from Panama ( Fig. 143).

References

Perkins P. D. (1979). Six new Neotropical species of the aquatic beetles in the Epimetopus costatus complex (Hydrophilidae: Epimetopinae). Coleopterists Bulletin, 33, 319 - 325.