01162nas a2200133 4500008004100000245010100041210006900142260013900211300000800350520058000358100002100938700002500959856004400984 1982 eng d00aA new species of aquatic beetle, Disersus uncus, from Costa Rica (Coleoptera: Elmidae: Larainae)0 anew species of aquatic beetle Disersus uncus from Costa Rica Col aNagoyabThe Association of the Memorial Issue of Emeritus Professor M. Chûjô, c/o Biological Laboratory, Nagoya Women’s University a1853 a

The riffle beetle genus Disersus is known to occur from Panama throughout the tropical regions of South America; only Panamanian species, Disersus longipennis Sharp, was previously described from Central America. The new species, Disersus uncus, the first species Disersus reported from Costa Rica, is described and the distinguishing morphological characters of the two species now known from Central America are described and illustrated. A key is provided to distinguish the two species.

1 aSpangler, P., J.1 aSantiago-Fragoso, S. uhttps://elmidae.myspecies.info/node/136