Coverage encompasses diving beetles around the world at and above the genus rank, with 188 Dytiscid
genera described and illustrated in taxon accounts.
2000) is the largest dytiscid
subfamily with about 1500 species and a worldwide distribution (Nilsson and Holmen 1995).
The impact of other predators such as the Dragonfly nymphs, Dytiscid
and Hydrophilid beetles were limited to large deep containers.
Eggs, larvae and adults of almost all dytiscid
species are aquatic and live in a wide variety of freshwater habitats.
Sites with high CPOM/plant abundance, greater depth and relatively low pH supported relatively high densities of physid gastropods, dytiscid
beetles, simuliid flies and asellid isopods and relatively low densities of heptageniid mayflies (Fig.
With additional collecting, this dytiscid
may eventually be found outside of Arkansas in adjacent states (S.
Morphological patterns among co-occurring dytiscid
A new state record, a dytiscid
beetle is Neoporus sulcipennis (Fall).
Several other invertebrate taxa (corixid and gerrid hemipterans, dytiscid
beetles) immigrate to the artificial ponds each spring, complete one or several generations, and then return to the natural basins to overwinter (Wissinger 1997).
The presence of both dytiscid
and hydrophilid water beetles in the samples suggests that this was a mire that was consistently well-vegetated at its edges, but maintained open water throughout the interval represented in Unit 2.
Based on distributional patterns of several other dytiscid
genera and morphology, initially it was suspected that there were as many as four taxa.
Alternative prey influences efficacy of biocontrol agents, evident from the studies on cyclopoid copepod (26), dytiscid
beetles (27,28), odonate larvae (29), larvae of the predatory mosquito Toxorhynchites splendens (30), and heteropteran bugs (31-33).