New York Natural Heritage Program
Little Bluet
Enallagma minusculum Morse, 1895
Insects

Habitat [-]
Little Bluets are known to inhabit ponds and lakes with sandy substrate, mainly in coastal plain ponds with emergent vegetation along the shoreline (Carpenter 1991, Lam 2004). The largest Long Island population is known from a coastal plain pond which contains the following emergent plants: three-square bulrush (Schoenoplectus pungens), jointed rush (Juncus articulatus), many-flowered pennywort (Hydrocotyle umbellata), seven-angle pipewort (Eriocaulon aquaticum), and golden hedge-hyssop (Gratiola aurea). The pond is surrounded by a wooded upland as well as residences (New York Natural Heritage Program 2011). Other studies in New England indicate a strong association with between little bluets and E. aquaticum (Brown 2005).

Associated Ecological Communities [-]
  • Coastal plain pond
    The aquatic community of the permanently flooded portion of a coastal plain pond with seasonally, and annually fluctuating water levels. These are shallow, groundwater-fed ponds that occur in kettle-holes or shallow depressions in the outwash plains south of the terminal moraines of Long Island, and New England. A series of coastal plain ponds are often hydrologically connected, either by groundwater, or sometimes by surface flow in a small coastal plain stream.
  • Coastal plain pond shore
    The gently sloping shore of a coastal plain pond with seasonally and annually fluctuating water levels. Plants growing on the pond shore vary with water levels. In dry years when water levels are low there is often a dense growth of annual sedges, grasses, and herbs. Submerged and floating-leaved aquatic plants, such as fragrant waterlily and pondweeds, may become "stranded" on the exposed shore. In wet years when the water level is high only a few emergents and floating-leaved aquatics may be noticeable. The vegetation of this pond shore community can change dramatically from one year to the next depending on fluctuations in groundwater levels.

Associated Species [-]
  • Familiar Bluet (Enallagma civile)
  • Skimming Bluet (Enallagma geminatum)
  • Orange Bluet (Enallagma signatum)
  • Slender Bluet (Enallagma traviatum)
  • Swamp Spreadwing (Lestes vigilax)