Synonyms and other taxonomic changes
formerly treated as a subgenus of Gerris
Numbers
6 species in North America listed at
ITIS
they are: amplus, conformis, nebularis, nyctalis, remigis, remigoides
Size
body length 11 mm or more
Identification
hind tibia at least 4 times length of first hind tarsal segment; connexival spines prominent; pronotum dull; first antennal segment more than 0.9x combined length of antennal segments two and three; adults may be winged or wingless
Range
represented throughout North America
Habitat
surface of ponds, lakes, slow-moving streams, rivers
See Also
in Gerris species, body length less than 10.7 mm, connexival spines not prominent, hind tibia less than 3.3 times length of first hind tarsal segment
in Limnoporus species, first antennal segment less than 0.8x combined length of antennal segments two and three
Internet References
distribution and status; PDF doc of several species (C.J. Drak and Halbert M. Harris, courtesy Ohio State U.)
list of world species and distributions (Markku Savela, FUNET)
