Species

• G. cuneipennis Alexander
  Charles Paul Alexander
  Charles Paul Alexander was an American entomologist born September 25, 1889, in Gloversville, New York. He died on December 3, 1981.Charles Paul Alexander was the son of Emil Alexander and Jane Alexander . He entered Cornell University in 1909, earning a Bachelor of Sciences in 1913 and a Ph. D. in...
  
  , 1921
• G. lindneri Mannheims, 1961