EXAMINE THE CLYPEAL HAIRS. 



By the examination, two species, sinensis and barblTOStris, can be 

 distinguished from every other species, although not from one another; two others, 

 maClllatUS and karwari, likewise can be distinguished from every other species 

 but not from each other: and seven, UWlbroSUS, aitkeni, albirostris, kochi, 

 fuligtnoSUS, rossi, and ludlowi, can be absolutely identified. 



Sinensis and barbirostris must be differentiated by an examination 

 of the anterior thoracic hairs, which Dr. Stanton, who has enriched our knowledge 

 of Malay mosquitos so much, has discovered are distinct in the two species. 

 Dr. Stanton has very kindly allowed me to illustrate this distinction here. 



maculatus and karwari can be differentiated by an examination 

 of the palmate hairs, a discovery made independently by Dr. Stanton and 

 myself. 



