208 Mosquitoes 



28. Abdomen and thorax wholly yellow-scaled. 



OcJderotatus flctcJuri, Coquillett. 

 Abdomen with distinct markings 29 



29. Scales of wings unusually broad, light and dark- 



Scales at middle of thorax dark, light at 

 sides 30 



Scales of wings narrow 31 



30. With cinereous scales on mesonotum. Tibiae 



and femora with many velvety black scales 

 intermixed with white. Beak black. Sub- 

 apical lobe of genitalia prominent, projecting 

 laterally, distinctly excavated below apex. 



Lcpidoplatys sylvicola, Grossbeck. 



Without cinereous scales on mesonotum. Tibiae 

 and femora with lighter scales. Beak not 

 black, but brown. Subapical lobe not emar- 

 ginate below apex. 



Lcpidoplatys squamiger, Coquillett. 



31. Last joint and nearly the whole of the other 



joints of the hind tarsi white. 



OcJderotatus nivitarsis, Coquillett. 

 Last joint black, wholly, or except at base. . .32 



32. Thorax with distinct or indistinct stripes. First 



joint of hind tarsi white on basal third. . . .33 

 Thorax plain except sometimes for faint silvery 

 lines. First joint of hind tarsi white on less 

 than basal fourth in the former case, on basal 

 third in the latter 35 



33. With median dark stripe, which may be very 



faint on thorax, sides ashy 34 



With two whitish stripes on thorax. 



Culex vittatus, Theobald. 



