Identification Keys 213 



58. Abdomen blue-scaled except on first segment, 



and with whitish triangular patches of scales 

 at apices of other segments. 



Lcpidosia cyanesceris, Coquillett. 

 Abdomen without blue scales 59 



59. Bands of light-coloured scales on abdomen. .60 

 Bands of light-coloured scales wanting on ab- 

 domen 74 



60. Segments of abdomen light-banded at apex. 



Culex territans, Walker. 

 Segments of abdomen light-banded at base. .61 



61. Median light line, as well as basal bands, on ab- 



domen Oclilerotatus spenccri, Theobald. 



Median light line wanting 62 



62. Middle of thorax with a narrow, bare stripe on 



each side, from anterior margin to wings. 



Culicclla dyari, Coquillett. 

 Middle of thorax without bare stripes 63 



63. Thorax light brown and with two small light 



spots of scales near middle. Light-coloured 

 bands on basal two-thirds of abdomen of the 

 same width at sides as in middle. Tarsi, for 

 a very short distance each side of sutures, 

 indistinctly light-coloured.' 



Culex restuans, Theobald. 



1 In case the spots are wanting on the thorax of restuans it may 

 in general — that is, in a series — be distinguished f rom pipiens thus : 



C. pipiens : Petiole of second forked vein about twice as long as 

 that of first, and a little over half the length of the lower branch 

 forming its own cell. Petiole of first forked vein about one-seventh 

 the length of the fork. 



C. restuans : Petiole of second forked vein longer than, though 

 not twice as long as, that of first, over two-thirds as long as the lower 

 branch of its own vein, about one-fifth length of first fork. 



C. fatigans : Petiole of second forked vein but little longer than 

 that of the first and about as long as the lower fork of its own cell. 

 Petiole of first vein almost one-third (over one-fourth) the length of 

 its fork. 



