﻿-65- 
  

  

  with 
  the 
  ocelli 
  wanting 
  or, 
  if 
  present, 
  situated 
  on 
  the 
  front 
  edge 
  of 
  

   the 
  head. 
  

  

  The 
  three 
  species 
  of 
  the 
  first 
  group 
  on 
  our 
  list 
  have 
  been 
  but 
  little 
  

   noticed 
  by 
  economic 
  entomologists. 
  Stobera 
  tricarinata 
  (PI, 
  I., 
  Fig. 
  i) 
  

   and 
  Liburnia 
  ornata 
  (PI. 
  I., 
  Fig. 
  3) 
  have 
  a 
  broad 
  brown 
  cloud 
  in 
  the 
  

   shape 
  of 
  an 
  inverted 
  V 
  near 
  the 
  tip 
  of 
  each 
  wing. 
  In 
  Stobera 
  the 
  wing 
  

   veins 
  are 
  all 
  spotted 
  alternately 
  black 
  and 
  white, 
  and 
  there 
  is 
  a 
  brown 
  

   spot 
  on 
  the 
  lower 
  edge 
  of 
  the 
  wing 
  within 
  the 
  inverted 
  V. 
  The 
  head 
  

   and 
  thorax 
  are 
  yellowish 
  or 
  brownish 
  above, 
  and 
  the 
  face 
  is 
  barred 
  with 
  

   black. 
  Liburnia 
  ornata 
  is 
  most 
  quickly 
  recognized 
  by 
  a 
  conspicuous 
  

   narrow 
  white 
  line 
  from 
  the 
  middle 
  of 
  the 
  back 
  over 
  the 
  thorax 
  and 
  head, 
  

   with 
  a 
  black 
  line 
  each 
  side. 
  It 
  has 
  a 
  clearer 
  wing, 
  with 
  black 
  dots 
  on 
  

   the 
  basal 
  part 
  only 
  of 
  some 
  of 
  the 
  veins. 
  Narrow 
  brown 
  lines 
  extend 
  

   from 
  the 
  V-shaped 
  cloud 
  along 
  some 
  of 
  the 
  veins. 
  

  

  Liburnia 
  puella 
  (PI. 
  I., 
  Fig. 
  2) 
  has 
  a 
  black 
  head 
  and 
  thorax 
  and 
  

   transparent 
  wings, 
  each 
  wing 
  with 
  a 
  brown 
  spot 
  at 
  its 
  upper 
  edge 
  near 
  

   the 
  middle 
  of 
  the 
  length 
  of 
  the 
  body, 
  making, 
  when 
  the 
  wings 
  are 
  folded, 
  

   a 
  distinct 
  brownish 
  blotch 
  near 
  the 
  middle 
  of 
  the 
  body. 
  

  

  Four 
  species 
  of 
  Agallia 
  taken 
  on 
  beets 
  comprise 
  the 
  second 
  of 
  our 
  

   groups. 
  In 
  these 
  the 
  narrow 
  upper 
  surface 
  of 
  the 
  .head 
  bears 
  at 
  least 
  a 
  

   pair 
  of 
  round 
  black 
  dots, 
  and 
  the 
  prothorax 
  usually 
  has 
  one 
  or 
  two 
  

   pairs 
  of 
  dots, 
  anterior 
  and 
  posterior, 
  with 
  sometimes 
  a 
  longitudinal 
  

   black 
  line 
  between 
  them. 
  

  

  Agallia 
  4-punctata 
  (Fig. 
  5, 
  a') 
  is 
  yellowish 
  brown, 
  the 
  dots 
  on 
  the 
  

   head 
  distinct 
  as 
  well 
  as 
  a 
  pair 
  on 
  the 
  prothorax 
  close 
  to 
  its 
  hind 
  margin. 
  

   A. 
  pair 
  of 
  prothoracic 
  dots 
  in 
  front 
  of 
  these 
  and 
  a 
  median 
  dark 
  line 
  are 
  

   also 
  sometimes 
  present. 
  The 
  wings 
  are 
  brown, 
  with 
  pale 
  veins. 
  Agallia 
  

   novella 
  (Fig. 
  6, 
  «), 
  a 
  common 
  Illinois 
  species, 
  is 
  also 
  yellowish 
  brown, 
  

   the 
  imago 
  often 
  more 
  or 
  less 
  suffused 
  with 
  bronze. 
  The 
  head 
  bears 
  four 
  

   distinct 
  black 
  dots 
  above, 
  an 
  additional 
  one 
  on 
  each 
  side 
  being 
  placed 
  

   behind 
  the 
  eyes. 
  The 
  posterior 
  pair 
  of 
  thoracic 
  dots 
  are 
  well 
  marked 
  

   but 
  commonly 
  rather 
  small, 
  placed 
  about 
  half 
  way 
  between 
  the 
  front 
  

   and 
  hind 
  margins, 
  and 
  the 
  median 
  longitudinal 
  thoracic 
  line 
  is 
  also 
  

   usually 
  present. 
  The 
  wings 
  are 
  pale, 
  with 
  paler 
  veins. 
  Agallia 
  

   sanguinolenta 
  (Fig. 
  7, 
  a), 
  our 
  commonest 
  species 
  of 
  the 
  genus, 
  is 
  com- 
  

   monly 
  darker 
  brown; 
  the 
  dots 
  on 
  the 
  head, 
  and 
  usually 
  the 
  first 
  pair 
  on 
  

   the 
  prothorax, 
  are 
  large 
  and 
  distinct, 
  the 
  other 
  markings 
  not 
  so 
  evident. 
  

   The 
  prothorax 
  and 
  the 
  head 
  above 
  are 
  commonly 
  streaked 
  with 
  darker 
  

   bands, 
  the 
  scutellum 
  bears 
  a 
  W-shaped 
  dusky 
  mark, 
  and 
  the 
  wings 
  are 
  

   more 
  or 
  less 
  dusky 
  brown 
  with 
  the 
  veins 
  partly 
  black 
  and 
  partly 
  white. 
  

   Ap^allia 
  uhleri, 
  a 
  western 
  species, 
  is 
  a 
  pale 
  insect 
  with 
  two 
  dots 
  on 
  the 
  

   head 
  and 
  only 
  a 
  trace 
  of 
  the 
  first 
  pair 
  on 
  the 
  thorax. 
  The 
  wings 
  are 
  

   whitish 
  with 
  the 
  veins 
  darker 
  posteriorly. 
  

  

  The 
  nymphs 
  of 
  these 
  species 
  of 
  Agallia 
  present 
  also 
  some 
  evident 
  

  

  