﻿NO. 
  1138. 
  AMERICAN 
  TYPHLOCYBINAE— 
  GILLETTE. 
  729 
  

  

  narrow 
  line; 
  front 
  nearly 
  one-half 
  longer 
  tlian 
  broad, 
  once 
  and 
  two- 
  

   thirds 
  the 
  length 
  of 
  clypeus, 
  superior 
  angle 
  broadly 
  obtusely 
  rounded. 
  

   Face 
  coarsely 
  and 
  obsoletely 
  shagreen 
  ed. 
  Disk 
  of 
  vertex 
  sloping, 
  with 
  

   a 
  slight 
  median 
  depression 
  on 
  the 
  posterior 
  half 
  opening 
  into 
  a 
  slight 
  

   depression 
  on 
  the 
  anterior 
  margin 
  of 
  the 
  pronotum, 
  length 
  at 
  the 
  mid- 
  

   dle 
  slightly 
  more 
  than 
  next 
  the 
  eyes. 
  Pronotum 
  opaque, 
  on 
  anterior 
  

   third 
  smooth, 
  on 
  posterior 
  two-thirds 
  indistinctly 
  transversely 
  rugose; 
  

   slightly 
  less 
  than 
  twice 
  as 
  broad 
  as 
  long, 
  

   anterior 
  margin 
  broadly 
  rounded, 
  posterior 
  

   margin 
  somewhat 
  concave, 
  posterior 
  angles 
  

   sharply 
  rounded. 
  Scutellura 
  opaque, 
  with 
  a 
  

   median 
  \)\t 
  iust 
  in 
  front 
  of 
  the 
  transverse 
  ^ 
  y^ 
  ^\ 
  

  

  Figs, 
  ol 
  aiul 
  51;.— 
  Face, 
  and 
  ver- 
  

  

  groove, 
  posterior 
  half 
  irregularly 
  wrinkled. 
  tex 
  and 
  pronotum 
  of 
  empoasca 
  

   Color 
  black; 
  antennae 
  whitish; 
  ocelli 
  sur- 
  nigra. 
  

   rounded 
  by 
  a 
  narrow 
  pale 
  margin; 
  elytra 
  black; 
  posterior 
  third 
  fading 
  

   into 
  smoky 
  subhy 
  aline; 
  anterior 
  tibiae, 
  and 
  all 
  the 
  tarsi, 
  smoky. 
  

  

  Length, 
  2.75 
  to 
  3 
  mm. 
  Described 
  from 
  five 
  males. 
  (See 
  Figs. 
  51, 
  52.) 
  

  

  Type.—^o. 
  3422, 
  U.S.:N".M. 
  

  

  Mountains 
  southwest 
  of 
  North 
  Park, 
  July 
  10, 
  on 
  Artemisia 
  tridentata 
  

   (Baker). 
  

  

  EMPOASCA 
  PULCHELLA 
  Gillette 
  & 
  Baker. 
  

  

  Empoasia 
  pulchelJa 
  Gillette 
  & 
  Baker, 
  Bull. 
  31, 
  Colo. 
  Ag. 
  Exp. 
  Sta., 
  p. 
  109, 
  1895. 
  

  

  Female: 
  Clypeus 
  a 
  third 
  longer 
  than 
  wide, 
  basal 
  suture 
  straight; 
  

   lorae 
  long 
  and 
  narrow, 
  scarcely 
  grooved, 
  attaining 
  the 
  end 
  of 
  the 
  

  

  clypeus; 
  front 
  two-thirds 
  longer 
  than 
  broad, 
  

   nearly 
  twice 
  the 
  length 
  of 
  the 
  clypeus, 
  supe- 
  

   rior 
  angle 
  obtu>ely 
  rounded. 
  Face 
  and 
  ver- 
  

   tex 
  without 
  sculpturing, 
  opaque. 
  Disk 
  of 
  

   vertex 
  scarcely 
  longer 
  on 
  the 
  middle 
  than 
  at 
  

  

  '5.3 
  54 
  ./ 
  o 
  

  

  Figs. 
  53 
  and 
  ol-face, 
  and 
  ver- 
  the 
  sidcs. 
  Prouotuiu 
  twicc 
  as 
  wide 
  as 
  long, 
  

   TEX 
  AND 
  PRONOTUM 
  OF 
  EMPOASCA 
  frout 
  luarglu 
  broadly 
  rounded, 
  hind 
  margin 
  

   decidedly 
  concave, 
  posterior 
  angles 
  broadly 
  

   rounded, 
  sides 
  rather 
  short, 
  without 
  distinct 
  sculpturing 
  but 
  with 
  two 
  

   small 
  pits 
  near 
  the 
  median 
  line, 
  one-fourth 
  of 
  the 
  distance 
  back 
  from 
  

   the 
  anterior 
  margin. 
  Scutellum 
  broader 
  than 
  long, 
  transverse 
  groove 
  

   black. 
  Last 
  ventral 
  segment 
  with 
  the 
  hind 
  margin 
  deeply 
  and 
  broadly 
  

   notched, 
  posterior 
  angles 
  rounded. 
  Color 
  steel 
  blue, 
  varied 
  with 
  

   smoky 
  and 
  orange; 
  head 
  pale 
  orange, 
  genae 
  and 
  a 
  large 
  triangular 
  

   mark 
  on 
  front 
  extending 
  onto 
  and 
  across 
  vertex 
  medially, 
  ivory 
  white; 
  

   disk 
  of 
  vertex 
  with 
  a 
  black 
  median 
  line 
  on 
  posterior 
  two-thirds; 
  ocelli 
  

   rnfous 
  and 
  distant 
  from 
  the 
  eyes; 
  pronotum 
  pale 
  blue, 
  washed 
  with 
  

   white 
  and 
  pale 
  orange 
  on 
  anterior 
  and 
  lateral 
  margins; 
  scutellum 
  

   orange 
  with 
  whitish 
  mottling; 
  elytra 
  subhyaline, 
  smoky 
  at 
  base 
  across 
  

   median 
  i)ortion, 
  and 
  at 
  tip, 
  forming 
  three 
  broad 
  indistinct 
  transverse 
  

   bands, 
  clavus 
  and 
  corium 
  posteriorly, 
  each 
  with 
  a 
  pale 
  orange 
  stripe, 
  

  

  