﻿NO. 
  1124. 
  BE 
  r 
  IS 
  ION 
  OF 
  THE 
  ME 
  LA 
  NOPLI—SC 
  UDDER. 
  121 
  

  

  is 
  more 
  or 
  less, 
  generally 
  slightly, 
  convex, 
  is 
  rarely 
  at 
  all 
  flaring 
  in 
  

   front 
  or 
  only 
  in 
  tlie 
  very 
  slightest 
  degree, 
  at 
  most 
  faintly 
  pnnctate 
  and 
  

   generally 
  distinctly 
  longer 
  than 
  the 
  metazona; 
  front 
  margin 
  generally 
  

   truncate 
  or 
  snbtruncate, 
  hind 
  margin 
  obtusangnlate 
  to 
  a 
  greater 
  or 
  less 
  

   degree, 
  rarely 
  subtrancate; 
  median 
  carina 
  always 
  distinct 
  on 
  the 
  meta- 
  

   zona, 
  generally 
  much 
  less 
  so 
  on 
  the 
  prozona, 
  often 
  subobsolete 
  between 
  

   the 
  sulci 
  and 
  never 
  wholly 
  wanting; 
  lateral 
  carinae 
  typically 
  obsolete, 
  

   but 
  often 
  indicated 
  by 
  a 
  distinctly 
  abrupt 
  though 
  rounded 
  shoulder, 
  

   rarely 
  becoming 
  carinate; 
  lateral 
  lobes 
  vertical 
  or 
  subvertical, 
  es])e- 
  

   cially 
  below, 
  often 
  feebly 
  tumid 
  above 
  on 
  the 
  prozona, 
  and 
  generally 
  

   marked 
  by 
  a 
  piceous 
  postocular 
  band, 
  crossing 
  either 
  the 
  prozona 
  alone 
  

   or 
  the 
  whole 
  pronotum,uot 
  infrequently 
  broken 
  or 
  maculate. 
  Proster- 
  

   nal 
  spine 
  variable, 
  but 
  always 
  prominent; 
  meso- 
  and 
  metastethia 
  to- 
  

   gether 
  distinctly 
  longer 
  than 
  broad 
  in 
  both 
  sexes; 
  interspace 
  between 
  

   mesosternal 
  lobes 
  generally 
  longer 
  or 
  much 
  longer 
  than 
  broad, 
  never 
  ^ 
  

   in 
  the 
  least 
  broader 
  than 
  long, 
  even 
  when 
  the 
  sides 
  of 
  the 
  interspace 
  

   are 
  very 
  divergent 
  posteriorly 
  (male) 
  ov 
  generally 
  quadrate 
  but 
  more 
  

   variable 
  than 
  in 
  the 
  other 
  sex, 
  sometimes 
  as 
  narrow 
  as 
  there 
  but 
  more 
  

   frequently 
  subtransverse, 
  occasionally 
  in 
  brachyjjterous 
  forms 
  dis- 
  

   tinctly 
  transverse, 
  as 
  a 
  general 
  rule 
  wider 
  than 
  in 
  the 
  other 
  sex 
  (female), 
  

   in 
  both 
  always 
  distinctly, 
  generally 
  much, 
  narrower 
  than 
  the 
  lobes 
  them- 
  

   selves, 
  except 
  in 
  the 
  few 
  instances'- 
  where 
  it 
  is 
  distinctly 
  transverse 
  in 
  

   the 
  female; 
  metasternal 
  lobes 
  generally 
  attiugent 
  or 
  subattingent, 
  

   rarely 
  only 
  approximate 
  (male), 
  or 
  generally 
  approximate 
  or 
  subap- 
  

   proximate, 
  the 
  interspace 
  between 
  them 
  generally 
  narrower 
  than 
  the 
  

   frontal 
  costa 
  (female); 
  metasternum 
  rapidly 
  narrowing 
  posteriorly, 
  so 
  

   that 
  the 
  portion 
  behind 
  the 
  lobes 
  is 
  not, 
  or 
  is 
  hardly 
  more 
  than, 
  half 
  

   the 
  greatest 
  width 
  of 
  the 
  metasternum, 
  but 
  is 
  more 
  than 
  twice 
  as 
  broad 
  

   as 
  long. 
  Tegmina 
  always 
  present, 
  but 
  either 
  abbreviate 
  and 
  then 
  

   lateral, 
  attingent, 
  or 
  overlapping, 
  sometimes 
  shorter 
  and 
  sometimes 
  

   longer 
  than, 
  but 
  generally 
  nearly 
  the 
  length 
  of, 
  the 
  pronotum 
  and 
  usually 
  

   more 
  or 
  less 
  acumiuate 
  apically; 
  or 
  they 
  are 
  fully 
  develoi)ed 
  and 
  then 
  

   usually 
  about 
  attain 
  or 
  a 
  little 
  surpass 
  the 
  tii)s 
  of 
  the 
  hind 
  femora, 
  

   tapering 
  more 
  or 
  less 
  but 
  very 
  gradually 
  and 
  apically 
  well 
  rounded, 
  at 
  

   a 
  distance 
  from 
  the 
  apex 
  equal 
  to 
  the 
  breadth 
  of 
  the 
  tegmina 
  dis- 
  

   tinctly 
  narrower 
  than 
  the 
  metazona, 
  the 
  intercalaries 
  and 
  cross-veins 
  

   of 
  the 
  discoidal 
  area 
  (except 
  in 
  the 
  macropterous 
  forms 
  of 
  the 
  dimor- 
  

   phic 
  species, 
  iir. 
  dawsoni 
  and 
  21. 
  margi)iatus) 
  relatively 
  numerous 
  at 
  

   least 
  in 
  the 
  apical 
  fourth 
  and 
  usually 
  throughout, 
  the 
  venation 
  in 
  gen- 
  

   eral 
  sharp 
  and 
  clearly 
  defined, 
  the 
  humeral 
  vein 
  straight 
  and 
  only 
  api- 
  

   cally 
  arcuate, 
  nearly 
  always 
  terminating 
  either 
  on 
  the 
  apical 
  margin 
  

   or 
  only 
  a 
  short 
  distance 
  before 
  it, 
  running 
  for 
  some 
  distance 
  almost 
  

   exactly 
  parallel 
  to 
  the 
  costal 
  margin 
  or 
  merging 
  insensibly 
  into 
  it, 
  the 
  

  

  I 
  In 
  two 
  species, 
  M. 
  monianus 
  aud 
  M. 
  horealis, 
  it 
  is 
  feebly 
  transverse, 
  but 
  much 
  

   narrower 
  than 
  the 
  lobes, 
  aud 
  is 
  similar 
  in 
  the 
  two 
  sexes. 
  

   -These 
  are 
  M, 
  artemisiae, 
  M. 
  )iulilaris, 
  and 
  11. 
  aHiindiniim. 
  

  

  