﻿ACADEMY 
  OF 
  SCIENCES. 
  161 
  

  

  Academy's 
  museum, 
  and 
  had 
  been 
  recognized 
  by 
  Capt. 
  Scammon 
  

   as 
  being 
  the 
  back 
  portion 
  of 
  the 
  skull 
  of 
  a 
  hump-back 
  Whale 
  ; 
  it 
  

   weighs 
  850 
  pounds. 
  

  

  Mr. 
  Durand 
  submitted 
  a 
  statement 
  of 
  daily 
  thermometrical 
  read- 
  

   ings 
  at 
  Camp 
  Cady, 
  Cal., 
  from 
  and 
  including 
  May 
  25th 
  to 
  October 
  

   1st, 
  1872, 
  showing 
  the 
  mean 
  temperature 
  for 
  June 
  to 
  have 
  been 
  

   101.5 
  ; 
  July, 
  104.9 
  ; 
  August, 
  105.1 
  ; 
  September, 
  96.1 
  (Fahr.) 
  ; 
  

   the 
  minimum 
  being 
  80°, 
  and 
  the 
  maximum 
  reaching 
  111°. 
  Camp 
  

   Cady 
  is 
  on 
  the 
  Mohave 
  River, 
  in 
  lat. 
  35 
  deg. 
  N., 
  long. 
  116 
  J 
  

   deg. 
  W. 
  

  

  Pacific 
  Coast 
  Lepidoptera.— 
  No. 
  2. 
  On 
  the 
  Transformation 
  of 
  

  

  the 
  Diurnal 
  Lepidoptera 
  of 
  California 
  and 
  the 
  adjacent 
  

  

  Districts. 
  

  

  BY 
  HENRY 
  EDWARDS. 
  

  

  In 
  the 
  hope 
  of 
  calling 
  the 
  attention 
  of 
  observers 
  to 
  the 
  earlier 
  stages 
  of 
  our 
  

   butterflies, 
  I 
  have 
  compiled 
  from 
  my 
  own 
  researches 
  and 
  from 
  the 
  best 
  pub- 
  

   lished 
  material 
  at 
  my 
  command, 
  descriptions 
  of 
  all 
  the 
  larvse 
  and 
  chrysalides 
  of 
  

   species 
  belonging 
  to 
  the 
  Pacific 
  Coast, 
  with 
  -which 
  entomologists 
  are 
  at 
  present 
  

   acquainted. 
  It 
  is 
  to 
  be 
  regretted 
  that 
  the 
  list 
  is 
  so 
  small, 
  and 
  that 
  so 
  little 
  at- 
  

   tention 
  has 
  hitherto 
  been 
  given 
  to 
  this 
  interesting 
  branch 
  of 
  study 
  ; 
  out 
  of 
  

   200 
  species 
  of 
  diurnal 
  Lepidoptera 
  inhabiting 
  the 
  Coast, 
  only 
  about 
  20 
  being 
  

   known 
  in 
  the 
  larval 
  condition, 
  and 
  these 
  being 
  for 
  the 
  most 
  part 
  very 
  briefly 
  

   and 
  imperfectly 
  described. 
  Thus, 
  no 
  species 
  of 
  either 
  Pieris, 
  Anthocaris, 
  Ar- 
  

   gynnis, 
  T/iecla, 
  Lycana, 
  Satyrus, 
  or 
  of 
  any 
  of 
  the 
  numerous 
  forms 
  of 
  the 
  Hcs- 
  

   feridce,has 
  yet 
  been 
  noticed 
  in 
  its 
  earlier 
  stages, 
  and 
  the 
  caterpillar 
  of 
  our 
  com- 
  

   mon 
  swallow-tailed 
  butterfly 
  [Papilio 
  Rutulus), 
  so 
  abundant 
  in 
  every 
  canon 
  

   during 
  the 
  spring 
  and 
  summer, 
  is 
  as 
  yet 
  unregistered 
  and 
  undescribed. 
  The 
  

   importance 
  of 
  these 
  earlier 
  conditions 
  of 
  insect 
  life, 
  in 
  the 
  discrimination 
  of 
  

   closely 
  allied 
  species, 
  cannot 
  be 
  over-estimated, 
  and 
  it 
  will 
  be 
  seen 
  from 
  the 
  

   poverty 
  of 
  our 
  present 
  knowledge 
  how 
  large 
  a 
  field 
  of 
  interesting 
  observation 
  is 
  

   open 
  to 
  the 
  entomological 
  student. 
  The 
  subjoiaed 
  descriptions 
  have 
  been, 
  in 
  

   most 
  cases, 
  drawn 
  up 
  by 
  myself 
  from 
  personal 
  investigation 
  of 
  each 
  species 
  ; 
  

   but 
  in 
  one 
  or 
  two 
  instances 
  I 
  have 
  availed 
  myself 
  of 
  the 
  labor 
  of 
  others, 
  for 
  

   which 
  due 
  credit 
  has 
  always 
  been 
  given. 
  A 
  few 
  species, 
  such 
  as 
  Vanessa 
  cati- 
  

   fornica, 
  Fyrameis 
  caryce, 
  T/iecla 
  californica, 
  and 
  T/iecla 
  irioides, 
  are 
  well 
  

   known 
  to 
  me, 
  but 
  I 
  must 
  defer 
  their 
  descriptions 
  until 
  some 
  future 
  day, 
  as 
  my 
  

   notes 
  upon 
  these 
  species 
  have 
  been 
  mislaid 
  or 
  lost. 
  In 
  the 
  Eastern 
  States, 
  the 
  

   transformations 
  of 
  Pieris 
  protodice 
  and 
  Colias 
  coesonia 
  are 
  well 
  known, 
  though 
  

   I 
  cannot 
  find 
  any 
  published 
  description 
  of 
  either 
  of 
  them 
  ; 
  while 
  my 
  friend 
  Mr. 
  

   T. 
  L. 
  Mead 
  of 
  New 
  York 
  was 
  fortunate 
  enough 
  to 
  raise 
  the 
  larvae 
  of 
  Pieris 
  

   Proc. 
  Cal. 
  Acad. 
  Sci., 
  Vol. 
  V.— 
  11. 
  Nov., 
  1873. 
  

  

  