﻿164 
  Thirtieth 
  Report 
  ox 
  the 
  State 
  Museum. 
  [52] 
  

  

  VI. 
  OX 
  SOME 
  LEPIDOPTERA 
  COMMON 
  TO 
  THE 
  UNITED 
  STATES 
  

  

  AND 
  PATAGONIA. 
  

  

  In 
  the 
  Bulletin 
  de 
  la 
  Societe 
  Impcriale 
  cles 
  A'aturalistes 
  de 
  

   Mbscou, 
  for 
  1875 
  (Vol. 
  49. 
  Pt. 
  2d. 
  pp. 
  191-247). 
  an 
  interesting 
  

   paper 
  is 
  published 
  by 
  Prof. 
  C. 
  Berg, 
  Director 
  of 
  the 
  Museum 
  

   of 
  Natural 
  History 
  of 
  Buenos 
  Ayres, 
  on 
  u 
  Patagonian 
  Lepi- 
  

   doptera." 
  It 
  is 
  based 
  on 
  collections 
  made 
  by 
  the 
  writer, 
  

   in 
  Patagonia, 
  during 
  a 
  short 
  visit 
  in 
  the 
  year 
  1874. 
  The 
  col- 
  

   lections 
  were 
  confined 
  to 
  the 
  coast 
  region, 
  extending 
  from 
  the 
  

   Rio 
  Xegro 
  to 
  the 
  Rio 
  Santa 
  Cruz, 
  or 
  between 
  41 
  and 
  50 
  degrees 
  

   of 
  south 
  latitude. 
  The 
  insect-fauna 
  was 
  found 
  to 
  be 
  quite 
  

   limited, 
  as 
  might 
  be 
  expected 
  from 
  the 
  scanty 
  vegetation 
  of 
  

   the 
  coast. 
  Could 
  the 
  interior 
  country 
  have 
  been 
  explored, 
  it 
  

   would, 
  no 
  doubt, 
  have 
  yielded 
  much 
  more 
  abundantly. 
  

  

  Previous 
  to 
  this 
  visit, 
  but 
  four 
  or 
  five 
  species 
  of 
  Patagonian 
  

   Lepidoptera 
  were 
  known. 
  Fifty-six 
  species 
  were 
  collected 
  by 
  

   Prof. 
  Berg, 
  at 
  this 
  time, 
  of 
  which 
  twenty 
  are 
  described 
  in 
  his 
  

   paper 
  as 
  new 
  to 
  science. 
  Of 
  these 
  fifty- 
  six 
  species, 
  nineteen 
  

   were 
  observed 
  only 
  in 
  Patagonia, 
  — 
  the 
  others 
  had 
  also 
  been 
  

   collected 
  in 
  the 
  countries 
  adjacent. 
  The 
  interesting 
  statement 
  

   is 
  made 
  that 
  Agrotis 
  ypsilon, 
  Heliothis 
  armiger 
  and 
  Asopia 
  

   farinalis 
  — 
  species 
  of 
  extensive 
  distribution 
  throughout 
  

   Europe 
  and 
  America 
  — 
  were 
  apparently 
  confined 
  to 
  those 
  sec- 
  

   tions 
  of 
  the 
  coast 
  to 
  which 
  cultivation 
  had 
  extended, 
  and, 
  

   therefore, 
  it 
  was 
  inferred 
  that 
  they 
  had. 
  in 
  all 
  probability, 
  

   been 
  introduced 
  through 
  commercial 
  intercourse 
  with 
  other 
  

   countries. 
  

  

  The 
  collections 
  were 
  of 
  the 
  following 
  groups 
  : 
  Of 
  Rhopalo- 
  

   cera, 
  14 
  species. 
  Of 
  Heterocera 
  — 
  Sphingida3 
  3 
  sp.: 
  Bombycida? 
  

   5 
  sp. 
  ; 
  Xoctuidae 
  11 
  sp. 
  ; 
  Geometridse 
  1 
  sp. 
  ; 
  Pyralidae 
  6 
  sp. 
  : 
  

   Chilonidye 
  1 
  sp. 
  ; 
  Phycidae 
  4 
  sp. 
  ; 
  Tortricidse 
  1 
  sp. 
  ; 
  Tineidse 
  8 
  

   sp. 
  ; 
  Pterophoridse 
  1 
  sp. 
  

  

  A 
  special 
  interest 
  attaches 
  to 
  the 
  record 
  of 
  the 
  above 
  collec- 
  

   tion 
  from 
  the 
  occurrence 
  among 
  them, 
  in 
  this 
  remote 
  region' 
  

   of 
  so 
  large 
  a 
  number 
  of 
  species 
  belonging 
  to 
  the 
  United 
  

   States 
  — 
  no 
  less 
  than 
  seventeen 
  species, 
  or 
  over 
  thirty 
  per 
  

   cent 
  of 
  the 
  entire 
  number. 
  

  

  

  