3i3 
to  have  become  acclimated  in  California,  at  least  so  far  as  I know 
data  in  regard  to  them  are  up  to  now  not  available. 
In  Hawaii  on  the  other  hand  Coelophora  inaequalis  also  intro- 
duced by  Koebele  has  given  excellent  results.  It  has  propagated 
there  rapidly,  and  wherever  aphids  appear,  it  does  its  beneficial 
work.  I have  been  able  to  see  for  myself  in  a garden  a small  bed 
of  beans  infected  by  Aphis  papaveris  with  numerous  individuals 
of  that  species,  Platyomus  lividigaster,  and  some  Scymmus  note- 
scens,  all  intent  upon  the  work  of  destruction.  D'r.  Perkins  told 
me  that  of  all  the  coccinellids  introduced,  he  believes  that  in  the 
Hawaiian  Islands  those  which  proved  most  useful  were  inaequalis 
and  Cryptolaemus  montrouzieri. 
Inaequalis  eats  many  species  of  aphids  and  also  young  larvae 
of  Perkinsiella  sac  char icida\,  Kirkl.  Platyomus  lividigaster  is  more 
common  now  in  Hawaii  than  in  Australia,  its  original  home. 
More  recently  Koebele  introduced  also  Coelophora  pupillata, 
Schoen.,  which  has  become  acclimated  there,  feeding  on  Aphids 
and  Aleurodes. 
Of  V crania  frenata  and  V.  lineola > also  introduced  in  Hawaii, 
no  specimens  have  been  observed  at  liberty. 
In  1905  Craw  introduced  from  California  Hippodamia  amhigua, 
H.  convergens,  Coccinella  calif  ornica,  but  no  news  of  their  ac- 
climatization has  been  heard.  While  American  entomologists 
made  efforts  to  obtain  insect  parasites  from  Australia,  they  sent 
on  their  part,  with  their  well  known  generosity,  American 
species  to  New  Zealand,  among  them  Cycloneda  san guinea  and 
Hippodamia  convergens  to  fight  Schizoneura  lanigera,  but  the  re- 
sults of  this  introduction  are  not  known. 
Compere  has  introduced  in  West  Australia  several  species  of 
aphis,  eaters,  one  of  which  seems  to  have  succeeded  very 
well  in  fighting  Aphis  hrassicae,  L. 
I have  tried  repeatedly  to  introduce  Platyomus  and  Coelophora 
from  Hawaii,  but  unfortunately  I have  not  succeeded  so  far  be- 
cause the  specimens  arrived  always  dead. 
ALEURODIDAE. 
One  species  of  Aleurodes  was  very  common  in  Hawaii  on  coffee 
plants  and  very  harmful,  but  has  now  become  so  scarce  that 
Kotinsky  in  1907  could  not  find  specimens  for  description.  This 
extraordinary  diminution  is  attributed  to  various  parasites  intro- 
duced by  Koebele,  but  their  names  are  not  known. 
PERKINSIELLA  SACCHARICIDA,  KIRKL. 
We  have  seen  what  excellent  results  in  fighting  Icerva  have 
been  obtained  everywhere,  with  the  introduction  of  Novius  cardi- 
nalis,  how  efficacious  has  proved  Cryptolaemus  montrouzieri , es- 
pecially in  the  Hawaiian  Islands  in  checking  the  development  of 
