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 that  which  is  caufed  by  the  hands  in  endeavouring  to  take  it;  fmce it  inftantly  takes  to  flight,  
 anddifappears;  hence  it  happened  that  I  was  fome  confiderable  time  before  I  could  colled  
 Efficient  fpecimens.  The  female  collects  her  eggs  into  a  thick  round  bag,  of  a  greyiOi  
 colour,  the  fize  of  which  is  reprefented  by  the  ring,  at  fig.  i.  This  bag  is  not  faftened  
 to  the  fexual  organ,  as  in  other  females  of  this  divifion,  but  is  entirely  feparate,  and  kept  
 clofe  to  the  thorax,  by  means  of  the  arms.  It  is  however  no  hinderance  in  running,  the  
 length  of  her  legs  preventing  it  from  ftriking  againft  any  obftacles  in  her  way.  The  follicle,  
 or  egg-bag,  is  preferved  with  as  much  care  as  her  life:  I  never  faw  her  hunting  after  food  
 whiltme  carries  it:  it  contains  about  150  eggs.  The  young  come  out  at  the  end  of  July  ;  
 t h e y  have  dark  thoraxes,  with  a  lucid  longitudinal  line ;  and  their  abdomens  are  dark,  with  
 t h r e e  fmall  lucid  rays  towards  the  thorax:  their  legs  are  whitifli,  with  confpicuous  prickles  
 on  them.  The  young  run  about  in  the  nefts,  and  do  not  adhere  to  the  back  of  the  mother.  
 as  moft  others  of  this  divifion  do.  
 H A V I N G  often  feen  thefe  Spiders catch  flies  upon  the  wing  with  great  fwiftnefs,  I  doubted  
 whether  they  made  any  webs  ;  but  having  kept  a  male  feveral  days  without  food,  I  found  
 him  weaving  a  web  of  a  particular  form.  He  faftened  a  little  net  to  the  fide  of  the  place  
 where  he  was  confined,  in  form  of  a  bag,  whereof  the  circumference  of  the  aperture  exceeded  
 the height  about  ten  times:  acrofs  the  aperture  ran  in  a  confufed  manner  fome  thick  threads  :  
 the  bag  was  placed  in  a  plane  nearly  oppofite  to  the  air,  was  narrower  towards  the  bottom.  
 and  ended  in  flue.  The  Spider did  not  live  in  this  web.  but  walked  at  large  about  the  fides  
 of  the  place  where  he  was.  feizing  on  the  flies,  both  on  the  wing,  and  entangled  m  the  
 web.  
 CHAPTER  VI.  
 Si'--'  
 Ï;  .!  
 (  S3  )  
 C H A P T E R  VI.  
 OF  THE  SECOND  KIND,  OR  DIVISION  OF  LEAPERS,  OR  
 PHALANGIA.  
 I-  I  HAVE  placed  the  Phalangia  hdore  the  Cancriformes,  becaufe  they  are  more  numerous  
 and  more  regular.  
 2.  THE  only  certain  charafter of  this divifion is  the  fituation  of  the  eyes  in  a parabola.  Thofe  
 in  front  are  the  largeft;  next  come  the  fecond,  fomewhat  lefs ;  the  third  pair  is  the  fmalleft  j  
 and  the  hindmoft  pair  are  rather  lefs  than  the  fecond.  See the figures.  
 3 .  THERE  is  no  certain  rule  for  the  length;  fee  the  lines  in  the  figures,  wherein  the  firft  
 gives  the  length  of  the  fore  legs,  and  the  lafl: that  of  the  hind  ones.  
 4 .  THESE  Spiders  have  the  power  of  bending  the  thorax  very  much,  and  very  eafily  to  
 either  fide,  which  thofe  of  the  other  divifions  cannot  do.  They  leap  frequently  with  great  
 lightnefs,  like  fleas  or  grafshoppers.  Mofl: of  them  draw  a  thread  after  them,  and which  they  
 can  fix  either  to  themfelves  or  to  any thing  elfe,  or  lengthen  or  fliorten  at  pleafure  with  wonderful  
 facility.  
 S P E C I E S  I.—A.  HASTATUS.  
 H A L B E R D - S P I D E R .  
 F R O M  the middle  of  July  to the height  of  autumn,  thefe  are  found  fitting  on  the  branches  of  
 the  Scotch  fir  (Pinusfylveflris,  Lin.)  firft  watching  their  eggs,  and  afterwards  their  young.  
 They  are  feated  amongft  threads  or  flue  pretty  nearly  or  clofely  placed.  Plate  8.  fig.  7.  
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