465 
The  writer  has  already  traced  out  the  life-cycle  of  this  insect ; "  but 
some  observations  which  were  made  m  Jamaica  may  not  be  without 
interest  as  bearing  upon  the  economy  of  the  species.  Larvae  were 
found  at  Stony  Hill,  St.  Andrew,  in  the  month  of  January.  They 
were  feeding,  m  small  numbers,  on  fermenting  stable  refuse,  but  in 
such  portions  of  it  only  as  contained  an  excess  of  green  fodder.  The 
fully  matured  ones  had  crawled  several  feet  away  from  the  refuse 
and  pupated  in  the  soil  an  inch  or  so  below  the  surface.  Several  had 
congregated  together  at  the  foot  of  a  tree  growing  hard  by;  and 
many  pupae  were  found  in  the  bifurcations  of  the  main  roots  close 
up  to  the  trunk  of  the  tree.  Flies  were  bred  from  some  of  the  pupae, 
so  that  there  can  be  no  doubt  as  to  the  identity  of  the  species. 
SMALL  YELLOW  HORSE  FLY 
Ckrysofs  coslaL?s,  Fab.  (=  C.  aniazouicus  Rond.) 
Representatives  of  the  Tabanid  group  of  blood-sucking  flies  were 
not  only  very  scarce  but  also  extremely  local  m  their  distribution. 
This  was  markedly  so,  at  any  rate,  during  the  months  of  December 
and  January.  This  Chrysops  was  seen  in  small  numbers  in  the  Port 
Henderson  swamps  ;  and  all  the  specimens  which  w'ere  taken  by  the 
writer  were  captured  by  him  as  they  settled  upon  a  native  driver. 
They  did  not  attack  the  mule  which  was  being  driven  through  this 
little  fly  belt ;  but  they  evidently  attack  horses,  as  two  examples 
which  were  presented  to  the  School  by  Dr.  Tiirton  were  captured  by 
him  while  in  the  act  of  sucking  blood  from  his  horse.  It  produces 
little  or  no  noise  when  flying ;  and  it  settles  so  quietly  as  to  be 
scarcely  felt. 
A  NEW  BLOOD-SUCKING  TABANID 
Atylotus  jamaicensis,  n.  sp.  (Newstead) 
Thorax  grey  ;  abdomen  pale  brown  ;  wings  faintly  speckled. 
Head.  Face  white,  pubescence  white,  beard  white.  Palpi 
creamy  white,  with  mixed  black  and  white  hairs,  the  latter  prepon¬ 
derating,  the  former  forming  a  faint  black  tip.  Forehead  dull  bronz) 
*  Journ.  Econ.  Biol.,  Vol.  I,  1906,  pp.  157-166,  pi.  XII. 
Reprinted  Ann.  Trop.  Med.  and  Parisit.,  Vol.  I,  pp.  P^-  ^4  i9°7- 
