120 - 
14.  Rogenhofera  grandis  GUÉR.  1829-38  ?  Brazil,  Argentina. 
15.  «  trígono cephala  BR.  1863.  Brazil,  State  of  Bahia. 
16.  «  dasypoda  BR.  1896.  Brazil,  State  of  Espirito  Santo. 
17.  Pseudogametes  Hermanni  BR.  &  BISCH.  1900,  Brazil. 
18-  «  semiater  W1ED.  1830.  Brazil,  State  of  Rio  de  Janeiro. 
19.  Dermatobia  cyaniventrís  MACQ.  1843.  Brazil. 
20.  Gastrophilus  asininas  BR.  1863.  Brazil  (introduced). 
Of  the  species  mentioned,  C.  analis 
MACQ.  is  the  same  as  C.  apicalis  GUÉR.  ; 
this  may  be  readily  seen  by  the  good  drawing 
which  accompanies  this  author's  description. 
If  the  specimen  described  by  LATR.  as  ephip- 
piam  had  lost  the  hairs  on  the  scutum,  the 
same  may  apply  to  it.  This  form  has  not 
been  found  in  Brazil,  nor  has  patagona 
GUÉR.  been  seen.  C.  cayennensis  MACQ.  and 
funebris  AUST.  do  not  seem  to  be  nati¬ 
ves;  the  first  ist  not  easily  distinguished 
from  apicalis  ;  the  home  of  megastoma  BR. 
is  uncertain.  Consequently  we  must  consider 
only  the  following  three  species  of  Cuterebra 
as  natives  :  C.  apicalis  GUÉR. ,  C.  rufi  ven  tris 
MACQ.  and  C.  nigrocincta  AUSTEN. 
I  have  no  specimens  of  the  two  last 
ones  ;  they  must  be  rare  and  probably  belong 
to  a  very  limited  region  as  they  have  apparently 
not  been  found  since.  On  the  other  hand,  1 
have  four  new  species  to  describe.  Adding 
two  species  of  Rogenhofera,  two  of  Pseu¬ 
do  game  tes  and  one  of  Dermatobia  to  these,  we 
have  twelve  native  species.  There  is  also  a 
Gastrophilus  but  it  is  undoubtedly  of  foreign 
origin. 
I  will  now  proceed  to  describe  the 
different  genera  and  species,  leaving  my  re¬ 
marks  on  their  morphology  and  biology,  for 
the  second  part  of  the  paper. 
Descriptive  Part. 
I.  Genus  Cuterebra. 
This  genus  is  exclusively  american  and 
its  many  species  cover  the  entire  continent. 
The  North-american  type  is  rather  different 
from  that  of  the  brazilian  species,  to  which  this 
paper  is  limited.  One  of  them  is  rela¬ 
tively  common  in  this  country  and  can  be 
found  in  many  places  ;  the  others  are  rarer 
and  limited  to  more  restricted  zones.  Much 
time  and  many  collaborators  are  needed  to 
collect  the  necessary  material  for  a  study  on 
;  Cuterebra.  My  collection  looks  small  and  yet 
!  it  is  probably  the  richest  in  native  species. 
I  Although  it  is  now  many  years  old, 
there  seems  small  likelihood  of  its  increasing, 
so  I  shall  not  delay  the  study  of  the  speci¬ 
mens  any  longer. 
BRAUER  gave  a  very  minute  descrip¬ 
tion  of  Cuterebra ,  the  most  important  parts  of 
which  may  be  found  in  BAU  from  whom  I 
;  quote  : 
“Characters:  Head  large,  generally 
I  broader  than  the  thorax,  hemispherical,  roun¬ 
ded,  and  convex.  Vertex  slightly  or  not  at  all 
prominent,  flat  behind,  with  well  marked 
edge.  Antennal  groove  excavated,  heart-sha¬ 
ped  ;  either  single  or  divided  by  a  central 
rather  prominent  ridge. 
Antennae  aproxímate  at  the  base,  droop¬ 
ing,  the  two  first  segments  short,  the  third 
;  short  or  elongate,  oval.  Arista  at  base  of 
I  the  anterior  border;  upper  side  pennate. 
J  Mouth  forming  a  deep  and  long  fissure  on 
the  under  side  of  the  head. 
Proboscis  large,  corneous,  generally  re¬ 
tracted,  geniculated  at  the  base,  the  terminal 
part  compressed  and  of  the  same  length  as 
the  oral  fissure. 
Under  face  very  much  swollen,  not  ex¬ 
cavated  under  the  eyes.  There  are  shining 
black  calli  on  the  head,  which  are  someti¬ 
mes  smooth,  sometimes  wrinkled.  Scutum  al¬ 
most  square,  or  longer  than  broad. 
Wings  dark  but  diaphanous,  with  trans¬ 
versal  apical  vein.  First  posterior  marginal 
cell  open.  Anal  lobes  large,  mostly  darker 
then  the  rest  of  the  wing  membrane,  erect 
on  the  side  of  the  scutellum.  Squamulae 
very  'arge. 
