122 
of  the  female  (and  probably  those  of  the 
male)  have  a  diagonal  brick-red  streak  during 
life.  Near  the  apex  of  the  dorsal  ridge,  found 
on  the  third  antennal  segment  of  the  female, 
there  is  a  small  but  deep  pit  which  is  pro¬ 
bably  a  sense  organ  and  is  wanting  in  the 
other  sex. 
This  species  covers  a  large  ground  and 
is  found  even  in  Mexico.  The  larvae  live  in 
Holochilus  vulpinus  LICHT.  and  probably  in 
other  american  Muridue.  I  have  specimens 
from  the  states  of  Espirito  Santo,  Rio  de  Ja¬ 
neiro,  São  Paulo  and  Santa  Catharina. 
2.  Cuterebra  rufiventris  MACQUART. 
(Dipt.  exot.  Suite, 3e.  Subdiv. ,  p.  21  (178) 
1843). 
Original  description: 
“Thorace  nigro.  Abdomine  rufo.  (PI.  2( 
fig.  4). 
Long.  9  /.  cT  Face  à  duvet  et  poils  d’un 
jaune  blanchâtre;  une  petite  tache  arrondie, 
noire,  nue,  luisante,  pointillée  de  chaque  côté 
des  joues,  près  du  bord  des  yeux  ;  espace 
concave  nu,  à  reflets  blancs.  Front  mat,  à  pe¬ 
tits  poils  noirs;  un  espace  antérieur  à  petits 
poils  jaunâtres;  un  autre  espace,  alongé,  tri¬ 
angulaire,  en  avant  des  ocelles,  d’un  noir 
luisant;  deux  autres  espaces  arrondis,  luisans, 
à  petits  poils  noirs  de  chaque  côté,  au 
bord  des  yeux  ;  l’un,  fort  pointillé,  à 
la  hauteur  de  l’insertion  des  antennes; 
l’autre,  peu  pointillé,  un  peu  plus  bas. 
Antennes  d’un  Drum  noirâtre;  les  deux 
premiers  articles  à  petits  poils  jaunâtres  ; 
style  à  moitié  antérieure  noire,  postérieure 
testacée,  ainsi  que  les  cils.  Yeux  bruns. 
Thorax  d’un  noir  mat;  deux  bandes  nues 
un  peu  grisâtres,  peu  distinctes  au  bord  anty- 
rieur,  ne  dypassant  pas  la  suture;  côtys  et 
poitrine  à  duvet  jaunâtre;  une  tache,  oblon- 
gue  de  duvet  noir  en  avant  de  l’insertion  des 
ailes,  et  un  peu  de  duvet  noir  en  avant  de 
cette  tache;  ycusson  nu  et  testacy  en-dessous. 
Abdomen  couvert  d’un  ypais  duvet  ;  premier 
segment  noir,  à  bord  postyrieur  fauve;  deux¬ 
ième  et  troisième  d’un  fauve  rougeâtre, 
quatrième  d’un  fauve  jaunâtre.  Pieds  noirs  ; 
cuisses  testacées  au  côty  intyrieur;  pelottes 
jaunâtres.  Cuillerons  bruns,  bordvs  de  testa¬ 
cy.  Ailes  brunes,  noirâtres  à  la  base  et  au 
bord  extyrieur. 
Du  Brésil,  aux  environs  de  Pará”. 
Austen  believes  that  the  specimen  des¬ 
cribed  by  MACQUART  is  a  male  and  gives 
a  long  description  of  a  female  from  Ecuador, 
from  CLARENCE  BUCKLEY’s  collection. 
1  give  its  dimensions  only:  Length  23,  5  mm.; 
width  of  vertex  3  2/3;  of  head  9  1/3;  of  tho¬ 
rax  at  the  base  of  the  wings  9;  of  abdomen 
(2d  segm.)  11,5  mm.  Lenglh  of  thorax,  with 
scutellum  11,5  mm;  (a  black  and  white  illus¬ 
tration). 
3.  Cuterebra  nigricincta  AUSTEN. 
Austen  also  gives  a  detailed  and  illus¬ 
trated  description  of  a  new  species,  one  spe¬ 
cimen  of  which  was  found  by  BATES  in 
Pará. 
Unless  the  female  be  different,  the 
species  is  easily  recognised.  Consequently 
I  shall  only  give  its  diagnosis  and  its  dimen¬ 
sions  : 
“c?  Length  19,5  mm,;  width  of  vertex 
3  mm.;  width  of  head  8  mm.;  width  of 
thorax  (at  base  of  the  wings)  8  2/3  mm.; 
width  of  abdomen  (second  segment)  10  mm., 
length  of  wing  16,5  mm. 
Black;  dorsum  of  the  thorax,  except  a 
small  area  on  the  anterior  margin,  clothed 
with  black  pile;  central  portion  of  the  pleu¬ 
rae  also  clothed  with  black  pile;  abdomen 
metallic  brassy  green,  shining,  thickly  clothed 
with  siiky  golden-yellow  pile,  with  a  conspi¬ 
cuous  band  of  black  pile  on  the  posterior 
margin  of  the  third  segment,  the  base  also 
clothed  with  black  pile.” 
4.  Cuterebra  infulata  n.  sp. 
(PI.  27,  fig.  4.  PI.  29,  fig.  4  (Face  ). 
In  this  species,  (shown  in  figure  4)  all  the 
lighter  parts  are  covered  with  reddish  yellow 
hairs.  This  applies  to  the  face,  the  lateral 
edges  of  scutum  and  scutellum,  where  there 
is  a  band  of  long  hairs,  the  whole  ventral 
aspect,  the  inside  of  the  tibiae  and  a  large 
