﻿398 
  Mr. 
  C. 
  J. 
  Gahan 
  on 
  new 
  Lamiide 
  Coleoptera. 
  

  

  et 
  tibiis 
  anticis 
  mediisque 
  flavo-testaceis 
  ; 
  antenms 
  articulis 
  

   quatuor 
  basalibus 
  testaceis, 
  coeteris 
  fuscis. 
  

   Long. 
  11 
  mm. 
  

  

  Hob. 
  Ecuador. 
  

  

  Almost 
  bare 
  of 
  pubescence 
  ; 
  with 
  the 
  head, 
  thorax, 
  and 
  a 
  

   little 
  more 
  than 
  the 
  anterior 
  third 
  of 
  the 
  elytra 
  yellowish 
  

   testaceous 
  ; 
  the 
  abdomen 
  and 
  corresponding 
  (or 
  covering) 
  

   portion 
  of 
  the 
  elytra 
  black 
  and 
  glossy, 
  with 
  a 
  faint 
  greyish 
  

   pubescence 
  posteriorly. 
  Elytra 
  rather 
  closely 
  punctured 
  on 
  

   the 
  basal 
  half, 
  impunctate 
  on 
  the 
  posterior 
  half; 
  with 
  two 
  

   carinas 
  on 
  each 
  side, 
  the 
  lower 
  extending 
  further 
  back 
  than 
  

   the 
  upper 
  ; 
  the 
  apices 
  sinuately 
  truncate, 
  with 
  the 
  outer 
  angles 
  

   dentate, 
  the 
  sutural 
  angles 
  acute. 
  Legs 
  yellowish 
  testaceous, 
  

   with 
  the 
  posterior 
  tibite 
  and 
  the 
  first 
  and 
  fourth 
  joints 
  of 
  each 
  

   of 
  the 
  tarsi 
  black, 
  the 
  intermediate 
  joints 
  of 
  the 
  tarsi 
  reddish 
  

   brown. 
  

  

  Ampliionyclia 
  marginicollis, 
  n. 
  sp. 
  

  

  Brevis 
  ; 
  capite 
  nigro, 
  griseo-mutante 
  ; 
  prothorace 
  testaceo, 
  griseo- 
  

   pubescente, 
  dorso 
  antice 
  et 
  postice 
  nigro-marginato 
  ; 
  eljtris 
  nigris, 
  

   nitidis, 
  antice 
  punctatis, 
  singulisque 
  maculis 
  tribus 
  discoidalibus 
  

   (una 
  prope 
  basin, 
  una 
  mediana, 
  tertia 
  prope 
  apicem) 
  et 
  una 
  

   laterali 
  flavo-testaceis, 
  apicibus 
  conjunctim 
  rotundatis 
  ; 
  abdomine 
  

   testaceo, 
  griseo-albo 
  pubesccnte 
  ; 
  coxis 
  testaceis, 
  femoribus 
  stra- 
  

   rnineis, 
  tibiis 
  nigro-fuscis 
  ; 
  antennis 
  nigro-fuscis, 
  scapo 
  extus, 
  

   articulis 
  quarto 
  toto 
  et 
  tcrtio 
  apice 
  flavis. 
  

  

  Long. 
  8, 
  lat. 
  3 
  mm. 
  

  

  Hab. 
  Cayenne. 
  

  

  Head 
  black, 
  with 
  a 
  faint 
  silvery-grey 
  pubescence. 
  Pro- 
  

   thorax 
  testaceous, 
  with 
  a 
  pale 
  grey 
  pubescence, 
  punctured 
  ; 
  

   the 
  disk 
  with 
  a 
  naked 
  border 
  at 
  the 
  base 
  and 
  apex 
  black 
  and 
  

   shiny. 
  Elytra 
  glabrous, 
  black 
  and 
  shiny, 
  with 
  the 
  basal 
  

   half 
  punctured, 
  with 
  a 
  distinct 
  sinuous 
  carina 
  on 
  each 
  side, 
  

   each 
  with 
  four 
  yellowish-testaceous 
  spots, 
  one 
  near 
  the 
  base, 
  

   two 
  median, 
  of 
  which 
  one 
  is 
  above, 
  the 
  other 
  below 
  the 
  lateral 
  

   carina, 
  the 
  fourth 
  near 
  the 
  apex. 
  The 
  posterior 
  spots 
  with 
  a 
  

   pale 
  greyish 
  pubescence. 
  Hind 
  breast 
  black 
  ; 
  abdomen 
  

   (except 
  at 
  the 
  sides 
  of 
  the 
  two 
  basal 
  segments) 
  testaceous, 
  

   with 
  a 
  greyish-white 
  pubescence. 
  Antennas 
  black, 
  with 
  the 
  

   scape 
  on 
  the 
  underside, 
  the 
  fourth 
  joint, 
  and 
  the 
  apex 
  of 
  the 
  

   third 
  joint 
  pale 
  flavous 
  ; 
  the 
  ninth 
  joint 
  is 
  reddish 
  brown 
  and 
  

   the 
  last 
  two 
  joints, 
  which 
  in 
  the 
  single 
  specimen 
  are 
  broken 
  

   off, 
  are 
  probably 
  of 
  the 
  same 
  colour. 
  

  

  This 
  species 
  is 
  the 
  Amyhionycha 
  albiventris 
  of 
  Dejean's 
  

   Catalogue 
  ; 
  but 
  this 
  name 
  has 
  been 
  already 
  used 
  by 
  Mr. 
  Bates 
  

   for 
  another 
  species. 
  

  

  