﻿268 
  Mr. 
  H. 
  W. 
  Bates' 
  additions 
  tu 
  the 
  

  

  State 
  of 
  Panama, 
  by 
  Mr. 
  Champion. 
  It 
  is 
  a 
  smaller 
  

   and 
  narrower 
  insect, 
  with 
  the 
  head 
  strongly 
  punctured 
  

   throughout, 
  and 
  the 
  sides 
  of 
  the 
  thorax 
  rounded 
  with 
  

   but 
  slight 
  angularity. 
  

  

  Brachiniis 
  amplipennis. 
  

   B. 
  mexicano 
  (Dej.) 
  quoad 
  formani 
  siniilis, 
  sed 
  major 
  elytrisque 
  

   relative 
  latioribus. 
  Fulvo-aurantiacus, 
  elytris 
  viridescenti-cseruleis, 
  

   antennis 
  articulis 
  Bio 
  vel 
  4to 
  leviter 
  infuscatis 
  ; 
  subtus 
  episternis 
  

   posticis 
  ventrisque 
  lateribus 
  nigrescentibus. 
  Caput 
  post 
  oculos 
  

   gradatim 
  fere 
  recte 
  angustatum, 
  coUo 
  baud 
  constricto, 
  setifero- 
  

   punctatuni 
  vertice 
  parum 
  convexo 
  Isevi. 
  Thorax 
  anguste 
  cordatus 
  

   quam 
  in 
  B. 
  mexicano 
  planior, 
  margine 
  laterali 
  (a 
  latere 
  viso) 
  

   multo 
  minus 
  arcuato 
  ; 
  versus 
  basin 
  plus 
  minusve 
  profunda 
  

   sinuatus 
  angulis 
  posticis 
  exstantibus, 
  supra 
  dense 
  erecte 
  pilosus 
  

   nee 
  rugulosus. 
  Elytra 
  mediocriter 
  convexa, 
  obtuse 
  carinata 
  

   (carinis 
  Isevibus, 
  versus 
  latera 
  et 
  apicem 
  obsoletis) 
  interstitiis 
  

   pilifero-pluripunctulatis. 
  Antennae 
  longitudine 
  mediocres. 
  Long. 
  

   11 
  — 
  14 
  millim. 
  

  

  Hab. 
  Villa 
  Lerdo, 
  in 
  Durango 
  ; 
  Paso 
  del 
  Norte 
  in 
  

   Chihuahua, 
  Tampico 
  in 
  Tamaulipas 
  (Hoge). 
  

  

  In 
  real 
  affinity, 
  and 
  especially 
  in 
  the 
  sculpture 
  and 
  

   pubescence 
  of 
  the 
  thorax, 
  this 
  species 
  belongs 
  to 
  the 
  

   North 
  American 
  group, 
  of 
  which 
  B.fumans 
  is 
  the 
  type. 
  

   Though 
  similar 
  in 
  form 
  to 
  the 
  larger 
  examples 
  of 
  

   B. 
  mexicanus, 
  it 
  differs 
  widely 
  from 
  that 
  species, 
  and 
  

   from 
  all 
  the 
  Mexican 
  species 
  hitherto 
  described, 
  except 
  

   B. 
  hirsutus 
  (Bates), 
  in 
  the 
  densely 
  hairy 
  thorax, 
  which, 
  

   in 
  the 
  other 
  species, 
  shows 
  only 
  a 
  few 
  hairs 
  towards 
  the 
  

   anterior 
  angles. 
  B. 
  mexicanus 
  differs 
  besides 
  in 
  the 
  

   blackish 
  antennal 
  joints 
  3 
  to 
  4, 
  in 
  the 
  black 
  abdomen, 
  

   reddish 
  only 
  in 
  the 
  middle 
  of 
  the 
  base, 
  and 
  in 
  the 
  more 
  

   convex 
  elytra 
  and 
  more 
  strongly 
  raised 
  carina 
  and 
  

   glabrous 
  interstices. 
  B. 
  hirsutus 
  is 
  smaller 
  than 
  B. 
  

   amplipeimis, 
  with 
  shorter 
  and 
  broader 
  thorax 
  and 
  more 
  

   acutely 
  carinated 
  elytra. 
  

  

  Brachinus 
  Tahasconus. 
  

  

  B. 
  amplipenni 
  affinis 
  et 
  similis 
  ; 
  differt 
  solum 
  elytris 
  disco 
  et 
  

   basi 
  fere 
  glabris 
  interstitiis 
  uniseriato- 
  vel 
  pauciter-punctulatis. 
  

   Long. 
  12 
  — 
  14 
  millim. 
  

  

  Hab. 
  Juan 
  Bautista 
  in 
  Tabasco 
  ; 
  Tlacotalpam 
  in 
  

   Vera 
  Cruz 
  (Iloge). 
  

  

  