﻿OF 
  THE 
  UNITED 
  STATES. 
  485 
  

  

  said 
  in 
  the 
  description 
  concerning 
  the 
  testaceous 
  sutural 
  margin 
  of 
  the 
  elytra, 
  and 
  the 
  

   dorsal 
  vitta 
  of 
  the 
  thorax 
  is 
  said 
  to 
  be 
  abbreviated. 
  Three 
  specimens 
  in 
  my 
  collection 
  

   agree 
  perfectly 
  with 
  the 
  first 
  description 
  given 
  by 
  Germar: 
  a 
  fourth 
  has 
  a 
  small 
  fuscous 
  

   fascia 
  near 
  the 
  apex 
  of 
  the 
  elytra, 
  thus 
  approaching 
  Germar's 
  second 
  description 
  : 
  the 
  

   vitta 
  of 
  the 
  elytra 
  might 
  very 
  easily 
  be 
  so 
  dilated 
  as 
  to 
  remove 
  the 
  sutural 
  yellow 
  margin 
  

   entirely, 
  and 
  if 
  this 
  form 
  coexisted 
  with 
  the 
  posterior 
  band 
  just 
  mentioned, 
  the 
  elytra 
  

   would 
  agree 
  with 
  those 
  described 
  in 
  Germar's 
  Zeitschrift: 
  but 
  I 
  cannot 
  suppose 
  that 
  the 
  

   dorsal 
  black 
  vitta 
  of 
  the 
  thorax 
  would 
  ever 
  become 
  abbreviated 
  posteriorly 
  as 
  there 
  de- 
  

   scribed. 
  

  

  Apart 
  from 
  the 
  coloration 
  of 
  the 
  elytra, 
  this 
  species 
  is 
  distinguished 
  from 
  M. 
  dorsal 
  is 
  

   by 
  the 
  longer 
  and 
  more 
  densely 
  punctured 
  thorax: 
  the 
  thorax 
  of 
  the 
  male 
  is 
  almost 
  one- 
  

   half 
  longer 
  than 
  wide, 
  and 
  its 
  sides 
  are 
  nearly 
  straight: 
  those 
  of 
  the 
  female 
  are 
  broadly 
  

   rounded 
  anteriorly, 
  and 
  the 
  disc 
  is 
  anteriorly 
  a 
  little 
  more 
  convex 
  than 
  in 
  M. 
  dorsalis. 
  The 
  

   under 
  surface 
  of 
  the 
  thorax 
  and 
  prosternum 
  is 
  more 
  or 
  less 
  varied 
  with 
  blackish 
  piceous. 
  

  

  12. 
  M. 
  dorsalis, 
  testaceus, 
  subtiliter 
  parce 
  pubescens, 
  capite 
  nigro, 
  thorace 
  latitudine 
  longiore, 
  

   antice 
  angustato 
  et 
  latoribus 
  rotundato, 
  minus 
  dense 
  punctato, 
  linea 
  dorsali 
  fusiformi 
  nigra, 
  elytris 
  

   striis 
  profundis 
  punctatis, 
  iuterstitiis 
  parce 
  punctulatis, 
  macula 
  utrinque 
  elliptica 
  ante 
  medium, 
  fas- 
  

   ciaque 
  pone 
  medium 
  angulata 
  nigris, 
  postpectore 
  abdomineque 
  nigro-fuscis. 
  Long. 
  -23 
  — 
  "27. 
  

  

  Mater 
  dorsalis 
  Say, 
  Journ. 
  Acad. 
  Nat. 
  Sc. 
  3, 
  167. 
  

   Cryptohypnus 
  dorsalis 
  Germ. 
  Zeitschr. 
  147. 
  

  

  A 
  very 
  common 
  species, 
  sufficiently 
  distinct 
  from 
  all 
  its 
  allies 
  by 
  the 
  distinct, 
  distant 
  

   punctures 
  of 
  the 
  thorax. 
  

  

  13. 
  M. 
  a 
  m 
  a 
  b 
  i 
  1 
  i 
  s 
  , 
  testaceus, 
  subtiliter 
  parce 
  pubescens, 
  capite 
  nigro, 
  thorace 
  latitudine 
  longiore, 
  

   antice 
  angustato 
  et 
  lateribus 
  rotundato, 
  sat 
  dense 
  punctato, 
  linea 
  dorsali 
  fusiformi 
  nigra, 
  elytris 
  striis 
  

   sat 
  profundis 
  punctatis, 
  interstitiis 
  parce 
  punctulatis, 
  sutura 
  antice, 
  macula 
  utrinque 
  elongata, 
  fascia- 
  

  

  que 
  postica 
  angulata 
  nigris. 
  Long. 
  "18. 
  

  

  Maryland, 
  Prof. 
  Adams. 
  This 
  beautiful 
  little 
  species 
  is 
  a 
  miniature 
  of 
  M. 
  dorsalis, 
  and 
  

   only 
  differs 
  by 
  the 
  thorax 
  being 
  more 
  densely 
  punctured, 
  and 
  a 
  little 
  more 
  convex: 
  the 
  

   suture 
  is 
  blackish 
  near 
  the 
  scutellum, 
  and 
  the 
  spot 
  shows 
  a 
  disposition 
  to 
  be 
  prolonged 
  to 
  

   the 
  posterior 
  band, 
  neither 
  of 
  which 
  characters 
  is 
  seen 
  in 
  M. 
  dorsalis. 
  In 
  two 
  specimens 
  

   the 
  under 
  surface 
  is 
  testaceous, 
  in 
  a 
  third 
  the 
  postpectus 
  and 
  abdomen 
  are 
  dusky. 
  

  

  14. 
  M. 
  lepidus, 
  testaceus, 
  subtiliter 
  pubescens, 
  capite 
  nigro, 
  thorace 
  latitudine 
  sesqui 
  longiore, 
  

   antice 
  vix 
  angustato, 
  angulis 
  posticis 
  divaricatis, 
  confertim 
  minus 
  subtiliter 
  punctato, 
  linea 
  tenui 
  dor- 
  

   sali 
  fusca, 
  elytris 
  striis 
  profundis 
  punctatis, 
  interstitiis 
  parce 
  punctulatis, 
  sutura 
  angustissime, 
  vittaque 
  

   angusta 
  versus 
  apicem 
  cum 
  sutura 
  confluente 
  fuscis, 
  hac 
  siepe 
  obsoleta. 
  Long. 
  "18. 
  

  

  Two 
  specimens, 
  Georgia. 
  The 
  colour 
  beneath 
  is 
  uniform, 
  pale, 
  testaceous. 
  This 
  

   species 
  is 
  less 
  shining 
  than 
  the 
  others, 
  and 
  more 
  elongate 
  in 
  its 
  form: 
  the 
  long 
  densely 
  

   punctured 
  thorax, 
  not 
  narrowed 
  in 
  front, 
  hardly 
  rounded 
  on 
  the 
  sides, 
  and 
  slightly 
  nar- 
  

   rowed 
  before 
  the 
  divergent 
  posterior 
  angles 
  will 
  readily 
  distinguish 
  it. 
  

  

  He?,iirhipus 
  hair. 
  

   1. 
  H. 
  f 
  a 
  s 
  c 
  i 
  c 
  u 
  1 
  a 
  r 
  i 
  s 
  , 
  niger, 
  dense 
  fusco-cinereo-pubescens, 
  thorace 
  latitudine 
  longiore, 
  antrorsum 
  

   modice 
  angustato, 
  lateribus 
  rufescentibus 
  Into 
  rotundatis, 
  sat 
  grosse 
  punctato, 
  basi 
  medio 
  breviter 
  ele- 
  

  

  