﻿464 
  Mr. 
  Charles 
  J. 
  Gahan 
  on 
  the 
  

  

  Head 
  longer 
  than 
  broad, 
  wedge-shaped 
  ; 
  clyj)eus 
  with 
  a 
  strongly 
  

   raised 
  longitudinal 
  ridge, 
  the 
  surface 
  on 
  either 
  side 
  finely 
  rugulose, 
  

   rather 
  shorter 
  than 
  the 
  body, 
  filiform, 
  the 
  second 
  joint 
  half 
  the 
  

   length 
  of 
  the 
  basal 
  one, 
  the 
  third 
  twice 
  as 
  long 
  as 
  the 
  second, 
  the 
  

   rest 
  each 
  nearly 
  equal 
  in 
  length 
  to 
  the 
  fourth, 
  the 
  four 
  outer 
  joints 
  

   obscure 
  fulvous, 
  the 
  apical 
  darker 
  than 
  the 
  three 
  others. 
  Thorax 
  

   one-third 
  broader 
  than 
  long 
  ; 
  sides 
  parallel, 
  very 
  slightly 
  produced 
  

   before 
  the 
  middle, 
  subsinuate 
  behind 
  the 
  latter 
  ; 
  the 
  hinder 
  angles, 
  

   the 
  anterior 
  ones 
  with 
  an 
  obtuse 
  tubercle 
  ; 
  disk 
  convex, 
  finely 
  but 
  

   remotely 
  punctured, 
  impressed 
  with 
  three 
  round 
  foveas, 
  placed 
  one 
  

   on 
  either 
  side, 
  and 
  the 
  third, 
  rather 
  smaller, 
  on 
  the 
  medial 
  line 
  

   near 
  the 
  base. 
  Elytra 
  oblong-ovate, 
  dilated 
  posteriori}', 
  their 
  

   apices 
  conjointly 
  regularly 
  rounded 
  ; 
  above 
  convex, 
  subventricose 
  

   posteriorly, 
  transversely 
  excavated 
  below 
  the 
  basilar 
  space, 
  dis- 
  

   tinctly 
  and 
  somewhat 
  closely 
  punctured 
  ; 
  disk 
  below 
  the 
  base 
  with 
  

   a 
  number 
  of 
  rather 
  strongly 
  raised 
  irregular 
  wrinkles, 
  which 
  dis- 
  

   appear 
  towards 
  the 
  apex 
  of 
  the 
  elytron. 
  [Baly.] 
  

  

  122. 
  Diabrotica 
  rugulosa, 
  Baly. 
  

   Trans. 
  Ent. 
  Soc. 
  Lond., 
  1886, 
  p. 
  450. 
  

   Hab. 
  Eastern 
  Ecuador. 
  

  

  123. 
  Diabrotica 
  assimilis, 
  Gahan, 
  sp. 
  n. 
  

  

  Atro-cyanea, 
  femoribus 
  antennisque 
  flavescentibus, 
  his 
  apice 
  

   infuscatis 
  ; 
  prothoracis 
  dorso 
  bifoveolato, 
  subsparsim 
  minuteque 
  

   punctato 
  ; 
  elytris 
  crebre 
  fortiterque 
  rugoso-punctatis, 
  cyaneis 
  (vel 
  

   olivaceo-tinctis), 
  epipleuris 
  antice 
  et 
  macula 
  marginali 
  utrinque 
  

   ante 
  medium 
  sordide 
  flavis. 
  Long. 
  7^ 
  — 
  8i 
  mm. 
  

  

  Hab. 
  Ecuador 
  (Buckley). 
  

  

  This 
  species 
  closely 
  resembles 
  D. 
  rugulosa, 
  Baly, 
  but 
  differs 
  

   from 
  it 
  by 
  the 
  following 
  characters 
  : 
  — 
  Prothorax 
  less 
  stronglj' 
  

   punctm'ed, 
  the 
  foveas 
  of 
  its 
  disk 
  joined 
  by 
  means 
  of 
  a 
  feeble 
  trans- 
  

   verse 
  depression. 
  Etytra 
  without 
  raised 
  longitudinal 
  lines 
  on 
  the 
  

   disk, 
  with 
  their 
  epipleures 
  rather 
  broader 
  and 
  flatter, 
  yellowish 
  in 
  

   their 
  anterior 
  two-thirds 
  ; 
  with 
  a 
  yellowish 
  spot 
  just 
  before 
  the 
  

   middle 
  of 
  the 
  lateral 
  margin 
  of 
  each 
  elytron. 
  Femora 
  and 
  antennae 
  

   yellowish 
  rather 
  than 
  greenish 
  ; 
  the 
  third 
  joint 
  of 
  the 
  latter 
  shorter 
  

   than 
  the 
  fourth, 
  and 
  nearly 
  twice 
  as 
  long 
  as 
  the 
  second. 
  Hind 
  

   breast 
  without 
  a 
  patch 
  of 
  golden 
  pubescence 
  on 
  each 
  side. 
  

  

  