﻿94 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  io3 
  

  

  Vasaces 
  aeneipennis 
  Champion 
  

  

  Figure 
  13, 
  i 
  

  

  Vasaces 
  aenipenms 
  Champion, 
  Biologia 
  Centrali-Americana, 
  Coleoptera, 
  vol. 
  4, 
  

   pt. 
  2, 
  p. 
  128, 
  1890. 
  

  

  This 
  is 
  apparently 
  the 
  least 
  rare 
  of 
  the 
  species 
  in 
  this 
  genus 
  and 
  

   is 
  one 
  of 
  the 
  largest 
  of 
  the 
  known 
  species. 
  The 
  triangular 
  apical 
  

   segment 
  of 
  the 
  maxillary 
  palpus, 
  the 
  elongate 
  head, 
  and 
  the 
  uniform 
  

   brassy 
  color 
  distinguish 
  it 
  from 
  the 
  other 
  species. 
  

  

  Champion 
  described 
  this 
  species 
  from 
  two 
  specimens 
  (a 
  male 
  and 
  

   a 
  female) 
  from 
  Totosinapan, 
  Mexico, 
  in 
  the 
  Salle 
  collection 
  (location 
  

   unknown). 
  The 
  U. 
  S. 
  National 
  Museum 
  collection 
  contains 
  two 
  fe- 
  

   males 
  from 
  Guatemala, 
  and 
  the 
  Museum 
  of 
  Comparative 
  Zoology 
  has 
  

   one 
  female 
  from 
  Honduras. 
  A 
  detailed 
  description 
  of 
  one 
  female 
  

   from 
  Guatemala 
  follo^vs: 
  

  

  Description. 
  — 
  (Based 
  on 
  female, 
  from 
  Guatemala). 
  Head 
  elongate, 
  

   about 
  twice 
  as 
  long 
  as 
  wide 
  at 
  bases 
  of 
  antennae. 
  Antennae 
  long, 
  

   reaching 
  nearly 
  to 
  apical 
  third 
  of 
  the 
  elytra, 
  second 
  segment 
  about 
  

   two-thirds 
  the 
  length 
  of 
  the 
  third. 
  Apical 
  segment 
  of 
  the 
  maxillary 
  

   palpus 
  triangular, 
  widest 
  at 
  middle, 
  outer 
  edge 
  straight. 
  Dorsal 
  

   surface 
  of 
  head 
  hregular, 
  but 
  without 
  distinct 
  ridges 
  or 
  depressions. 
  

   Pronotum 
  nearly 
  quadrate, 
  widest 
  anteriorly, 
  sides 
  distinctly 
  sinuate, 
  

   surface 
  irregular. 
  Elytra 
  long 
  and 
  narrow, 
  tapering 
  at 
  apex; 
  costae 
  

   distinct, 
  flat, 
  both 
  edges 
  of 
  costae 
  outlined 
  by 
  a 
  very 
  fine, 
  irregular, 
  

   impressed 
  line, 
  somewhat 
  darker 
  in 
  color, 
  giving 
  in 
  gross 
  appearance 
  

   the 
  impression 
  that 
  the 
  costae 
  are 
  double. 
  

  

  Surface 
  clothed 
  with 
  extremely 
  fine, 
  very 
  short, 
  sparse, 
  golden 
  

   hairs 
  which 
  are 
  somewhat 
  larger 
  on 
  the 
  thorax 
  and 
  dorsal 
  surface 
  of 
  

   the 
  head. 
  Surface 
  rugose, 
  that 
  of 
  the 
  thorax 
  and 
  head 
  indistinctly 
  

   rugose-punctate. 
  Color: 
  uniformly 
  brassy, 
  dorsal 
  surface 
  of 
  the 
  head 
  

   and 
  ventral 
  surface 
  of 
  the 
  thorax 
  and 
  abdomen 
  darker. 
  Length: 
  

   15 
  mm. 
  

  

  Variation 
  : 
  The 
  surface 
  of 
  the 
  head 
  and 
  thorax 
  varies 
  from 
  rugose- 
  

   punctate 
  to 
  shiny 
  smooth 
  with 
  sparse 
  punctures. 
  The 
  length 
  varies 
  

   from 
  10 
  to 
  16 
  mm. 
  The 
  color 
  is 
  darker 
  in 
  some 
  specimens 
  than 
  in 
  

   others. 
  

  

  Distribution. 
  — 
  Known 
  only 
  from 
  the 
  types 
  from 
  Mexico 
  and 
  the 
  

   above-mentioned 
  specimens 
  from 
  Guatemala 
  and 
  Honduras 
  (Rosario 
  

   San 
  Juancito). 
  

  

  Material 
  examined.— 
  Female, 
  USNM 
  coll., 
  Guatemala, 
  Santa 
  

   Maria, 
  W. 
  Schaus. 
  

  

  U. 
  S, 
  GOVERNMENT 
  PRINTING 
  OFFICE: 
  1953 
  

  

  