﻿Order 
  CORRODENTIA. 
  

  

  This 
  order 
  is 
  composed 
  of 
  a 
  rather 
  small 
  number 
  of 
  soft-bodied 
  insects 
  

   with 
  a 
  large 
  head 
  which, 
  while 
  it 
  is 
  not 
  sunken 
  into 
  the 
  prothorax, 
  has 
  

   no 
  distinct 
  neck. 
  The 
  mouth 
  parts 
  are 
  small, 
  fitted 
  for 
  gnawing, 
  which 
  

   gave 
  rise 
  to 
  the 
  ordinal 
  term, 
  meaning 
  "gnawers." 
  The 
  antennae 
  are 
  long 
  

   and 
  slender, 
  and 
  the 
  wings 
  when 
  present 
  are 
  large 
  and 
  frail. 
  Many 
  are 
  

   wingless 
  and 
  some 
  of 
  these, 
  occurring 
  in 
  houses, 
  are 
  known 
  as 
  book-lice, 
  

   because 
  they 
  gnaw 
  the 
  calendered 
  surface 
  of 
  the 
  paper. 
  They 
  are 
  found, 
  

   usually, 
  in 
  dry, 
  dusty 
  places, 
  feeding 
  on 
  starchy 
  materials, 
  and 
  some- 
  

   times 
  they 
  attack 
  museum 
  specimens. 
  They 
  resemble 
  lice 
  in 
  shape 
  and 
  

   appearance, 
  but 
  run 
  rapidly 
  and 
  have 
  the 
  posterior 
  thighs 
  much 
  enlarged. 
  

   Cleanliness 
  and 
  naphthaline 
  or 
  carbolic 
  acid 
  are 
  usually 
  efficient 
  agents 
  in 
  

   getting 
  rid 
  of 
  these 
  species. 
  

  

  The 
  winged 
  forms 
  occur 
  on 
  the 
  bark 
  of 
  trees 
  overgrown 
  with 
  moss 
  or 
  

   lichens, 
  which 
  serve 
  as 
  food 
  for 
  the 
  insects. 
  The 
  venation 
  of 
  the 
  wings 
  

   is 
  very 
  peculiar 
  and 
  tortuous, 
  and 
  as 
  fliers 
  the 
  species 
  are 
  not 
  remark- 
  

   ble, 
  most 
  of 
  them 
  preferring 
  to 
  drop 
  to 
  the 
  ground 
  when 
  disturbed 
  rather 
  

   than 
  use 
  their 
  wings. 
  They 
  are 
  not 
  harmful 
  in 
  any 
  way, 
  though 
  when 
  

   they 
  occur 
  in 
  numbers 
  sufficient 
  to 
  attract 
  attention 
  they 
  are 
  usually 
  

   looked 
  upon 
  with 
  suspicion. 
  

  

  No 
  systematic 
  collections 
  in 
  this 
  order 
  have 
  been 
  made 
  in 
  New 
  Jersey, 
  

   although 
  it 
  is 
  known 
  that 
  we 
  have 
  a 
  large 
  number 
  of 
  species. 
  The 
  present 
  

   list, 
  therefore, 
  is 
  a 
  compilation 
  from 
  the 
  catalogue 
  of 
  Neuropteroid 
  in- 
  

   sects 
  by 
  Mr. 
  Nathan 
  Banks, 
  and 
  it 
  includes 
  those 
  species 
  of 
  such 
  general 
  

   distribution 
  as 
  to 
  make 
  it 
  reasonably 
  probable 
  that 
  they 
  are 
  members 
  of 
  

   our 
  fauna. 
  It 
  is 
  certain 
  that, 
  when 
  our 
  species 
  are 
  once 
  carefully 
  studied, 
  

   they 
  will 
  be 
  found 
  to 
  be 
  materially 
  more 
  numerous 
  than 
  here 
  recorded. 
  

  

  Fig. 
  10. 
  — 
  Psocus 
  lineatus. 
  This 
  represents 
  tlie 
  forms 
  usually 
  found 
  on 
  tree 
  trunks. 
  

  

  Family 
  PSOCID.E. 
  

  

  Sub-family 
  Atropin.^. 
  

   TROCTES 
  Burm. 
  

   T. 
  divinatorius 
  Miill. 
  (Atropos) 
  This 
  or 
  an 
  allied 
  species 
  is 
  common 
  

   in 
  houses 
  among 
  books 
  and 
  papers 
  or 
  in 
  dusty 
  corners 
  throughout 
  

  

  (50 
  

  

  