﻿INSECTS 
  INJURIOUS 
  TO 
  CROPS 
  IN 
  ZANZIBAR. 
  155 
  

  

  Coleopiera. 
  

  

  Calandra 
  oryzae, 
  L. 
  This 
  cosmopolitan 
  pest 
  of 
  grain 
  is 
  extremely 
  common 
  in 
  

   rice, 
  and 
  is 
  also 
  found 
  in 
  maize 
  and 
  sorghum. 
  

  

  Laemophloeus 
  pusillus, 
  Schonh. 
  Very 
  abundant 
  in 
  maize. 
  

  

  Tribolium 
  castaneum, 
  Hbst. 
  Common 
  in 
  maize 
  and 
  occasionally 
  found 
  in 
  rice. 
  

  

  Silvanus 
  surinamensis, 
  L. 
  Abundant 
  in 
  maize. 
  

  

  Tenebroides 
  mauritanicus, 
  L. 
  An 
  occasional 
  pest 
  of 
  maize. 
  

  

  Bruchus 
  chinensis, 
  L. 
  A 
  serious 
  pest 
  of 
  all 
  beans 
  and 
  pulses. 
  Numbers 
  are 
  

   always 
  to 
  be 
  found 
  in 
  Phaseolus 
  mungo 
  and 
  Cajanus 
  indicus. 
  

  

  Bruchus 
  ornatus, 
  Fhs. 
  Not 
  so 
  common 
  as 
  B. 
  chinensis, 
  but 
  has 
  been 
  recorded 
  

   from 
  beans. 
  

  

  Carpophilus 
  humeralis, 
  F. 
  Very 
  common 
  in 
  maize 
  cobs 
  in 
  the 
  field, 
  generally 
  

   in 
  those 
  attacked 
  by 
  fungus. 
  

  

  Cossonus 
  suturalis, 
  Boh. 
  An 
  occasional 
  pest 
  of 
  stored 
  sweet 
  potatoes. 
  

  

  Dermestes 
  vulpinus, 
  F. 
  Abundant 
  in 
  dried 
  fish. 
  

  

  Latheticus 
  oryzae, 
  Waterh. 
  An 
  occasional 
  pest 
  of 
  maize. 
  

  

  Rhizopertha 
  dominica, 
  F. 
  Occasionally 
  in 
  maize. 
  

  

  Necrobia 
  rufipes, 
  de 
  G. 
  Both 
  larvae 
  and 
  adults 
  are 
  abundant 
  in 
  dried 
  copra, 
  

   feeding 
  on 
  the 
  kernels 
  ; 
  the 
  former 
  bore 
  long 
  cylindrical 
  tunnels 
  into 
  the 
  dried 
  

   copra. 
  

  

  Lepidoptera. 
  

  

  Ephestia 
  cautella, 
  Wlk. 
  Larvae 
  very 
  common 
  in 
  rice 
  and 
  various 
  flours. 
  

  

  