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aphis

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aphis


  2  definitions  found 
 
  From  Webster's  Revised  Unabridged  Dictionary  (1913)  [web1913]: 
 
  Aphis  \A"phis\,  n.;  pl  {Aphides}.  [NL.]  (Zo["o]l.) 
  A  genus  of  insects  belonging  to  the  order  Hemiptera  and 
  family  {Aphid[ae]},  including  numerous  species  known  as  plant 
  lice  and  green  flies. 
 
  Note:  Besides  the  true  males  and  females,  there  is  a  race  of 
  wingless  asexual  individuals  which  have  the  power  of 
  producing  living  young  in  rapid  succession,  and  these 
  in  turn  may  produce  others  of  the  same  kind  for  several 
  generations,  before  sexual  individuals  appear.  They 
  suck  the  sap  of  plants  by  means  of  a  tubular  proboscis, 
  and  owing  to  the  wonderful  rapidity  of  their 
  reproduction  become  very  destructive  to  vegetation. 
  Many  of  the  {Aphid[ae]}  excrete  honeydew  from  two  tubes 
  near  the  end  of  the  body. 
 
  From  WordNet  r  1.6  [wn]: 
 
  Aphis 
  n  :  type  genus  of  the  Aphididae:  injurious  to  fruit  trees  and 
  vegetables  [syn:  {Aphis},  {genus  Aphis}] 




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