Subfamily APHELENCHOIDINAE

                                                                       Revised: 20-05-2005

Classification:

      Secernentea
       Tylenchida
        Aphelenchina
         Aphelenchoidea
          Aphelenchoididae
           Aphelenchoidinae

Morphology and Anatomy:

• Characterized by large metacorpus (median bulb)
• Esophageal glands usually not enclosed in a bulb (overlapping). 
• Dorsal esophageal gland opens into lumen of esophagus in metacorpus, just anterior to the pump chamber.
• Subventral esophageal glands open into lumen of esophagus in metacorpus, posterior to the pump chamber.
• Males have caudal papillae. 
• Males in Aphelenchoidinae generally do not have caudal alae, or have very small alae.
• Often, but not exclusively, associated with ferns, gymnosperms, and monocotyledons. 
  

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