Family Steinernematidae

                                 Revised 01/31/26

Classification:

Phylum Nematoda

  Class Chromadorea

    Subclass Chromadoria

Order Rhabditida

              Suborder Rhabditina

Infraorder Rhabditomorpha

 SuperfamilyRhabditoidea

Steinernematidae Chitwood & Chitwood, 1937

Obligate insect parasites. Infective juveniles carry symbiotic bacteria in the bacterial chamber of the intestine. Sexually reproducing (Nguyen and Smart, 1996).           
   
Unlike in the genus Heterorhabditis, the first generation of adults in the Steinernematidae (Steinernema and Neosteinernema) developing from the IJs are amphimicitic, not hermaproditic; they reproduce sexually. Subsequent generations of adults are also amphimictic.        


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Body size range for the species of this Family in the database - Click:

References

Hunt, D.J. and Nguyen, K.B. 2016. Advances in Entonmopathogenic Nematode Taxonomy and Phylogeny. Nematology Monographs and Perspecives 12 Brill, Leiden.

Nguyen, K.B. and Smart, G.C. 1996. Identification of entomopathogenic nematodes in the Steinernematidae and Heterorhabditidae. J. Nematology 28:286-300.

Stock, S.P. and Reid, A.P. 2004. Biosystematics of entomopathogenic nematodes (Steinernematidae, Heterorhabditidae): current status and future directions.  Nematology Monographs and Persdectives 2:435-446.

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