Telenomus dignus

Telenomus dignus is a parasitoid wasp, laying its eggs in the pupae of other insects. The wasp larvae feed on the pupae of the host insect so destroying the pupae and the next generation of the host insect.

A solitary, primary endoparasitoid Telenomus dignus lives on the eggs of butterflies and moths (Lepidoptera) associated with 

  • grass crops (Poaceae)
  • rice (Oryza sativa
  • sugarcane (Saccharum officinarum)

Telenomus dignus, working alongside another species (Trichogramma chilonis), can aid the pest control of the sugarcane top borer Scirpophaga nivella, so protecting the sugarcane crop.

Species detail

Distinguishing characteristics

Telenomus dignus can be distinguished from the other species in the Telenomus genus by the following combination of characters 

  • Metasomal tergum 1 - strongly ridged
  • Metasomal tergum 2 - equally broad at the base and apex; metasoma slightly more than 2x its greatest width; 
  • Mesosoma only slightly longer than broad, not noticeably elongate 
  • Female and male antennae 
  • Male genitalia
  • Proportions of eyes to head 
  • Telenomus dignus
    Biology

    Find out about the size of Telenomus dignus and commonalities in its hosts. Learn about the behaviour of the ovipositing female.

  • telenomus-dignus
    Biological control

    Find out how Telenomus dignus, when working alongside another parasitoid species (Trichogramma chilonis), can assist pest control.

  • Telenomus dignus
    Identification

    Learn about the genus to which Telenomus dignus belongs, the other species within this genus and how Telenomus dignus can be distinguished from them.

  • Antenna of Telenomus dignus male.
    Hosts

    Find out which species are hosts to Telenomus dignus.

  • Antenna of Telenomus dignus female
    Distribution

    Discover where to find Telenomus dignus.

  • Telenomus dignus.
    References

    Get reference material for Telenomus dignus.

Images

Images showing the physical characteristics which are used to distinguish Telenomus dignus  from the other species in the Telenomus genus.

metasomal tergum 1

An electron micrograph showing strongly ridged metasomal tergum 1 of a female Telenomus dignus.

© A Polaszek
metasomal tergum

An electron micrograph showing the distinguishing metasomal tergum 2 of a female Telenomus dignus, equally broad at the base and apex and slightly more than 2x its greatest width.

© A Polaszek
Mesosoma of a female Telenomus dignus

An electron micrograph showing the distinguishing Mesosoma of a female Telenomus dignus , only slightly longer than broad and not noticeably elongate.

© A Polaszek
Antenna of Telenomus dignus female.

An electron micrograph showing the distinguishing antenna of a Telenomus dignus female. 

© A Polaszek
Antenna of Telenomus dignus male

An electron micrograph showing the distinguishing antenna of a Telenomus dignus male. 

© A Polaszek
genitalia of a male Telenomus dignus.

An electron micrograph showing the distinguishing genitalia of a male Telenomus dignus.

© A Polaszek
head in a female Telenomus dignus

An electron micrograph showing a dorsal view of the distinguishing proportion of eyes to head in a female Telenomus dignus.

© A Polaszek
Telenomus dignus

An electron micrograph showing a facial view of the distinguishing proportion of eyes to head in a female Telenomus dignus.

© A Polaszek

About the author

Andrew Polaszek
Dr Andrew Polaszek

Research entomologist specialising in parasitoid hymenoptera.

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Glossary

Parasitoid
An organism that, during its development, lives in or on the body of a single host individual, eventually killing that individual.

Endoparasitoid 
Is a parasitoid that lives inside another animal and ultimately kills it. Endoparasitoids, such as some solitary wasps, are commonly used as biological control agents.