Telenomus calvus

Johnson

Telenomus calvus is a phoretic of the spined soldier bug, Podisus maculiventris. Females exhibit a distinctive riding , attaching to bodies at 25 different locations with preference for the pronotum and femurs, using hypertrophied for secure attachment. They dismount specifically during host oviposition to parasitize egg masses. The has a relatively low of approximately 22 progeny per female, with female production peaking early in life and declining rapidly, while male production remains low and constant.

Pronunciation

How to pronounce Telenomus calvus: /tɛˈlɛnəməs ˈkalvəs/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

T. calvus can be distinguished from by its phoretic and morphological adaptations for attachment. Females possess greatly enlarged that facilitate gripping host surfaces. The is specifically associated with Podisus maculiventris , with successful development restricted to host eggs ≤12 hours old despite continued oviposition attempts on older masses.

Habitat

Laboratory studies indicate association with agricultural or natural where the Podisus maculiventris occurs. The has been documented in Louisiana in association with its host.

Distribution

Louisiana, USA. Specific geographic range beyond this location has not been documented in available sources.

Diet

feed on honey for maintenance. Larvae develop within of the Podisus maculiventris.

Host Associations

Life Cycle

Pre-imaginal development occurs only within ≤12 hours old. Females ride phoretically on hosts prior to oviposition, dismounting during host egg-laying to parasitize masses. Development time and specific instar details not documented.

Behavior

Phoretic females attach to bodies at 25 different locations, with strong preference for pronotum and femurs. Attachment is facilitated by hypertrophied . dismount from hosts specifically at the time of host oviposition to parasitize masses. Females not in phoretic association, when presented with fresh egg masses daily, typically deposit all or nearly all eggs in the first egg mass encountered. Oviposition attempts continue on older egg masses despite developmental failure.

Ecological Role

of the Podisus maculiventris. May contribute to of this beneficial predatory , potentially limiting its in agricultural systems.

Human Relevance

Studied as a agent and for its interactions with beneficial predatory insects. The phoretic and specific associations make it a subject of interest for understanding -host evolutionary relationships.

Similar Taxa

  • Telenomus remusBoth are in the Telenomus, but T. remus parasitizes lepidopteran eggs (notably Spodoptera frugiperda) and lacks the documented phoretic and specific association with pentatomid characteristic of T. calvus.

Tags

Sources and further reading