Lissonota impressor is a species of Ichneumonid wasp belonging to the family Ichneumonidae, subfamily Banchinae. It is a koinobiont endoparasitoid, meaning it allows its host to continue feeding and developing for a period after oviposition before eventually consuming and killing it from the inside.
Taxonomy
- Kingdom: Animalia
- Phylum: Arthropoda
- Class: Insecta
- Order: Hymenoptera
- Family: Ichneumonidae
- Subfamily: Banchinae
- Genus: Lissonota
- Species: Lissonota impressor (Thunberg, 1822)
Description
Lissonota impressor is a moderately sized wasp, typically ranging from 10 to 15 millimeters in body length. Its body is generally slender and predominantly black, often exhibiting a shiny appearance. Distinctive features frequently include reddish or yellowish coloration on parts of the legs, antennae, and sometimes on sections of the abdomen. Females possess a notably long, prominent ovipositor, which is a key characteristic used for laying eggs inside the host larva. Like other members of the genus Lissonota, it is characterized by specific wing venation patterns and an overall elongated body form typical of many Ichneumonid wasps.Distribution and Habitat
This species has a broad distribution across the Palearctic realm, being found in various regions of Europe, North Africa, and parts of Asia. Its presence is closely tied to the distribution of its host species. Consequently, it is commonly encountered in habitats such as woodlands, orchards, gardens, and other areas where clearwing moths and similar wood-boring caterpillars are present, often near trees or shrubs that serve as host plants.Biology and Ecology
Lissonota impressor functions as an important natural enemy of several species of Lepidoptera, primarily acting as a parasitoid of clearwing moths (family Sesiidae) and, to a lesser extent, goat moths (family Cossidae). The female wasp uses her long, needle-like ovipositor to locate and inject a single egg into the larva of a host moth, which typically bores into the stems, trunks, or roots of plants.Known host species include, but are not limited to:
- Synanthedon tipuliformis (Currant Clearwing Moth)
- Synanthedon vespiformis
- Paranthrene tabaniformis
- Cossus cossus (Goat Moth)
After oviposition, the wasp larva develops internally within the host caterpillar, consuming its tissues as it grows. The host continues to feed and develop for a period after being parasitized, exhibiting minimal immediate impact. Once the wasp larva is fully developed, it eventually kills the host. Pupation typically occurs either within the remains of the dead host or the wasp larva may emerge from the host to pupate nearby. As a natural parasitoid, Lissonota impressor plays a role in the biological control and natural regulation of its host insect populations within its ecosystem.