Nemorilla

Members of Nemorilla can be distinguished from other Winthemiini by genitalic characters and bristle patterns, though specific diagnostic features for the genus require examination of adult specimens. Species-level identification typically relies on male terminalia and chaetotaxy. The genus is morphologically similar to other Exoristinae genera, necessitating expert taxonomic verification.

Agricultural and natural systems where lepidopteran host larvae occur. Documented associations include cowpea fields (Vigna unguiculata) for N. maculosa and ornamental Buxus plantings for N. floralis. Habitat specifics vary by species and host availability.

Recorded from Denmark, Norway, and Sweden (GBIF); individual species have broader distributions including Africa (N. maculosa introduced to Benin from Taiwan), Europe (N. floralis in Croatia), and Asia (native range of multiple species).

Larval stages develop internally within lepidopteran host larvae; adult feeding habits not documented in available sources.

• Maruca vitrata - parasitoidlegume pod borer (Crambidae), confirmed host of N. maculosa
• Cydalima perspectalis - parasitoidbox tree moth (Crambidae), first record of N. floralis parasitism

Solitary endoparasitoid development within host larvae. Oviposition strategy varies by species and influences fertility and host mortality. Specific details on egg, larval instars, pupation sites, and generation time not documented in available sources.

Nemorilla maculosa females use herbivore-induced plant volatiles (HIPVs) for host location, showing attraction to volatile organic compounds from cowpea plants infested with Maruca vitrata larvae. Attraction is more pronounced to the combination of host larvae and infested plant parts than to uninfested plants or mechanically damaged plants. Naïve and oviposition-experienced females show similar olfactory responses.

Parasitoid of agricultural pest species, with potential as a biological control agent. N. maculosa has been evaluated for control of the legume pod borer in African cowpea systems; N. floralis has been identified as a potential control agent for the invasive box tree moth in Europe.

Investigated for biological control applications against crop pests and invasive species. Laboratory colonies have been established for experimental purposes (N. maculosa at IITA, Benin). Parasitism rates in field collections have been documented at 1.2–2.4% for N. floralis on C. perspectalis.

• ExoristaAnother Exoristinae genus with similar parasitoid biology on Lepidoptera; distinguished by genitalic morphology and host range patterns
• Compsilura concinnataShares Cydalima perspectalis as a host and similar tachinid parasitoid ecology; differs in taxonomic placement within Exoristinae
• Pseudoperichaeta nigrolineataOverlapping host use on Cydalima perspectalis; previously the only documented tachinid parasitoid of this host in Europe before N. floralis record

• Tachinidae
• parasitoid
• biological control
• Lepidoptera parasitoid
• herbivore-induced plant volatiles
• agricultural entomology

• BugGuide
• Wikipedia
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life
• Influence of Rearing Substrates and Nontarget Hosts on the Bionomics of the Tachinid Parasitoid Nemorilla maculosa (Diptera: Tachinidae)
• Influence of oviposition strategy of Nemorilla pyste and Nilea erecta (Diptera: Tachinidae) on parasitoid fertility and host mortality
• The parasitic fly Nemorilla maculosa exploits host‐plant volatiles to locate the legume pod borer, Maruca vitrata
• First Record of <em>Nemorilla floralis</em> (Fallén 1810) (Diptera, Tachinidae) Parasitism on Box Tree Moth – <em>Cydalima perspectalis</em> (Walker 1859) (Lepidoptera, Crambidae) Larvae