Life tables are indispensable in IPM, offering an analysis of insect population dynamics. These tables record survival rates, fecundity, and other parameters at various developmental stages, enabling the identification of key factors that affect population numbers and the prediction of growth trajectories. This review discusses the application of life tables in agricultural pest management, including the assessment of the pest control capacity of natural enemies, the evaluation of biological agents, and the screening of insect-resistant plant species. In vector insect control, life tables are used to evaluate the transmission risks, model the population dynamics, and interfere with the life cycles of vector insects. For invasive pests, life tables help us to monitor population dynamics and predict future population sizes. In chemical pest control, life tables assist in evaluating the fitness costs of pesticide resistance, guiding insecticide selection, and optimizing application timing. In the final section, we explore future research directions, emphasizing the potential of integrating new technologies such as genomics, ethology, and satellite remote sensing to enhance life table analysis and improve IPM strategies.

Background: Phortica okadai and Phortica variegata are the primary vectors of the zoonotic eyeworm Thelazia callipaeda , which infects humans and various mammals. Climate change and intensified human activities have altered the potential suitable habitats of these vectors, posing a risk of expanded T. callipaeda transmission. This study aims to predict the current potential suitable habitats and future distribution patterns of the two species, providing a scientific basis for vector-borne disease prevention and control. Methods: Species occurrence records were compiled from the Global Biodiversity Information Facility (GBIF; https://www.gbif.org/ ) and systematic literature reviews. The MaxEnt model was utilized to identify key environmental determinants influencing vector distribution. Climate data from WorldClim, future climate scenarios (SSP1-2.6, SSP2-4.5, SSP5-8.5), elevation data, and Human Footprint Index (HFP) were integrated to predict potential suitable habitats and future distributions (2041–2060) across China and Europe. Results: The key environmental drivers for P. okadai are warmest quarter precipitation, HFP, and temperature seasonality, and for P. variegata they are HFP, coldest quarter precipitation, and temperature annual range. Currently, the suitable habitats of P. okadai are concentrated in central, eastern, and northeastern coastal China, with only sporadic low-suitability patches recorded in Europe. P. variegata exhibits a wide distribution across the UK, France, Belgium, and Italy, with nearly the entire Mediterranean coastal belt and its associated offshore islands falling within its suitable range. Under future climate scenarios, the suitable area of P. okadai is projected to expand significantly in Central/Western Europe (Italy, Austria, Switzerland, and western Russia). In contrast, the suitable habitats of P. variegata will shift significantly: The central–southern–eastern European transitional belt will lose almost all suitable habitat across scenarios, while the Mediterranean littoral and its offshore islands remain climatically suitable. Conclusions: The suitable area for P. okadai is projected to increase significantly, whereas that for P. variegata is expected to decline. Temperature and precipitation emerge as primary drivers of these contrasting distribution shifts. These findings underscore the need for enhanced vector surveillance and control strategies for T. callipaeda , particularly regarding the expanding P. okadai populations in Europe.

Phortica okadai, a vector of Thelazia callipaeda, is associated with an increasing incidence of thelaziasis. The complex habitat and chemosensory system of P. okadai are critical for its proliferation and expansion. However, ultrastructural data across developmental stages remain limited. This study used scanning electron microscopy to examine the ultrastructure of P. okadai developmental stages, with a focus on head sensilla. The results showed that the eggs of P. okadai are dark brown and cylindro-oval. The larvae are vermiform, divided into 11 segments. The pupae are marked by a conspicuous respiratory tubercle, and the posterior spiracle contains three distinct spiracular slits. Among five types of sensilla (trichoid, intermediate, chaetica, coeloconic, and basiconic), coeloconic, intermediate, and trichoid sensilla were predominantly found on the antennae, while basiconic and chaetica sensilla were distributed on both the antennae and the maxillary palps of P. okadai. The analysis revealed that the absence of dorsal appendages on the eggs distinguishes P. okadai from D. melanogaster. Males have longer antennae and exhibit sexual dimorphism in the length of sensilla (ChII, TB, and LB). This study provides the first comprehensive ultrastructural characterization of P. okadai developmental stages and head sensilla, laying a foundation for species identification and olfactory system research.