1. Understand the Species and Habitat
Pelecinobaccha species belong to the Syrphidae family, known for hovering behavior and mimicry of wasps or bees. They’re slender, often with a metallic sheen (e.g., cobalt in P. costata).
Adults feed on nectar and are attracted to small, shallow flowers like those in the Asteraceae (daisies) or Apiaceae (dill, yarrow) families. Look for them in gardens, meadows, woodlands, or near streams.
Larvae are predatory, feeding on scale insects or aphids, so areas with infested plants (e.g., shrubs or trees) may harbor them.
2. Timing
Hover flies are most active in warm, sunny weather, typically from late spring to early fall (May to September in temperate climates). Aim for late morning to early afternoon when temperatures are 70–85°F (21–29°C).
In colder months (like today, February 20, 2025, in many regions), they’re inactive or in diapause, so plan for warmer seasons.