A catch is data. Before counting, look at what is in the basket: the mix of species tells you which part of the site is producing mosquitoes, and whether the trap is positioned for the species the customer actually cares about.
Aedes aegypti and Aedes albopictus are day biters that breed in domestic containers — vases, tyres, tanks, blocked gutters. A trap that catches mostly Aedes is usually close to a breeding site, and the fix is often source reduction rather than more hardware.
Culex quinquefasciatus is a night biter that breeds in drains and polluted standing water. A Culex-heavy catch near a drain line is expected, and moving the trap away from the drain will not remove the population — it will just reduce the catch.
Anopheles tends to appear near larger water bodies and irrigation. Mansonia near aquatic vegetation. Neither is solved by a single unit; both are reasons to talk about the site rather than the product.
Practical habit: empty the basket at the same time each morning, note the species mix for a week, and change one variable at a time. That is a better optimisation loop than buying a second trap.