Joint night and catch limits gave no clear warmth link to moth richness in four British samples in 1992-2015

We tested whether monthly warmth links to caught moth richness remained after we fixed both night count and individual count. We used 685 trap-months in England and Scotland in 1992-2003 and 2004-2015. We sampled ten observed nights and calculated expected richness at 50 individuals, conditional on enough catch. The four warmth slopes were +0.21, +0.46, -0.08 and +0.03 taxa per C. All four corrected intervals included zero. Direct differences from all-night richness at 50 individuals also had intervals across zero. This does not show equal responses or no warmth effect. Ten-night sample retention varied from 3.5 to 100 percent. High-retention checks reduced the sample and remained uncertain. Missing nights, coarse weather, sparse Scottish records and catch selection limit inference. The records overlap prior campaign studies. We supply code, exact input hashes, aggregate evidence and a simulation audit. No pollution or causal climate-change effect is tested.