This study validates an innovative entomological traffic-light technique for stratifying Aedes aegypti vector risk at city block level in Camagüey, Cuba's Ignacio Agramonte Health Area (2023), amid arbovirus resurgence. Ten Hygiene and Epidemiology experts (average 26.4 years' experience) participated in three anonymous Delphi rounds, achieving high competence (K=0.92). Round 1 confirmed practical experience dominance (Ka=0.94). Round 2 evaluated entomological competence, management tools (including GIS), and stratification utility. Round 3 assessed clarity, bioecological coherence, feasibility, validity, and acceptability via Likert scales, with unanimous endorsement (100%) across dimensions. The technique integrates House/Breteau Indices, recurrent city blocks, and female mosquito physiological age for rapid decisions (green: routine surveillance; red: intensive intervention), aligning with Cuban standards. It enhances GIS compatibility, requires minimal training, and surpasses traditional methods in sensitivity/specificity, optimizing limited resources and intersectoral coordination. Limitations include training gaps (30%) and insufficient causal/seasonal analyses. In conclusion, expert validation confirmed its content validity, operational relevance, and high acceptability as an innovative tool for Ae. aegypti risk stratification, with unanimous specialist agreement. This proposal optimizes limited resources, supports GIS-integrated community decisions, and outperforms traditional methods, strengthening vector surveillance against arbovirus re-emergence. Implementation is recommended with ongoing training and causal-seasonal analysis for national sustainability and transferability.