Comparisons of numbers of Heliothis armigera moths, caught in a light trap at ICRISAT Center (17°N 78°E), with wind direction has provided circumstantial evidence for windborne migration in India. The evidence is less convincing than that from northern Europe, possibly because flying populations are present around the trap throughout the year, although varying greatly in numbers between seasons. Comparisons were made for occasions when trap catch rose or fell over four successive nights with a correlation coefficient ≥0.9 and rate of catch change > 1 moth/night. Catch rises were used from only those parts of the lunar cycle when falls would be expected, and catch falls from those parts when rises would be expected. During the period May 1977 to December 1983 there were 23 rises and 16 falls. Rises occurred mostly during the seasons of maximum catch. All seven rises in February–April occurred with southeasterly winds, even though such winds blow on average only half the time in those months. These rises sometimes coincided with onset of southeasterlies; at other times there was a lag, consistent with flight from distant sources. Similar migrations seem possible in October–December, sometimes in the presence of cyclones over the Arabian Sea. The evidence for migration in August at ICRISAT, and in all seasons at ICRISAT Sub-Center, Hisar (29°N 76°E), is inconclusive.