This destructive enemy of the housekeeper is evidently rapidly widening the area in Canada within which it occurs as a household pest. Strange to say, the species has been found abundantly on flowers out of doors in some localities where it has never been noticed inside houses. Twentyfive years ago many specimens were sent to me by a collector from Frot Mc Leod, N-W. T., and specimens are found in entomological collections in all parts of the Dominion.