# Do moth flies spread disease?

**URL:** <https://boards.straightdope.com/t/do-moth-flies-spread-disease/447777>\
**Category:** Factual Questions\
**Created:** [May 2, 2008, 5:00pm UTC](https://boards.straightdope.com/t/do-moth-flies-spread-disease/447777 "2008-05-02T17:00:38Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![system](https://global.discourse-cdn.com/straightdope/original/2X/e/e489c3b7d8fce19c4b355dd4fc3f88cc39c34b87.png) [@system](https://boards.straightdope.com/u/system)\
**Post date:** [May 2, 2008, 5:00pm UTC](https://boards.straightdope.com/t/do-moth-flies-spread-disease/447777/1 "2008-05-02T17:00:38Z")

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I know house flies can, because they eat dung.  
But what about moth flies (aka drain flies)?  
They eat stuff in the sewer drains, I think. At least that’s where they breed.  
But some kinds of moths don’t eat at all, not having mouth parts, and just mate and die.  
Since I never see larvae, I don’t care about them, just the flying form.