Josh's Frogs

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Plastic Vented Insect Cup Lid


4.0 out of 5 stars


Quantity Available: 151126

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About This Product

Vented Insect Cup Lids from Josh's Frogs are perfect for fruit fly cultures, waxworm cultures, and as a top for many deli cups that require ventilation. These great quality lids are suitable for use with most deli cups. We recommend them for the following products:

8 oz.deli cup
16 oz. deli cup
32 oz. fruit fly cups

Vented Insect Cup Lids will NOT WORK with clear display deli cups.


This product ships to your doorstep. Most orders placed before 2pm ET on business days will ship out the same day.

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Customer Reviews

4.0 out of 5 stars

Based on 4 reviews

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3.0 out of 5 stars

Sometimes Great, Sometimes Terrible

If the ventilation holes are consistently small, these lids are the best around. But I did receive some with slightly larger holes than others. When the culture reaches the end of it's life, sometimes the last batch of flies are stunted enough to crawl right out the top through the holes. It wasn't fun to walk up to a counter covered in fruit flies to discover they were squeezing their way right through the holes.


5.0 out of 5 stars

Great product

No insects escape, these lids are great


5.0 out of 5 stars


The holes are consistent and doesn't let flies out.


3.0 out of 5 stars

Escape hatch

For the same price go for the other lids. These can allow flies to escape and seem flimsier overall.

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