Smooth Hister Beetle vs Lesser House Fly

Side-by-side species comparison

Attribute Smooth Hister Beetle Lesser House Fly
Scientific Name Margarinotus striola Fannia canicularis
Order Coleoptera Diptera
Family Histeridae Fanniidae
Size 4-6 mm 5-7 mm
Habitat Indoors Indoors
Diet Dung Feeders Scavengers
Regions Europe, North Africa Worldwide
Conservation Least Concern Least Concern

Smooth Hister Beetle

A compact, highly polished black beetle with fine elytral striations. It is one of the most common dung-dwelling hister beetles in Europe.

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Did You Know?

Its almost mirror-like surface is so smooth that dung and debris slide off its body, keeping it permanently clean.

Lesser House Fly

A small greyish fly often seen flying in circles beneath ceiling lights indoors. It breeds in decaying organic matter and is a secondary forensic indicator.

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Did You Know?

Males are well known for hovering in a fixed triangular flight pattern beneath indoor light fixtures.