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Sunday
Aug082021

Dufouria chalybeata

DateSun 2021-08-08

Dufouria chalybeata (Diptera: Tachinidae) is a small shiny-black Tachinid flies that parisitises the larvae of Cassida sp beetles. See here for photos I took of one attacking its host back in 2011.

Belshaw, 1993 gives for them: "Flight period: early June to early July (at least 50 records). 1 generation per year".

The above diagram shows the relative number of specimens I have collected each month since 2014. The flight period has quite clearly moved forward a month  and a second generation has appeared in October and November.

AuthorTristram Brelstaff | CommentPost a Comment |
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