Lesser Marbled Fritillary (Brenthis ino)

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2025 photographs highlighted in green. Click on any photograph to go to an enlarged picture, or simply scroll down the page.

15847_male_Doubs_04Jun09 41425_male_Hautes-Alpes_14Jul16 53994_male_Pyrénées-Orientales_12Jul25 53937_female_Pyrénées-Orientales_12Jul25
53968_female_Pyrénées-Orientales_12Jul25 8274_female_Vaud, Switzerland_20Jul07 27791_female_Doubs_24Jul11 15834_male_Doubs_04Jun09

Ino is similar to, but usually smaller than, the Marbled Fritillary (B. daphne) although ino seems to be less common and more generally found at altitude and often in damp regions. They are not too difficult to tell apart and the key distinguishing features are described on the daphne page. More challenging is the task of distinguishing between ino and the Twin-spot Fritillary (B. hecate), and the identification clues are given on the hecate page.

It is, however, rather unlikely that they fly together.

 

The upperside is a rather dull orange, even the male, but this is adequately compensated by the beautiful intricate underside.

 

 
ref sex

observations

alt. m
15847 M

a male, very fresh and orange, and showing the darker, more continuous, border compared to daphne. 15834 is the underside.

860
41425 M a rather dusky individual from high altitude in a location which unusually was not near water. 1960
53994 M a male, showing some slight signs of ageing, and slight loss of the left upf apex. It was from a high altitude location as were the two females on this page seen on the same day. 1820
53937 F a female, very fresh and I suspect from its behaviour that it had only just emerged as it sat motionless, presumably to dry its wings. Rather dusky in colour, but otherwise an immaculate specimen. 1820
53968 F   1820
8274 F

a female, quite pale and lightly marked and the continuous borders being only two thin unfilled black lines.

1440
27991 F a very heavily marked and rather suffused female, even allowing for the ageing. This was seen in the wetlands of Doubs. 1150
15834 M

a male, the underside of 15847.

860

 

15847_male_Doubs_04Jun09

 

41425_male_Hautes-Alpes_14Jul16

53994_male_Pyrénées-Orientales_12Jul25

53937_female_Pyrénées-Orientales_12Jul25

53968_female_Pyrénées-Orientales_12Jul25

8274_female_Vaud, Switzerland_20Jul07

 

27791_female_Doubs_24Jul11

 

15834_male_Doubs_04Jun09