Green Hairstreak (Callophrys rubi)

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2016 photographs highlighted in green. Click on any photograph to go to an enlarged picture, or simply scroll down the page.

31687_male_Var_14Apr13 32040_male_Var_8May13 9718_sex?_Var_12Apr08
9902_male_Var_21Apr08 15187_male_Var_11May09 19610_male_Var_15Apr10
20053_sex?_Var_10May10 29097_sex?_Var_4May12 37141_female?_Var_8May15

Rubi is a common early season butterfly, smaller than most hairstreaks. It tends to vary quite a lot in terms of the green colouration, from bluish to strongly yellowish (maybe partly due to ageing) and the white dots/lines (or lack of them). There seems to be virtually no visible difference between the sexes, perhaps except body shape where visible.

The only species rubi could be confused with is Chapman's Green Hairstreak (C. avis), a quite scarce and highly localised butterfly of the Mediterranean regions of France and Iberia. The principal differences between rubi and avis are described on the avis page.
ref sex

observations

alt. m
31687 M a male, based on its territorial pose. On studying the magnified image, the end of the foreleg appears to be hooked, which confirms that this is a male. Quite dark and a rather reflective green. 20
32040 M this could be considered to be a female based on the roundness of the hindwing at the anal angle, but on studying the magnified image, the end of the foreleg appears to be hooked, which confirms that this is a male. Rather yellow-green with well-defined red-brown borders. 480
9718 ?

a strong basal blue flush and strong discal line on both wings. This is supposedly an indictor for avis, but my feeling, based on limited experience, is that the avis line is usually continuous.

140
9902 M

by contrast, a rather golden underside. On studying the magnified image, the end of the foreleg appears to be hooked, which confirms that this is a male.

220
15187 M

possibly a male, based on hindwing shape. On studying the magnified image, the end of the foreleg appears to be hooked, which confirms that this is a male.

185
19610 M

quite dark and virtually unmarked. On studying the magnified image, the end of the foreleg appears to be hooked, which confirms that this is a male.

160
20053 ?

by contrast, a very light bright green colour, also virtually unmarked. Probably a female based on the visible body shape.

140
29097 ? a rather bluish-green ground colour. 185
37141 F? a fresh rubi with an appealing bluish unh basal flush. Possibly female based on what can be seen of the ends of the forelegs. 185

 

31687_male_Var_14Apr13

 

32040_male_Var_8May13

 

9718_sex?_Var_12Apr08

 

9902_male_Var_21Apr08

 

15187_male_Var_11May09

 

19610_male_Var_15Apr10

 

20053_sex?_Var_10May10

 

29097_sex?_Var_4May12

 

37141_female?_Var_8May15