Showing posts with label Macro. Show all posts
Showing posts with label Macro. Show all posts
Monday, August 8, 2016
Sunday, July 31, 2016
Monday, April 20, 2015
Thursday, February 26, 2015
Monday, February 23, 2015
Friday, February 20, 2015
Blue on yellow
Labels:
Blue-tailed Damselfly,
Damselflies,
Insects,
Ischnura elegans,
Macro,
Vrasna,
Βρασνά,
Έντομα
Wednesday, February 11, 2015
Wednesday, February 4, 2015
Portrait (Damselflies)
The portrait of a male Blue-tailed Damselfly. This damselfly is about 3 cm long, so for this shot I used for the first time all the extension tubes combined, 7mm, 21mm and 31mm. Notice the reddish dot between the compound eyes. This is the ocelli, it is an extra eye, only this eye is single and not compound!
Labels:
Almyros River,
Blue-tailed Damselfly,
Crete,
Damselflies,
Heraklion,
Insects,
Ischnura elegans,
Macro,
Odonata,
Αλμυρός Ποταμός,
Έντομα,
Ηράκλειο,
Κρήτη
Thursday, January 22, 2015
Wednesday, January 7, 2015
Tuesday, January 6, 2015
Monday, December 29, 2014
Saturday, December 27, 2014
Wednesday, December 24, 2014
Tuesday, December 23, 2014
Sunday, December 21, 2014
Insects - Shield Bug
Labels:
Bugs,
Carpocoris mediterraneus,
Crete,
Heraklion,
Insects,
Macro,
Shield Bugs,
Έντομα,
Ηράκλειο,
Κρήτη
Wednesday, December 17, 2014
Tuesday, December 16, 2014
Monday, December 15, 2014
Butterflies - Knapweed Fritilary (Πεταλούδες)
Fritilaries in my opinion are the among most beautiful, yet most difficult to identify, butterfly species. These Knapweed Fritilaries (Melitaea phoebe) were mating in late summer in Lake Volvi. After a while I met another individual with its wings spread and was able to photograph the upperside as well.
Labels:
Butterflies,
Insects,
Knapweed Fritilary,
Lake Volvi,
Macro,
Melitaea phoebe,
Βόλβη,
Πεταλούδες
Saturday, December 13, 2014
ID - Red veined Darter - Immature male VS female
A common problem when trying to identify odonata species (both Damselflies & Dragonflies) is that immature males of a species often look quite similar to mature females, which can become very misleading. The easiest way for a fast and accurate identification is the observation of reproductive structures, such as the male secondary genitalia and appendages or the female ovipositor or the vulvar scale. However, in many cases this becomes difficult due to their small size or a not so suitable angle between the subject and the observed. In this cases coloration might become a better index for the identification. Here I will try to point out some differences between immature male and mature female red veined darters (Sympetrum fonscolombii).
This is a mature female individual. The abdomen's coloration, with the two black stripes running the ventral part of the abdomen, is characteristic for the females.
A better view of the female abdomen.
Now this is how an immature male looks like. The general similarity with the female is more than obvious, however the specific pattern in the abdomen is missing. Moreover, if you give a better look under the base of the abdomen (S2) you will notice a slight "swelling" which is a male's reproductive structure enabling him to transfer sperm to the female, the so called secondary genitalia.
Eventually, the immature male will start to become mature and change his colour to red. This is how this procedures begins. As you can see the dorsal of the abdomen has already turned red, and the rest of the body will follow.
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