This Blog contains Wildlife, Plants and Bird Photos from Walks, Safaris, Birding Trips and Vacations. Most of the pictures have been taken with my Nikon P900 and P950X cameras. Just click on any image for a larger picture. On the right column under the Blog Archive are the entries by date. Below that under Animal categories all the diffent species of Animals, Birds, Insects and Plants contained in the website are listed. Clicking on any entry will show all the entries for that species.
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Thursday, 19 May 2022
Wednesday, 18 May 2022
17-5-2022 MONTE CORONA, VALENCIA - ROSE SAWFLY (Arge ochropus)
Arge ochropus, the rose sawfly, is a species belonging to the family Argidae subfamily Arginae.
The adults grow up to 7–10 millimetres (0.28–0.39 in) long and can be encountered from April to May. The head and thorax are black, while the abdomen and wings are reddish orange. The larvae are yellow and bristly with black markings.
This species is very similar to Athalia rosae (Tenthredinidae), but in Arge ochropus the antennae are composed of three sections, the third of which is greatly elongated, while in Athalia rosae the antennae are composed of 10–11 items. Arge pagana is mainly black above.
This sawfly is present in Europe, Asia Minor, the Caucasus, Turkmenistan, Northern Iran and Western Siberia up to Lake Baikal. It has been introduced to the northeastern United States and Eastern Canada.
Adults feed of nectar and pollen on Tanacetum vulgare, Angelica sylvestris and Heracleum sphondylium. This species has two generations a year. The females lay about 16–18 eggs on the rose stems. Larvae feed on the leaves of some species of the genus Rosa, for example Rosa canina, Rosa majalis and Rosa pimpinellifolia.
Tuesday, 17 May 2022
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