| Pachyrhinus lethierryi (Desbrochers des Loges, 1875) |
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Scientific name: Pachyrhinus lethierryi (Desbrochers des Loges, 1875) Common name: French name: Order: Coleoptera Family: Curculionidae Wingspan : 3.6 to 4.5 mm. Biotope: Close to host plants on which larvae feed on roots, that's to say Cypress (Cupressus spp), False Cypress (Chamaecyparis spp), Juniper (Juniperus spp) and Thuja spp. Notice that adults feed on shoots of the same plants but without causing important damage. Geographic area: Originated from the Mediterranean regions, Pachyrhinus lethierryi extends its range northwards since the 1970's. It is now found in the United Kingdom north to southern Scotland, in the Netherland, Germany, Asia Minor and Crimea. Observation period : Mid-April to July. |
Pachyrhinus lethierryi is a small bright green weevil showing a short and broad snout. The eyes are protruding. The body is covered by short and semi-erected hairs. There is a small bare band, appearing black, at the front of the snout between the antennae. The elytra show a small depression near the base. There are specimens with pinkish head and legs. This form is called lostiae but this is not listed as a subspecies. |
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The large Thuja that is growing in the yard of the farm explains the observation of Pachyrhinus lethierryi here. You can clearly see the short and broad snout with a small black area at the front and also the small depression close to the base of the elytra. |
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Here is the lostiae form observed at the same place as the previous weevil. |
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Here is another weevil observed at the same place. It has the particularity of having bare legs and a pinkish area at the back of the body. The shape of the snout and the bare area at the front made me list this one as Pachyrhinus lethierryi, I hope I am not wrong. |
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Upper side view. |
André Bon January 2022
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