| 4.039 ~ 0073 ~ Stigmella trimaculella ~ Black-poplar Pigmy | ||
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UK Status Resident. Widely distributed in England, but patchy & uncommon in Scotland & Wales. Montgomeryshire Status Discovered in Llanfyllin in the north of the county in 2019. Wingspan : M & F, 5-6mm. Confusion species Many species in this group are very similar. One of the best ways of separating them is to examine the type of leaf-mine. |
Flight time & Voltinity
(Bivoltine)  Habitat Wherever the foodplant is found. Foodplant Black poplar. Lifestage data Leaf miner. Eggs either side of leaf. Larva forms a slender gallery, later widening into a blotch. Pupa: orange to dark brown. |
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| Montgomeryshire photos | ||
 Photo by DHB, 1st Sept 2019, Llanfyllin Pic shows mines on black poplar |
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