Abstract
Uroleucon (Uromelan) helichrysi sp. n. (Hemiptera, Aphididae, Aphidinae: Macrosiphini) is established from Iranian apterous and alate viviparous females caught on Helichrysum sp. (Asteraceae) and preserved in the collection of the Natural History Museum (BMNH) in London. The number of setae on the first tarsal segments (5), the number of caudal setae (20 to 28), the presence of abdominal marginal tubercles on abdominal segments 2 to 4, and the size of the cells of the siphuncular reticulation (relatively small) allow the new species to be distinguished from other Palaeartic species of the subgenus Uromelan. Blackman and Eastop’s key to apterae on Helichrysum is modified to include the new species. urn:lsid:zoobank.org:pub:E2B89D59-05FD-4A9E-AD78-B3C302219A10
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