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 Alliopsis maculifrons
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| Johane |
Posted on 14-05-2020 15:09
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Member Location: Gothenburg, Sweden Posts: 1933 Joined: 27.08.13 |
Hi, does anyone know where I can find a description of Alliopsis maculifrons (Zetterstedt, 1838) or a key that includes this species?
Johan Ennerfelt |
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| John Carr |
Posted on 16-05-2020 14:12
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 Member Location: Massachusetts, USA Posts: 8941 Joined: 22.10.10 |
The original description, as Anthomyza maculifrons, is on page 672 of Insecta Lapponica at https://www.biodi...raphy/8242. If it's a purely Palaearctic species I don't have any modern works. |
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| Johane |
Posted on 16-05-2020 21:59
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Member Location: Gothenburg, Sweden Posts: 1933 Joined: 27.08.13 |
Thank you!
Johan Ennerfelt |
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| Johane |
Posted on 23-05-2020 10:36
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Member Location: Gothenburg, Sweden Posts: 1933 Joined: 27.08.13 |
I asked Verner Michelsen who sent me this identification key: Males 1 Vein C with a few v-setulae immediately distal to insertion of vein R1. Fore tibia with four apical setae in d, pd, p and pv position. Longest pv-setae of hind femur slightly exceeding depth of femur Alliopsis silvestris – Vein C with scattered v-setulae reaching far distal to insertion of vein R1. Fore tibia with three apical setae in d, p and pv position. Longest pv-setae of hind femur shorter than depth of femur 2 2 Longest aristal pubescense distinctly longer than basal diameter of arista. Male: Frons at narrowest point not exceeding width of ocellar tubercle Alliopsis silvatica – Longest aristal pubescense equal to basal diameter of arista. Male: Frons at narrowest point wider than ocellar tubercle Alliopsis maculifrons Females 1 Frons at narrowest point less than 1.5 times as broad as ocellar tubercle, with 0–1 pair of orbital setae. Fore tibia with 4 apical setae in d-, pd-, p- and pv-positions. Vein C with v-setulae barely extended distal to insertion of vein R1 Alliopsis silvestris – Frons at narrowest point at least 2 times as broad as ocellar tubercle, with 2 pairs of orbital setae. Fore tibia with only 3 apical setae, seta in pd-position absent. Vein C with v-setulae extended far beyond insertion of vein R1 2 2 Aristal pubescence distinctly longer than greatest basal diameter of arista. Fore tarsomeres 2–3 moderately expanded Alliopsis silvatica – Aristal pubescence no longer than greatest basal diameter of arista. Fore tarsomeres 2–3 strongly expanded Alliopsis maculifrons Johan Ennerfelt |
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