Species Accounts

Meigenia mutabilis (Fallen, 1810)



Synonymsmutabilis (Fallen, 1810 - Tachina) [=floralis: authors, misident.] [=bisignata (Meigen, 1824 - Tachina)] [=parva (Macquart, 1850 - Masicera)]
Comments5mm, black&grey
Shaw & Ford (1991)-
Belshaw (1993)Lays unincubated eggs on the older larval stages of its host. Solitary, apparently killing supernumerary individuals with their mouthparts. Pupates in the empty integument of the host, which usually survives long enough to prepare its pupation cell in the soil or to spin its cocoon. Hosts: larvae of Chrysomeiidae (Coleoptera) and Athalia, mostly A.rosae (Hymenoptera: Symphyta: Tenthredinidae). In oviposition experiments found to prefer A.rosae to Chrysomelidae larvae (Pschorn-Walcher, 1969). Also a single questionable record from Hypera rumicis (Coleoptera: Curculionidae). In Britain: Chrysomelidae (Coleoptera) - Gastrophysa viridula (UMO), Phaedon cochleariae (NHM), Phaedon tumidulus (NMW), Phytodecta olivacea (NHM). Also recorded from unidentified Curculionidae (Coleoptera) on Chaerophyllum (NMW). Pyralidae (Lepidoptera) - Pleuroptya ruralis on Urtica (Hamm, 1942). Tenthredinidae (Hymenoptera: Symphyta) - Athalia ?liberta (NHM), Athalia cornubiae on Sedum album (UMO - also in Gradwell, 1957). British distribution: England, Wales and N.Scotland. Habitat: Emden (1954) gives woodland but this is unlikely as most of its British hosts feed on herbs. Flight period: late May to early September, 2 peaks - late May and late July (at least 50 records).
Tschorsnig & Herting (1994)Europe to Scandinavia; SH NS NW HE RP BW BY NB / A CH. Hedges bushes gardens deciduous forest edges. Mid April to Mid October several generations. On foliage or flowers; very frequent. Numerous Chrysomelidae however also Athalia spp. (Tenthredinidae).
JNCC review (1996)-
Shaw & Ford (2000)-
SubfamilyEXORISTINAE TribeBLONDELIINI
NBN code NBNSYS0000030181 BRC code 4503
StatusUnknown BENHS drawer2.3 25
* mapping provided courtesy of the National Biodiversity Network (NBN); all other content is copyright Chris Raper and respective authors/creators.

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