Species Anthomyia illocata

Classification · Synonyms and other taxonomic changes · Size · Identification · Range · Season · Remarks · Works Cited

Anthomyia pluvialis section (pluvialis section) - Anthomyia illocata

Root-Maggot Fly ? - Anthomyia illocata - female

Fly with stripe across thorax - Anthomyia illocata

Anthomyia (illocata?) - Anthomyia illocata - female

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Diptera (Flies)

No Taxon (Calyptratae)

Superfamily Muscoidea

Family Anthomyiidae (Root-Maggot Flies)

Genus Anthomyia

No Taxon (pluvialis section)

Species illocata (Anthomyia illocata)

Synonyms and other taxonomic changes

Anthomyia illocata Walker, 1856

Size

Body 4-6 mm, wing 4-5 mm

Identification

Broad, dark, postsutural transverse band on thorax, sometimes with edges indented, especially on female.

Dark area directly posterior to head, sometimes shaped into two small areas, but never like A. oculifera

Scutellum anteriorly black and posteriorly gray.

Hairs on arista much shorter than width of first flagellomere.

Range

e US, CA (TX-FL-MA-KS, CA) / Mex. to S. Amer. - Map (GBIF, BG data)

Native to Asia. Suwa (1987)(1) reviewing palaearctic Anthomyia gives distribution as "Japan; Korea; China; Oriental region." Griffiths did not mention the species in his 2001 revision of Nearctic Anthomyia and it was probably not widespread at that time, or not yet introduced.

Season

Mostly: Apt-Oct (BG data)

Remarks

First reported from North America in 2007 as an unidentified species of Anthomyia. At that time it was widespread in Florida and was probably introduced there within the past decade or two.

No North American species recorded by Griffiths(2) has a uniform transverse stripe on the mesonotum of the female. Of the species listed in the regional revisions of Ackland (1987, Oriental), Suwa (1987, east palaearctic), and Ackland (2001, Africa) none but A. illocata has the combination of nearly uniformly broad transverse stripe, two small spots over first dorsocentrals, and short hairs on arista.

Works Cited

1.	The genus Anthomyia in Palaearctic Asia (Diptera: Anthomyiidae) Suwa, Masaaki. 1987. Insecta matsumurana.

2.	Flies of the Nearctic region, Volume VIII: Cyclorrhapha II. (Schizophora: Calyptratae), Part 2: Anthomyiidae, No. 13 Griffiths, Graham C. D. 2001. Schweizerbart.

Contributed by John F. Carr on 11 December, 2011 - 8:28am
Additional contributions by Beatriz Moisset, Mike Quinn, zdanko
Last updated 7 October, 2022 - 12:26pm

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