il ' ii - Northern Research Station - USDA Forest Service

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Table 2.raThe Palaearctic Myopitini
Genus No. of species Hosts Galls
Urophora _ About 60 Cardueae . flowerhead; 1 sp. in stem
Myopites About 12 Inula, Pulican'a flowerhead A
Asimoneura 1 Helichrysum? ? •
Nearomyia 1 ? ?
i
..
Based on Korneyev, personal Communication
.,
Sometimes together With the receptacle, of their Cardueae develop in flowerheads, but cecidogeny is known with
(Asteraceae) hosts. An interesting exception is U. cardui certainty for only a small number of them. Indiginous
Linnaeus, the type species, which galls the stems of its Myopitini are almost unknown from the Oriental and
hosts. Myopites species with known biology gall the Australasian regions.
flowerheads of their hosts (fig. 2), all of which belong to
j
Inula L., Pulicaria Gaertn. and possibly a few other, The Afrotropical fauna of Myopitini, in particular, has
related taxa. Common to both genera, and apparently been poorly studied. Although only seven species have
only to them, are the inclusion of the achenes in the gall; been described to date, the material I have collected or
the generally parallel orientation of the individual tunnels borrowed comprises at least an additional 40 species, all
and cells; and the emergence of each adult fly (or its undescribed. The composition of the fauna, including
parasitoids) singly through an opening in its individual the as-yet-undescribed taxa, and some of its attributes are
achene. Other members of the Myopitini, especially the presented in table 3.
rather numerous species of the New World fauna,
Figures l-2._Myopitine galls (actual diameter in parenthesis). Figure 1. Gall ofUrophora stylata on Cirsium
' pliyllocephalum (15mm). Figure 2. Gall ofMyopites stylata on Inula viscosa (8mm).