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Leaf galls on acacia
Cecidomyiidae
-33.9609, 148.964
Field Notes
Description:
Each about 4mm diameter these galls were clustered in on a few of the outer leaves of a very young acacia. Like tiny apples they even had the apple-like indentation with bulging lobes at their outer ends, some of which seemed to show a small opening.
Habitat:
The acacia was growing from very tough, yellow sedimentary rocks on a tiny island in the middle of a lake in a state nature reserve. Very poorly nourished soils.
Notes:
Each gall has one small pale pink larva inside... http://bushcraftoz.com/forums/showthread.php?1346-Acacia-parramattensis…) <br>
http://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:afd.taxon:04… <br>
Abstract from Australian Journal of Entomology, May 15, 2012 - "A new species of gall midge, Austroacacidiplosis botrycephalae Kolesik gen. et sp. n. induces conspicuous spherical, often red coloured, galls on leaves of Acacia deanei (R. T. Baker), Acacia decurrens Willd., Acacia baileyana F. Muell. and Acacia dealbata Link in south-eastern Australia. A new genus is erected to contain the new species. Austroacacidiplosis belongs to the tribe Cecidomyiini and its closest relative is Acacidiplosis Gagné, an African genus containing species that induce galls on leaves and flower buds of acacias in Kenya." - thanks John La Salle
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