Walkerella
Westwood, 1883
Walkerella is a of non-pollinating in the , Otitesellinae. It is the most widely distributed genus within its subfamily, with described from the Old World. Members are associated with Ficus fig trees, specifically species in subsection Conosycea of section Urostigma. Two new species were recently described from Xishuangbanna, China.
Pronunciation
How to pronounce Walkerella: /wɔː.kəˈrɛl.ə/
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Identification
Members of Walkerella can be distinguished from other Otitesellinae using morphological ; a key to all described is available in taxonomic literature. Specific diagnostic characters for the genus include features of the , mesosoma, and metasoma that separate it from related non-pollinating genera.
Habitat
Tropical and subtropical regions of the Old World. Associated with Ficus fig trees, particularly in subsection Conosycea of section Urostigma, subgenus Urostigma. Specimens have been reared from fig fruits.
Distribution
Old World distribution; most widely distributed of Otitesellinae. Documented from Xishuangbanna, China, with additional records suggesting presence in other tropical regions. GBIF records indicate occurrences in Florida, USA and Brazil, though these may represent introductions or data quality issues given the established Old World range.
Host Associations
- Ficus pisocarpa - Rearing record for Walkerella nigrabdomina
- Ficus curtipes - Rearing record for Walkerella curtipedis
- Ficus subsection Conosycea - Broader group association for
Life Cycle
Specimens are reared from fig fruits, indicating larval development occurs within the syconia (fig infructescences) of Ficus . emerge from mature figs.
Behavior
Non-pollinating that develop within fig fruits but do not act as of their Ficus .
Ecological Role
Member of the associated with Ficus ; occupies a non-pollinating role in the fig , likely as a -maker or .
Similar Taxa
- Other Otitesellinae generaWalkerella is distinguished from related within the same by morphological characters and its broad Old World distribution; other genera in Otitesellinae typically have more restricted geographic ranges.
More Details
Taxonomic history
The was established by Westwood in 1883. It currently contains six described world , with two new species added in 2013 from China.
Host specificity
Available evidence suggests association with Ficus subsection Conosycea, though broader ranges within Urostigma may exist given the 's wide distribution.