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Native castor halictid

Scientific Name
Lasioglossum (Chilalictus) castor
Scientific Author
Walker, 1995
Taxonomy
(Hymenoptera: Halictidae: Halictinae: Halictini)
Status
Native Australian Beneficial Species
Reliability
High
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Diagnostic Notes
Lasioglossum (Chilalictus) castor Walker, K. 1995. Revision of the Australian native bee subgenus Lasioglossum (Chilalictus) (Hymenoptera: Halictidae). Memoirs of the Museum of Victoria 55: 1–423 [92].

Type data: Holotype NMV T - 15544 f, 39 km NNW Gingin WA [31º01'S 115º55'E].

Diagnosis. Most like L. pollux. Both sexes black. Female with frons reticulate/striate, mesoscutum shining, densely punctate, dorsal surface of propodeum coarsely ruguloso-striolate, not defined by carinae, T1 with median lateral tomentose hair tufts, BP narrowed, acutely pointed. Male with antennae moderately long, AS4:AS2+3=1.2, S2-S4 with sparsely hirsute, S5-S6 almost glabrous, pygidial plate rounded, forewings with 2nd r-m as strong as 1st r-m.

Remarks. The females of L. castor, L. pollux and L. pulvitectum are indistinguishable, although, the three species can be separated on their known distributions: L. pollux and L. castor in northern and southern Western Australia respectively and L. pulvitectum in the eastern states. In many female specimens, the hair tufts have a ``wet`` appearance, adhering to the tergite and are therefore difficult to see. The males of the three species provide useful characters to aid separation.
More Information
Specimen Contact
Museum Victoria
Author
Walker, K.
Created
11/06/2009 10:38 AEST
Last Updated
01/10/2011 17:44 AEST
Citation
Walker, K. (2009) Native castor halictid (Lasioglossum (Chilalictus) castor) Updated on 10/1/2011 5:44:30 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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