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Native brunnesetum halictid

Scientific Name
Lasioglossum (Chilalictus) brunnesetum
Scientific Author
Walker, 1995
Taxonomy
(Hymenoptera: Halictidae: Halictinae: Halictini)
Status
Native Australian Beneficial Species
Reliability
High
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Diagnostic Notes

Lasioglossum (Chilalictus) brunnesetum Walker, K. 1995. Revision of the Australian native bee subgenus Lasioglossum (Chilalictus) (Hymenoptera: Halictidae). Memoirs of the Museum of Victoria 55: 1–423 [79].

Type data: Holotype ANIC ?, 4 mi[les] W Paluma, 3,000 ft, QLD [19º00'S 146º10'E].

Diagnosis. Brown vestiture on mesoscutum not found on any other species. Both sexes black. Female with frons striate, mesoscutum covered with short brown setae, densely punctate, dorsal surface of propodeum weakly ruguloso-striolate mesially, remainder striolate. Male with antennae moderately long (FL 2.0 x UID), AS4:AS2+3=1, mesoventral area with two small, apically pointed, posteriorly directed processes, S2 mesially with small, rounded process, S2-S3 with dense, slightly curved, plumose hair; forewings with 2nd r-m as strong as 1st r-m.

Remarks. Female specimens show a clinal size variation from north to south. The smallest specimen was recorded from Paluma, Queensland (4.85 mm) and the largest from Kingston, Tasmania (6.00 mm). Several males exhibit macrocephalic development through a broadened clypeus, produced and increased genal width, decreased interorbital distance and increased mandibular length.

More Information
Specimen Contact
Museum Victoria
Author
Walker, K.
Created
02/07/2009 06:41 AEST
Last Updated
16/07/2010 11:45 AEST
Citation
Walker, K. (2009) Native brunnesetum halictid (Lasioglossum (Chilalictus) brunnesetum) Updated on 7/16/2010 11:45:33 AM Available online: PaDIL - http://www.padil.gov.au.
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Free for use under the Creative Commons Attribution 3.0 Australia License

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