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Native fasciatum halictid

Scientific Name
Lasioglossum (Chilalictus) fasciatum
Scientific Author
Walker, 1995
Taxonomy
(Hymenoptera: Halictidae: Halictinae: Halictini)
Status
Native Australian Beneficial Species
Reliability
High
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Diagnostic Notes
Lasioglossum (Chilalictus) fasciatum Walker, K. 1995. Revision of the Australian native bee subgenus Lasioglossum (Chilalictus) (Hymenoptera: Halictidae). Memoirs of the Museum of Victoria 55: 1–423 [124].

Type data: Holotype QM T 13906 ?, 14 km NW Kalgoorlie, WA [30º42'S 121º25'E].

Full description

Diagnosis: Like L. veronicae differing by metasomal colour banding. Both sexes head and mesosoma metallic green, metasoma with each tergite banded dark green anteriorly, light red-brown posteriorly. Female: Frons striate, mesoscutum polished, anteromesially open to closely punctate, posteromesially close to densely punctate, in parapsidal areas openly punctate, scutellum highly polished, dorsal surface of propodeum rugulosostriolate, defined by posterolateral carinae set well below dorsal level, T1 posterior marginal area impunctate, fore tibial spur fan shaped. Male: Antennae moderately short, (FL 1.50 x UIB), AS4 0.63 x shorter than AS2+3, antennal scapes and underneath of flagellum light yellow, mesoscutum brown with olive green tinge, tegulae and wing veins light yellow, legs yeilow, fore coxae wirh dense haie cover, fore trochanters with several long hairs, S2-S4 with short, semi-erect, plumose hair, forewings with 2nd r-m weaker than 1st r-m.

Remarks: Lasioglossum fasciatum is a metallic species collected commonly across the dry southern half of Australia. Macrocephalic males are present; however, the frequency of these forms is much less than in L.florale (Smith) and L. vitripenne (Smith). Gross macrocephalic development, as found in L. florale, has not been recorded in L. fasciatum. The vestiture of the male fore trochanters is an autapomorphy.

More Information
Specimen Contact
Museum Victoria
Author
Walker, K.
Created
27/07/2009 02:04 AEST
Last Updated
01/10/2011 17:44 AEST
Citation
Walker, K. (2009) Native fasciatum halictid (Lasioglossum (Chilalictus) fasciatum) Updated on 10/1/2011 5:44:40 PM 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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