Lasioglossum (Dialictus) tenax (Sandhouse)

Gibbs, Jason, 2011, Revision of the metallic Lasioglossum (Dialictus) of eastern North America (Hymenoptera: Halictidae: Halictini), Zootaxa 3073, pp. 1-216: 196

publication ID

http://doi.org/ 10.5281/zenodo.1049595

publication LSID

lsid:zoobank.org:pub:B5AF6DF4-D3A7-4942-A94F-CC051D8074CF

persistent identifier

http://treatment.plazi.org/id/9A5987DB-A7D5-FF74-0A97-88CEFCAA0284

treatment provided by

Plazi

scientific name

Lasioglossum (Dialictus) tenax (Sandhouse)
status

 

Lasioglossum (Dialictus) tenax (Sandhouse)  

Halictus (Chloralictus) tenax Sandhouse, 1924: 15   . Ƥ.

Holotype. Ƥ USA, Colorado, Long Peak Inn, Colorado, 25.vi., (Cockerell); [ NMNH: 26406]. Examined. Halictus (Chloralictus) meritus Sandhouse, 1924: 19   . Ƥ.

Holotype. Ƥ USA, Colorado, Halfway House, Pikes Peak, 30.v., on Fragaria, (Cockerell)   ; [ NMNH: 26415]. Examined. Dialictus disabanci Knerer and Atwood, 1966 a: 882   . Ƥ 3.

Holotype. Ƥ CANADA, Ontario, Pearl, Thunder Bay Dist., 20.viii. 1963 on Anaphalis, (G. Knerer)   ; [ ROM: 83869].

Examined.

Taxonomy. Michener, 1951: Lasioglossum (Chloralictus) meritum   , p. 1115, L. (C.) tenax   , p. 1118 (catalogue); Hurd, 1979: Dialictus disbanci   ( lapsus calami   ), p. 1966, D. meritus   , p. 1968, D. tenax   , p. 1972 (catalogue); Moure & Hurd, 1987: Dialictus disabanci   , p. 99, D. meritus   , p. 112, D. tenax   , p. 134 (catalogue); Gibbs, 2010 b: Lasioglossum (Dialictus) tenax   Ƥ 3, p. 329 (redescription, key, synonymy).

Diagnosis. Female L. tenax   can be recognised by the following diagnostic combination: mesepisternal punctures distinct, mesoscutal punctures dense laterad of parapsidal line, head and mesosoma usually bluish, mesoscutal pubescence dull white, T 1 acarinarial fan without dorsal opening, and apical impressed areas of metasomal terga impunctate. They are most similar to L. cattellae   , which has head and mesosoma golden green and mesoscutal pubescence yellowish.

Male L. tenax   can be recognised by the following diagnostic combination: head wide to round (length/width ratio = 0.96–1.02); mesoscutum dull, punctures relatively coarse, sparse between parapsidal lines (i= 1–2 d); mesepisternum punctate or rugulose; tegula reddish brown; tarsi brownish yellow; and metasomal terga with basolateral tomentum, impunctate on apical half (except along premarginal line).

Range. Newfoundland west to Alaska, south to Colorado, Utah, and North Carolina along the Appalachian mountains. USA: AK, CO, NC, NH, UT, WI, WY. CANADA: AB, BC, NB, NF, NT, ON, PQ, SK, YT.

DNA Barcode. Available. Multiple sequences.

Comments. Rare in the eastern USA. Lasioglossum tenax   has an alpine/boreal distribution.

Lasioglossum tenax   is evidently a solitary species (Packer 1994).

NMNH

Smithsonian Institution, National Museum of Natural History

ROM

Royal Ontario Museum

DNA

Department of Natural Resources, Environment, The Arts and Sport

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Halictidae

Genus

Lasioglossum

Loc

Lasioglossum (Dialictus) tenax (Sandhouse)

Gibbs, Jason 2011
2011
Loc

Halictus (Chloralictus) tenax

Sandhouse 1924: 15
1924