Lasioglossum (Dialictus) anomalum (Robertson)

Gibbs, Jason, 2011, Revision of the metallic Lasioglossum (Dialictus) of eastern North America (Hymenoptera: Halictidae: Halictini), Zootaxa 3073, pp. 1-216 : 44-45

publication ID

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

publication LSID

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

persistent identifier

https://treatment.plazi.org/id/9A5987DB-A73D-FF9B-0A97-8EB8FD4504AE

treatment provided by

Plazi

scientific name

Lasioglossum (Dialictus) anomalum (Robertson)
status

 

Lasioglossum (Dialictus) anomalum (Robertson)

Halictus anomalus Robertson, 1892: 272 . Ƥ.

Lectotype. Ƥ USA, Illinois, Macoupin Co., Carlinville, 19.v. 1891 (C. Robertson); [ INHS: 11111] by W. E. LaBerge (in Webb 1980). Examined.

Taxonomy. Robertson, 1902 a: Dialictus anomalus 3, p. 48 (description); Sandhouse, 1923: Dialictus anomalus , p. 193 (key); Michener, 1951: Lasioglossum (Dialictus) anomalum , p. 1119 (catalogue); Mitchell, 1960: Dialictus anomalus Ƥ 3, p. 379 (redescription, key); Krombein, 1967: Lasioglossum (Dialictus) anomalum , p. 462 (catalogue); Hurd, 1979: Dialictus anomalus , p. 1964 (catalogue); Moure & Hurd, 1987: Dialictus anomalus , p. 89 (catalogue); Gibbs, 2010 b: Lasioglossum (Dialictus) anomalum Ƥ 3, p. 66 (redescription, key).

Diagnosis. Both sexes of L. anomalum can be recognised by the absence of vein 1 rs-m resulting in two submarginal cells. Some individuals of L. lionotum also have two submarginal cells but are easily distinguished by their parasitic characteristics (see diagnosis for L. lionotum below). Lasioglossum anomalum are small, with mesoscutal punctures sparse between parapsidal lines, mesepisternal with contiguous punctures, T 2 impunctate on apical half (except along premarginal line), and metasomal terga without tomentum. Male L. lionotum have the flagellomeres short (length/width ratio = 1.09–1.25), and gonostylus with elongate, medially directed hairs.

Range. Ontario west toColorado, south to Alabama. USA: AL, CO, CT, GA, IL, IN, IA, MA, MI, MN, MO, NC, NE, NY, VT, WI. CANADA: ON.

DNA Barcode. Available. Multiple sequences.

Comments. Common. Gibbs (2010 b) reported a less southerly range for L. anomalum but additional material has since been identified from CUIC.

Lasioglossum anomalum is the type species for Dialictus .

Several individuals of L. anomalum with three submarginal cells in one or both wings have been examined ( Gibbs 2010 c), including one of the paratypes at INHS.

INHS

Illinois Natural History Survey

DNA

Department of Natural Resources, Environment, The Arts and Sport

CUIC

Cornell University Insect Collection

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Halictidae

Genus

Lasioglossum

Loc

Lasioglossum (Dialictus) anomalum (Robertson)

Gibbs, Jason 2011
2011
Loc

Halictus anomalus

Robertson 1892: 272
1892