Lasioglossum (Dialictus) lionotum (Sandhouse)

Gibbs, Jason, 2011, Revision of the metallic Lasioglossum (Dialictus) of eastern North America (Hymenoptera: Halictidae: Halictini), Zootaxa 3073, pp. 1-216 : 136-137

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-A791-FF3F-0A97-8EF8FA4704F6

treatment provided by

Plazi

scientific name

Lasioglossum (Dialictus) lionotum (Sandhouse)
status

 

Lasioglossum (Dialictus) lionotum (Sandhouse)

Dialictus lionotus Sandhouse, 1923: 194 . 3.

Holotype. 3 USA, Colorado ( Baker); [ NMNH]. Examined.

Paralictus asteris Mitchell, 1960: 446 . Ƥ 3. [new synonymy]

Holotype. Ƥ USA, North Carolina, Cliffs of the Neuse State Park, Wayne Co., 21.x. 1955; [ NCSU].

Taxonomy. Michener, 1951: Lasioglossum (Dialictus) lionotum , p. 1119; Krombein, 1967: Lasioglossum (Paralictus) asteris , p. 467 (catalogue); Hurd, 1979: Dialictus lionotus , p. 1968; Paralictus asteris , p. 1974 (catalogue); Moure & Hurd, 1987: Dialictus lionotus , p. 111; Paralictus asteris , p. 142 (catalogue); Gibbs, 2010 b: Lasioglossum (Dialictus) asteris Ƥ 3, p. 69 (redescription, key).

Diagnosis. Female L. lionotum can be recognised by the following diagnostic combination: size small (4.0– 4.6 mm); gena wider than eye; labrum flat, dorsal keel absent; mandible without preapical tooth; pronotal ridge sharply angled, dorsolateral angle acute to orthogonal; scopa absent; and metapostnotum smooth without evident rugae.

Male L. lionotum can be recognised by the following diagnostic combination: size small (4.2–4.5 mm; head width 1.15–1.22 mm); lower paraocular area with sparse tomentum; antennal sockets very widely separated (IAD/OAD> 2.0); pronotal collar strong; mesepisternum imbricate, obscurely punctate; and vein 1 rs-m sometimes incomplete or absent. They are most similar to the male of L. cephalotes , which is much larger in size (head width 1.54 mm).

Range. Ontario south to Alabama, west to Colorado. USA: AL, CO, DC, KS, MD, MO, NJ, NY, SC, VA, WV. CANADA: ON.

DNA Barcode. Available. Multiple sequences.

Comments. Uncommon.

Lasioglossum lionotum is a social parasite of L. imitatum ( Wcislo 1997; as Paralictus asteris ).

The holotype of L. lionotum was recently found in the research collection of George Eickwort at Cornell University. The head is missing but the specimen clearly matches the species commonly known as L. asteris . The original description includes few details about the head but does draw attention to the unusually short eyes which is consistent with L. asteris .

NMNH

Smithsonian Institution, National Museum of Natural History

NCSU

North Carolina State University Insect 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) lionotum (Sandhouse)

Gibbs, Jason 2011
2011
Loc

Paralictus asteris

Mitchell 1960: 446
1960
Loc

Dialictus lionotus

Sandhouse 1923: 194
1923