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Lasioglossum arcanum (Sandhouse, 1924)
Halictus (Chloralictus) arcanus Sandhouse, 1924; Dialictus arcanus (Sandhouse, 1924)

Life   Insecta   Hymenoptera   Apoidea   Halictidae   Lasioglossum
Subgenus: Dialictus


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Identification
Extracted from: Sandhouse G. A. New North American Species of Bees Belonging to the Genus Halictus (Chloralictus). No. 2532 - Proceedings U.S. National Museum. Vol. 65, Art. 19.

Lasioglossum Arcanum appears in this excerpt as the now synonymized Halictus Arcanus.

Female,.—About 6 mm. long; head and thorax blue-green ; abdomen black; pubescence white. Facial quadrangle longer than broad; orbits converging quite sharply below; face covered with rather sparse pubescence; antennae very dark brown, almost black, hardly paler beneath ; front closely pimctured ; sides of face with scattered, outward opening punctures; supraclypeal area and upper half of clypeus with a brassy tinge, sparsely punctured; lower half of clypeus blacky coarsely punctured, fringed with yellowish hairs; mandibles red. Thorax clothed with moderately dense white hairs, more abundant on the sides; mesothorax shining, microscopically lineolate, the punctures about the diameter of a puncture apart; scutellum microscopically tessellate, opaque, with deep punctures; disk of propodeum crescentic, polished posteriorly, rugae almost parallel on the lateral portions of disk, anastomosing medially; truncation not sharply defined but distinct laterally; tegulae red-testaceous, impunctate. Abdomen, obovate, impunctate, without distinct hair bands, but segments covered with white subappressed hairs; first abdominal segment punctured on the median portion, the second segment punctured on the base; segments 1-2 sparsely pubescent. Wings clear; anterior wing 4.5 mm. long; stigma and nervures pale testaceous; second submarginal cell higher than broad, receiving the first recurrent nervure near the apex; third submarginal rather gently contracted above, about one and one-half times as long as second on marginal. Legs black with dull white hairs; hind spur pectinate with four moderately long teeth.


Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Asteraceae  Wyethia scabra @ BBSL (1)
Brassicaceae  Stanleya pinnata @ BBSL (9)
Cactaceae  Opuntia basilaris @ BBSL (1)

Opuntia erinacea @ BBSL (5)

Opuntia sp @ BBSL (1)
Capparaceae  Cleome serrata @ BBSL (1)
Hydrophyllaceae  Phacelia rafaelensis @ BBSL (8)
Loasaceae  Mentzelia multiflora @ BBSL (1)
Onagraceae  Camissonia multijuga @ BBSL (3)
_  Withheld @ BBSL (10)

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Updated: 2024-03-29 06:28:42 gmt
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