Revision of the metallic Lasioglossum (Dialictus) of eastern North America (Hymenoptera: Halictidae: Halictini)
Author
Gibbs, Jason
text
Zootaxa
2011
2011-10-28
3073
1
216
journal article
31531
10.5281/zenodo.1049595
1a985cc7-af57-45e9-a988-c3beda3c15b4
1175-5326
1049595
B5AF6DF4-D3A7-4942-A94F-CC051D8074CF
The
Lasioglossum ruidosense
species-group
Species included.
Lasioglossum hemimelas
,
L
.
ruidosense
, and
L
.
versans
.
Diagnosis.
Members of the
L
.
ruidosense
species-group are easily recognised by the following combination of characters in addition to the subgeneric characters of
Dialictus
. Head and mesosoma dull metallic, mesoscutal punctures widely separated between parapsidal lines, mesepisternum granular-imbricate, metasomal terga dark brown.
Females
: T1 anterior surface with evenly distributed erect hairs but no appressed hair fan, propodeum
usually
with lateral carina short not reaching dorsal margin.
Males
: Gonocoxite basally much wider than gonobase, gonostylus with medially directed elongate hairs, penis valve with strong dorsal crest.
Distribution.
Alaska, east to Nova
Scotia
, south to high elevations in northern
Mexico
.