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Halictus parallelus Say, 1837
Halictus occidentalis Cresson, 1872

Life   Insecta   Hymenoptera   Apoidea   Halictidae   Halictus
Subgenus: Nealictus

Halictus parallelus, Sweat Bee male
© Copyright Sheryl Pollock 2011 · 9
Halictus parallelus, Sweat Bee male

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Halictus parallelus, Mid-Atlantic Phenology
© Copyright source/photographer · 9
Halictus parallelus, Mid-Atlantic Phenology
Halictus parallelus, Sweat Bee male
© Copyright Sheryl Pollock 2011 · 8
Halictus parallelus, Sweat Bee male

Halictus parallelus FEM mm .x ZS PMax
© Copyright Laurence Packer 2014 · 7
Halictus parallelus FEM mm .x ZS PMax
Halictus parallelus MALE mm .x ZS PMax
© Copyright Laurence Packer 2014 · 7
Halictus parallelus MALE mm .x ZS PMax

Halictus parallelus, Sweat Bee Male
© Copyright Sheryl Pollock 2011 · 7
Halictus parallelus, Sweat Bee Male
Halictus parallelus, Sweat Bee female
© Copyright Sheryl Pollock 2011 · 6
Halictus parallelus, Sweat Bee female

Halictus confusus, sweat bee
© Copyright Sheryl Pollock 2011 · 2
Halictus confusus, sweat bee
Halictus parallelus, sweat bee
© Copyright Sheryl Pollock 2011 · 1
Halictus parallelus, sweat bee

Halictus parallelus
Tracy Zarrillo · 1
Halictus parallelus
Halictus parallelus, Barcode of Life Data Systems
Barcode of Life Data Systems · 1
Halictus parallelus, Barcode of Life Data Systems

Halictus parallelus, 17679 propodeum
© USDA Bee Biology and Systematics Laboratory, Logan Utah · 1
Halictus parallelus, 17679 propodeum
Halictus parallelus, bbSL203189 wing edited
© USDA Bee Biology and Systematics Laboratory, Logan Utah · 1
Halictus parallelus, bbSL203189 wing edited

Halictus parallelus, bbSL203191 face
© USDA Bee Biology and Systematics Laboratory, Logan Utah · 1
Halictus parallelus, bbSL203191 face
Halictus parallelus, female, face
© John B. Pascarella, Valdosta State University, Georgia · 1
Halictus parallelus, female, face
Overview
FEMALE—Length 12-13 mm.; black; pubescence short, whitish on head and abdomen, more yellowish on thorax and legs; head very slightly broader than long; eyes subparallel; clypeus somewhat protuberant, but projecting very slightly below suborbital line; cheeks considerably broader than eyes; vertex broad, space between lateral ocelli and margin of vertex subequal to that between ocelli and eyes; puncturation in general rather fine and close, that on upper portion of face deep, distinct, fine and close, becoming somewhat more widely separated below and on clypeus, very fine, close and indistinct on cheeks, becoming distinct and definitely separated but rather close on vertex, the scutum dull between the close, fine punctures, these becoming crowded laterally; pleura subrugose, without distinct punctures, and abdominal terga very finely and closely punctate throughout; disc of propodeum very finely rugose; wings lightly infuscated basally, becoming quite deeply so apically, veins and stigma ferruginous; tegulae yellowish-ferruginous anteriorly, becoming more piceous posteriorly; legs dark in general, the more apical tarsal segments becoming reddened; hind basitibial plate pointed apically; apical fasciae entire, white, that on basal tergum somewhat narrowed medially.

MALE—Length 10-11 mm.; general body color black; length and breadth of head about equal; eyes very slightly convergent below; clypeus very slightly protuberant and projecting very slightly below suborbital line, largely yellow, but basal margin on each side somewhat blackened; mandibles yellowish medially, darkened basally and apically; lab- rum yellow; cheeks very slightly broader than eyes; vertex broad, space between lateral ocelli and margin of vertex subequal to that between ocelli and eyes; flagellum ferruginous beneath, basal segment nearly equalling second and following segments in length, puncturation quite uniform and distinct but close and rather fine, the pleura finely rugose; disc of propodeum very finely rugose medially, becoming obscurely striate laterally; wings lightly infuscated, becoming somewhat darker apically, veins and stigma ferruginous; tegulae yellowish-hyaline anteriorly, becoming more reddish posteriorly; coxae and trochanters dark, femora mainly ferruginous but somewhat darkened basally, tibiae ferruginous but with a narrow, outer, yellowish stripe, tarsi entirely yellowish; abdominal fasciae white, narrow or sub- interrupted medially on the more basal terga; sternum 5 straight apically, 6 rather broadly rounded; gonostyli strongly compressed, subangulate ventrally, apex prolonged into a narrowly triangular process which is quite densely setose and with a rounded dorsal lobe which is fringed with curved setae, inner surface with a tuft of five or six robust curved setae; dorsal surface of penis valves very deeply grooved.

DISTRIBUTION—New Jersey to Florida, west to Montana, New Mexico and Texas, March to November.

FLOWER RECORDS—Aster, Brassica, Ceanothus, Cephalanthus, Chamaecrista, Gypsophila, Melilotus, Ranunculus, Rhus, Rubus and Taraxacum. Robertson (1929) records parallelus on the following additional genera: Amorpha, Astragalus, Blephilia, Boltonia, Castalia, Cicuta, Cornus, Eryngium, Eulophus, Heracleum, Krigia, Ludwigia, Lycopus, Nelumbo, Nepeta, Oenothera, Pastinaca, Petalostemon, Polygonum, Pycnanthemum, Rudbeckia, Sambucus, Symphoricarpus, Trifolium, and Zizia.

Identification
Compared to the other Eastern species the wings in this species can be quite dark, noticable to the naked eye.

Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Anacardiaceae  Rhus glabra @ AMNH_BEE (1)

Rhus @ AMNH_BEE (2)
Asteraceae  Helianthus anomalus @ BBSL (1)

Solidago @ AMNH_BEE (1)
Brassicaceae  Descurainia pinnata @ AMNH_BEE (1)
Fabaceae  Amorpha canescens @ AMNH_BEE (2); RUAC_ENT (1)

Dalea candida @ AMNH_BEE (6)

Mimosa microphylla @ AMNH_BEE (1)
Geraniaceae  Geranium maculatum @ AMNH_BEE (1)
K. kingsley  1063 @ JRYB__SHEN (1)
Lamiaceae  Pycnanthemum sp @ BBSL (1)

Pycnanthemum @ AMNH_BEE (4)
Rubiaceae  Diodia teres @ AMNH_BEE (1)
_  Withheld @ BBSL (4)

blueberry @ NLA (1)

caneberry @ NLA (3)

cucurbit @ NLA (18)

strawberry @ NLA (6)

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Following served from Sean McCann, BugGuide, bugguide.net
   
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Updated: 2019-08-25 14:04:23 gmt
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