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Ceratina strenua Smith, 1879
Ceratina metallica HS Smith, 1907; Zadontomerus metallica (H S Smith, 1907); Ceratina metallica

Life   Insecta   Hymenoptera   Apoidea   Apidae   Ceratina
Subgenus: Zadontomerus

Ceratina strenua Nimble Ceratina
© Copyright Hadel Go 2014-2015 · 9
Ceratina strenua Nimble Ceratina

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    Identification Tips: The female is unique among eastern Ceratina in that they have a tiny white or ivory mark at the very apical end of the front femur. This is often overlooked as it is so close to the white mark on the adjacent tibia. The other Ceratina species have the ends of the femur dark. Males are unique for there very tiny flange on T7, small size, and the white stripe on the front tibia runs the Entire length of the tibia.
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Ceratina strenua, female, back clean
© Copyright source/photographer · 9
Ceratina strenua, female, back clean
Ceratina strenua, female, foretibia maculation
Deana M. Crumbling · 9
Ceratina strenua, female, foretibia maculation

Ceratina strenua, female wh body
Deana M. Crumbling · 9
Ceratina strenua, female wh body
Ceratina strenua, female, parapsidal line
Deana M. Crumbling · 9
Ceratina strenua, female, parapsidal line

Ceratina strenua, female T1-3
Deana M. Crumbling · 9
Ceratina strenua, female T1-3
Ceratina strenua, female, tubercle
Deana M. Crumbling · 9
Ceratina strenua, female, tubercle

Ceratina strenua, female, ventral abd
Deana M. Crumbling · 9
Ceratina strenua, female, ventral abd
Ceratina strenua, female, cheek
Deana M. Crumbling · 9
Ceratina strenua, female, cheek

Ceratina strenua, mandibles
Deana M. Crumbling · 9
Ceratina strenua, mandibles
Ceratina strenua, female, dorsal thorax
Deana M. Crumbling · 9
Ceratina strenua, female, dorsal thorax

Ceratina strenua, female, mandible 2
Deana M. Crumbling · 9
Ceratina strenua, female, mandible 2
Ceratina strenua, face2
Deana M. Crumbling · 9
Ceratina strenua, face2

Ceratina strenua, female, tibia stripe
Deana M. Crumbling · 9
Ceratina strenua, female, tibia stripe
Ceratina strenua, female, face
Deana M. Crumbling · 9
Ceratina strenua, female, face
Overview
Reprinted with permission from: Mitchell, T.B. 1962 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 152.


FEMALE----- 5-6.5 mm.; general body color blue-green, antennae becoming brownish apically, clypeus with a median, oblong, ivory maculation; mandibles somewhat reddish; legs piceous, with some metallic reflections, the apical tarsal segments becoming testaceous; basal two-thirds of front tibiae with an outer, ivory maculation; mid and hind tibial spurs pale yellowish; tegulae yellowish-hyaline; wings subhyaline, veins testaceous to brownish; tubercles bright yellow in both sexes; cheeks slightly narrower than eyes; clypeus quite flat, the median length somewhat more than half the apical width; mandibles distinctly tridentate at apex; antennal segments 2-5 considerably broader than long; clypeus largely impunctate medially, with some irregular, scattered punctures on each side; face shining, an impunctate polished area below ocelli, punctures otherwise rather coarse but irregular, rather close on each side below, those in median area sparse in general, becoming closer above on vertex, close and fine on cheeks above, very sparse and minute below; thoracic punctures much finer than those on head, scutum quite sparsely punctate between notaulices, becoming rather closely punctate anteriorly and posteriorly; scutellum with fine, well separated punctures, those on pleura somewhat coarser but well separated; lateral faces of propodeum minutely and densely punctate, becoming more shallow and obscure but still close posteriorly, dorsal area narrowly striate along upper margin; punctures of abdominal terga fine, but deep and distinct, well separated medially on 2-4 where interspaces are considerably greater than diameter of punctures; pubescence entirely pale, very short and thin, somewhat more evident on thorax laterally, on legs, and on the more apical abdominal terga.

MALE—Length 4.5-5 mm.; general body color metallic blue-green, clypeus ivory except for the very narrow lateral margin, and labrum with a quadrate, median, ivory maculation; antennae brownish beneath, more piceous above; legs largely blackish, with metallic reflections, the apical tarsal segments becoming somewhat more brownish, front tibiae with an ivory stripe along outer margin nearly to tip; spurs pale yellow; tegulae testaceous-hyaline; wings hyaline, veins testaceous to brownish; tubercles bright yellow in both sexes; cheeks somewhat narrower than eyes; clypeus quite flat, median length somewhat less than apical width; mandibles with a small, subapical tooth on lower margin; segments 2 and 3 of flagellum much broader than long; clypeus nearly impunctate, punctures of face otherwise quite coarse but rather shallow, quite close below antennae, becoming somewhat deeper and not so close above, fine and sparse on cheeks below: thoracic punctures much finer than those on head, quite sparse on scutum medially, well separated on scutellum medially, quite close over most of pleura, very fine and close on lateral faces of propodeum, becoming more sparse, shallow and obscure posteriorly, dorsal face narrowly and finely striate along upper margin; discs of abdominal terga with rather fine but deep and distinct punctures, quite close in general but interspaces across median portion of 2 and 3 somewhat greater than diameter of the punctures; hind femora conspicuously angulate beneath, width at this point fully half the length; carina of tergum 7 very narrow, its median length nearly equal to the basal width; pubescence entirely pale, very short, thin and inconspicuous; apical margin of sternum 6 with a deep, median emargination bearing a pair of short but robust, peg-like processes, and a more median, minute pair which are only partially separated; sternum 7 and genital armature much as in calcarata (fig. 124).

DISTRIBUTION—New York to Georgia and Louisiana, March to September.

FLOWER RECORDS—Asclepias, Chrysanthemum, Fragaria, Geranium, Helianthus, Oenothera, Prunus, Rubus, Senecio and Vaccinium.

Names
Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
A. newhart  623 @ JRYB__SHEN (8)
Anacardiaceae  Rhus @ AMNH_BEE (4)
Apiaceae  Daucus carota @ AMNH_BEE (1)
Apocynaceae  Apocynum cannabinum @ AMNH_BEE (3)
Asteraceae  Aster @ AMNH_BEE (1)

Eupatorium capillifolium @ AMNH_BEE (1)

Helenium @ AMNH_BEE (3)

Senecio @ AMNH_BEE (8)

Solidago @ AMNH_BEE (4)
Brassicaceae  Lesquerella filiformis @ AMNH_BEE (7)
Fabaceae  Tephrosia virginiana @ AMNH_BEE (2)

Trifolium @ AMNH_BEE (1)
Geraniaceae  Geranium @ AMNH_BEE (2)
J. rykken  1029 @ JRYB__SHEN (11)

1072 @ JRYB__SHEN (1)

575 @ JRYB__SHEN (2)

670 @ JRYB__SHEN (1)

672 @ JRYB__SHEN (1)

715 @ JRYB__SHEN (1)

745 @ JRYB__SHEN (1)

746 @ JRYB__SHEN (1)

755 @ JRYB__SHEN (2)

832 @ JRYB__SHEN (1)
Lamiaceae  Pycnanthemum @ AMNH_BEE (2)
M.l. epps  808 @ JRYB__SHEN (1)
Ml. epps  808 @ JRYB__SHEN (3)
Onagraceae  Oenothera @ AMNH_BEE (1)
P. clifton  672 @ JRYB__SHEN (2)
Plantaginaceae  Penstemon hirsutus @ AMNH_BEE (1)
R. minor  808 @ JRYB__SHEN (4)
Ranunculaceae  Ranunculus @ AMNH_BEE (1)
Rhamnaceae  Ceanothus americanus @ AMNH_BEE (1)

Ceanothus @ AMNH_BEE (1)
Rosaceae  Crataegus @ AMNH_BEE (1)

Fragaria virginiana @ AMNH_BEE (2)

Prunus maritima @ AMNH_BEE (10)

Pyracantha @ AMNH_BEE (2)

Rubus @ AMNH_BEE (6)
Salicaceae  Salix @ AMNH_BEE (5)
Scrophulariaceae  Agalinis tenuifolia @ AMNH_BEE (1)
_  Sam @ PN- (1)

apple @ NLA (2)

blueberry @ NLA (12)

caneberry @ NLA (55)

cucurbit @ NLA (20)

pond edge @ NLA (1)

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Updated: 2017-10-22 22:02:07 gmt
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