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Hylaeus sparsus (Cresson, 1869)
Prosopis sparsa Cresson, 1869; Prosopis thaspii Robertson, 1898; Prosopis potens Metz, 1911; Hylaeus (Metziella) potens (Metz, 1911); Hylaeus thaspii (Robertson, 1898)

Life   Insecta   Hymenoptera   Apoidea   Colletidae   Hylaeus
Subgenus: Metziella

Hylaeus sparsus FEM CFP f
© Copyright Laurence Packer 2014 · 7
Hylaeus sparsus FEM CFP f

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Hylaeus sparsus MALE-
© Copyright Laurence Packer 2014 · 7
Hylaeus sparsus MALE-
Hylaeus sparsus, U, Back, VA, Fairfax County ---.. ZS PMax
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Hylaeus sparsus, U, Back, VA, Fairfax County ---.. ZS PMax

Hylaeus sparsus, U, Back, VA, Fairfax County ---.. ZS PMax
© Copyright source/photographer · 5
Hylaeus sparsus, U, Back, VA, Fairfax County ---.. ZS PMax
Hylaeus sparsus, U, Face, VA, Fairfax County ---.. ZS PMax-Recovered
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Hylaeus sparsus, U, Face, VA, Fairfax County ---.. ZS PMax-Recovered

Hylaeus sparsus, U, Side, VA, Fairfax County ---.. ZS PMax
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Hylaeus sparsus, U, Side, VA, Fairfax County ---.. ZS PMax
Hylaeus sparsus, m, back, Shenandoah, VA ---.
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Hylaeus sparsus, m, back, Shenandoah, VA ---.

Hylaeus sparsus, m, face, Shenandoah, VA ---.
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Hylaeus sparsus, m, face, Shenandoah, VA ---.
Hylaeus sparsus, m, left side, Senandoah, VA ---.
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Hylaeus sparsus, m, left side, Senandoah, VA ---.

Hylaeus sparsus, f, back, Shenandoah, VA ---.. ZS PMax
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Hylaeus sparsus, f, back, Shenandoah, VA ---.. ZS PMax
Hylaeus sparsus, f, back, Shenandoah, VA ---.
© Copyright source/photographer · 5
Hylaeus sparsus, f, back, Shenandoah, VA ---.

Hylaeus sparsus, f, face, Shenandoah, VA ---.. ZS PMax UDR
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Hylaeus sparsus, f, face, Shenandoah, VA ---.. ZS PMax UDR
Hylaeus sparsus, f, face, Shenandoah, VA ---.
© Copyright source/photographer · 5
Hylaeus sparsus, f, face, Shenandoah, VA ---.

Hylaeus sparsus, f, left side, Shenandoah, VA ---.
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Hylaeus sparsus, f, left side, Shenandoah, VA ---.
Hylaeus sparsus, m, back, Shenandoah, VA ---.
© Copyright source/photographer · 5
Hylaeus sparsus, m, back, Shenandoah, VA ---.
Overview
Reprinted with permission from: Mitchell, T.B. 1960 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 141.


FEMALE—Length 6-7 mm.; black; antennae piceous above, ferruginous beneath; face marks yellow, subtriangular, not nearly filling space between clypeus and eyes, terminating acutely on eye margin at level of antennae; tubercles yellow; collar black; tegulae piceous; wings subhyaline, veins and stigma brownish; basal third of hind tibiae yellow, legs otherwise entirely dark; face broad below, eyes slightly convergent; facial foveae deep and distinct, linear, separated from eye by about an equal space, lower end above level of antennae, upper end slightly divergent from eye; basal segment of flagellum subequal to pedicel, 2nd segment much shorter, 3rd about as long as broad; cheeks very slightly broader than eyes in lateral view; front coxae acutely, triangularly produced on outer side, almost spinose; punctures coarse but shallow, well separated over clypeus and supraclypeal area, more close, fine and deep above antennae, becoming rather sparse and obscure on vertex, cheeks practically impunctate; punctures deep and distinct on thorax, separated by about equal spaces on scutum, more fine and sparse on scutellum, sparse on shining pleura; dorsal area of propodeum very short, surface mostly vertical, with a few inconspicuous basal rugosities; basal segment of abdomen shining, punctures exceedingly minute, sparse and obscure, following segments less shining, none with visible distinct punctures.

MALE—Length 6 mm.; black; antennae piceous above, ferruginous beneath, scape piceous with anterior rim yellow; tegulae piceous; wings very lightly infuscated, veins brownish; mandibles and labrum black; maculations yellow, as follows: entire face below antennae, lateral face marks abruptly truncate at level of antennae, line on scape, tubercles, anterior face of front tibiae, basal spot on mid tibiae, nearly basal half of hind tibiae, tibial spurs, and all basitarsi; the more apical tarsal segments reddish; collar and tegulae not maculated; face rather broad below; eyes less strongly convergent; cheeks and eyes about equal in width in lateral view; front coxae angulate on outer side, hardly spinose; thoracic punctures deep and distinct, on scutum inter- spaces about equal to diameter of punctures; pleura shining, punctures more sparse; very sparse on cheeks above and between eyes and ocelli; minute and quite sparse on basal segment of abdomen, becoming more close and obscure toward apex.

DISTRIBUTION — Quebec, Michigan, Illinois, New York, Pennsylvania, North Carolina and Texas; in June.

FLOWER RECORDS—Robertson (1929) records this species on Thaspium aureum trifoliatum, Osmorrhiza longistylis and Eulophus americanus. Two females collected in North Carolina have been compared with the type of sparsa from Pennsylvania and that of thaspii from Illinois and found to be the same.




Extracted from Studies on North American Bees of the Genus Hylaeus. 4. The Subgenera Cehalylaeus, Metziella and Hylaeana by Snelling, R.R. (1968)

Prosopis sparsa Cresson, 1869. Proc. Boston Soc. Nat. Hist., 12:271. ~. Prosopis thasp;; Robertson, 1898. Trans. Acad. Sci. St. Louis, 8:43. ~. Prosopis potens Metz, 1911 .. Trans. Amer. Ent. Soc., 37: 103. g. Prosopis modestus, Metz, 1911. Op. cit., p. 121, (in part). Hylaeus (Metziella) potens, Michener, 1942. Jour. N.Y. Ent. Soc., 50:2743; Mitchell, 1960. Tech. But 141, North Carolina Agr. Exp. Sta., p. 78. This species ranges from southeastern Canada to Georgia and westward to central Texas. Specimens which I have seen from Texas tend toward fuller maculae.


Identification
Generally this species has limited yellow or ivory on its face and pronotal collar and lobes, as well as at the knees. But on occasion, specimens of this species may be completely black. This species is most closely related to H. saniculae. Be careful when distinguishing between the two. Has a general big-headed appearance.

Reprinted with permission from: Mitchell, T.B. 1960 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 141.


The male of sparsus Cresson agrees reasonably well with the description of potens, but Metz does not mention the angulate or spinose character of the front coxae. This could have been an oversight, and if so, the two probably are the same. The genitalia and 7th and 8th sterna are the same, so far as the Metz figures would indicate. The type of potens has not been seen by the writer. The type locality is Montreal, Quebec.


Names
Scientific source:

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FamilyScientific name @ source (records)
J. rykken  554 @ JRYB__SHEN (1)

746 @ JRYB__SHEN (1)

869 @ JRYB__SHEN (2)

914 @ JRYB__SHEN (1)

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Updated: 2018-10-18 09:41:00 gmt
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