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Hylaeus cookii (Metz, 1911)
Prosopis cookii Metz, 1911

Life   Insecta   Hymenoptera   Apoidea   Colletidae   Hylaeus
Subgenus: Paraprosopis


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Reprinted from: Snelling, R. 1970. STUDIES ON NORTH AMERICAN BEES OF THE GENUS HYLAEUS. 5. THE SUBGENERA HYLAEUS. S. STR. AND PARAPROSOPIS (HYMENOPTERA: COLLETIDAE) Contributions in Science, No. 180.

As indicated above, the female assigned by Metz to this species is H. wooton;; the male type, now in the collection of the University of California at Riverside, is from Filmore Canyon, New Mexico, collected on Aug. 27 by T. O. A. Cockerell. Another male, with identical data is in the collections of the Los Angeles County Museum. Until the present study was undertaken H. cookii was known only from the type. It is doubtful if this species could have been recognized from the original description, or the figures of the genitalia and hidden ventrites as illustrated by Metz. When I was able to examine the type, I found it to be identical with a species which P. H. Timberlake and I had independently assumed to be undescribed. Because of the inadequacies of the original description, the species is redescribed and the hidden ventrites illustrated.

Diagnosis.-Male: Small species, head width not exceeding I mm.; scape less than half as wide as long; lateral face marks ending well above level of antennal sockets; frontal punctures coarse, distinct; mesoscutal punctures distinctly finer than those of frons; punctures of tergite I as coarse as those of mesoscutum, those of tergite II finer, dense on both segments. Female: Small, head width not exceeding 1.3 mm.; frontal punctures coarse, distinct; mesoscutal punctures equal to those of frons; metanotum not rugulose, with distinct punctures; abdominal punctation similar to that of male, but punctures finer, tergite III distinctly, though finely, punctate.

Male.-Integument black, except the following pale creamy-white: clypeus; supraclypeal mark; lateral face marks, ending acutely on eye margin well above level of antennal sockets; medially interrupted stripe on pronotal collar; pronotal lobe; spot on anterior half of tegula; small apical spot on all femora; stripe on anterior tibiae; elongate basal and small apkal spots on middle and hind tibiae; basitarsal and mediotarsal segments. Apical tarsal segments light ferruginous; tibial spurs whitish. Wings whitish-hyaline, veins and stigma light ferruginous. Erect pubescence whitish.

Head: UFO 0.76 x FL; LFD 0.52 x UFD; OCD 1.06-1.21 x TFD; basal width of clypeus 0.77 x distance from laterobasal angle to eye margin; distance between antennal sockets about equal to a socket diameter, distance from sockets to eye margin about 0.85 x a socket diameter. Maximum scape width about 0.42 x maximum length; minimum length of first flagellar segment about one-half length of second. Maculate portions of face slightly shining, finely punctate, those of clypeus separated by one-half to a full puncture diameter, those of lateral part of face somewhat elongate, linearly arranged, spacing variable; frons coarsely. contiguously punctate, the punctures distinct, the frons somewhat bulging on either side of midline. Vertex sharply raised above tops of eyes, coarsely punctate, the punctures crowded and less sharply defined than on frons.

Thorax: Mesoscutum dull, closely coarsely punctate, the punctures slightly larger than those of frons, separated by one-third to one-half a puncture diameter; mesoscutellum slightly shining, punctures about equal to those of mesoscutum, separated by one-half to a full puncture diameter; metanotum duU, densely tesselate, with punctures finer than those of mesoscutum, separated by about a puncture diameter: mesopleurae dull, tesselate, punctures about equal to those of mesoscutum, separated by about one-third to one-half a puncture diameter. Basal area of propodeum areolate; lateral areas coarsely punctate, the punctures poorly defined; transverse carina poorly developed, oblique carina absent; disc densely tesselate, with coarse punctures.

Abdomen: Tergite I shining, smooth, densely punctate, the punctures smaller than those of mesoscutum, separated by one-half to a full puncture diameter; tergite II more finely closely punctate, apical one-third (approximately), depressed, with scattered micropunctures, apical margin slightly reflexed; tergite III more finely, sparsely punctate; apical ventrites as illustrated.

Length, to apex of second tergite, 3.0-3.4 mm.; of forewings, 2.45-2.9 mm.

Female.-Similar to male in essential features, except as follows: c1ypeus and supraclypeal area dark, lateral face marks more rounded above; UFO 0.72-0.80 x FL: LFO 0.55-0.61 x UFO; OCD 1.02-1.07 x TFD; basal width of clypeus equal to distance from laterobasal angle to eye margin; distance between antennal sockets about 1.5 x a socket diameter: distance from sockets to eye margin slightly exceeding a socket diameter. Length, to apex of second tergite, 4.0-4.3 mm.; of forewings, 3.2-3.5 mm.


Names
Scientific source:

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Hosts · map
FamilyScientific name @ source (records)
Anacardiaceae  Rhus trilobata @ UCRC_ENT (2)
Apocynaceae  Asclepias tuberosa @ UCRC_ENT (4)
Asparagaceae  Nolina parryi @ UCRC_ENT (1)
Asteraceae  Chrysothamnus viscidiflorus @ UCRC_ENT (2)

Conyza canadensis @ UCRC_ENT (1)

Gutierrezia microcephala @ UCRC_ENT (9)

Lepidospartum @ UCRC_ENT (7)

Solidago californica @ UCRC_ENT (2)

Solidago @ UCRC_ENT (1)

Tetradymia canescens @ UCRC_ENT (9)

Xanthisma gracile @ UCRC_ENT (1)
Boraginaceae  Phacelia ramosissima @ UCRC_ENT (1)
Fabaceae  Melilotus sp @ BBSL (1)

Prosopis juliflora @ BBSL (3)
Lamiaceae  Salvia dorrii @ UCRC_ENT (1)
Malvaceae  Sphaeralcea ambigua @ UCRC_ENT (2)

Sphaeralcea sp @ BBSL (1)
Polygonaceae  Eriogonum abertianum @ UCRC_ENT (1)

Eriogonum corymbosum @ UCRC_ENT (1)

Eriogonum fasciculatum @ UCRC_ENT (2)

Eriogonum inflatum @ UCRC_ENT (1)

Eriogonum plumatella @ UCRC_ENT (1)

Eriogonum rixfordii @ BBSL (1)

Eriogonum @ AMNH_BEE (1); UCRC_ENT (8)
Rosaceae  Fallugia paradoxa @ BBSL (2)

Fallugia @ UCRC_ENT (1)
Zygophyllaceae  Larrea tridentata @ BBSL (1)
_  Withheld @ BBSL (7)

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Updated: 2024-05-26 12:04:47 gmt
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