D I S C O V E R    L I F E   
Bee Hunt! Odonata Lepidoptera 
  HomeAll Living ThingsIDnature guidesGlobal mapperAlbumsLabelsSearch
  AboutNewsEventsResearchEducationProjectsStudy sitesHelp

Colletes eulophi Robertson, 1891
Colletes illinoiensis Robertson, 1891

Life   Insecta   Hymenoptera   Apoidea   Colletidae   Colletes
Subgenus: None

Colletes eulophi, Barcode of Life Data Systems
Barcode of Life Data Systems · 1
Colletes eulophi, Barcode of Life Data Systems

Click on map for details about points.

80x5 - 240x3 - 240x4 - 320x1 - 320x2 - 320x3 - 640x1 - 640x2
Set display option above.
Click on images to enlarge.
Colletes eulophi, dorsal ventral and lateral genital armature, sternum 7,
© Copyright source/photographer · 1
Colletes eulophi, dorsal ventral and lateral genital armature, sternum 7,
Colletes eulophi, figure10a
Mitchell, Bees of the Eastern United States, Vol. I, 1960 · 1
Colletes eulophi, figure10a
Reprinted with permission from: Mitchell, T.B. 1960 Bees of the Eastern United States. North Carolina Agricultural Experiment Station Technical Bulletin No. 141.

This species is so closely related to kincaidii that the two are distinguished only with difficulty. No reliable or constant difference between the females of the two species can be given, and it is best to rely on the males for positive identification. In that sex the one apparently constant difference in the form of the retracted 7th abdominal sternum. The figures (Plate 9) will show the difference. In kincaidii the discs this plate are relatively broad at the base, abruptly expanded above the base, and this area is densely setose to the inner margin. In contrast, the discs in eulophi are somewhat narrower at base, are much more gradually expanded above toward the apex, and the inner half of the base is devoid of setae.
In all other characters the description of both sexes in kincaidii will serve equally well for eulophi.

DISTRIBUTION�According to Stephen (1954) this occurs in Illinois, Ohio, Kentucky, the District of Columbia, Virginia, West Virginia and North Carolina, and is widely distributed in the West as far as Arizona and Utah. In North Carolina it is in flight from June to early November.

FLOWER RECORDS � Aster, Rubus, Solidago. Stephen records it also on Ceanothus fenderli, Clematis, Eupatorium perfoliatum, Melilotus, Solidago nemoralis and Sophia obtusa. In Robertson�s �Flowers and Insects� (19291 this species or the closely related kincaidii Cockerell is recorded on about 30 host plants, some of which are listed above. Since there is a probability of confusion between these two species with respect to these records, they will not he listed here.

Extracted from: Charles, R. (1895). Notes on bees, with Descriptions of New Species. Transactions of the American Entomological Society Vol. 22, No. 2. pp. 115-128.

This species closely resembles C. americana Cress., but has the ab domen more strongly punctured and with narrower fascise, and there is a well-marked interval between the base of the mandibles and the eyes. In C. americana these almost touch, while in C. eulophi there is quite an interval, which in the ♂ is subquadrate.

Scientific source:

Supported by

Hosts · map
FamilyScientific name @ source (records)
Asteraceae  Dyssodia papposa @ AMNH_BEE (1)

Parthenium hispidum @ AMNH_BEE (2)

Pectis sp @ BBSL (1)

Solidago @ AMNH_BEE (2)

Symphyotrichum lanceolatum @ AMNH_BEE (1)
Fabaceae  Dalea greggii @ BBSL (5)

Prosopis juliflora @ BBSL (23)
Hydrophyllaceae  Eriodictyon angustifolium @ BBSL (1)
Lamiaceae  Perilla @ AMNH_BEE (1)
Malvaceae  Sphaeralcea sp @ BBSL (6)
Mantidae  Iris sp @ BBSL (1)
Rhamnaceae  Ceanothus americanus @ AMNH_BEE (2)

Ceanothus sp @ BBSL (1)
Rutaceae  Ptelea trifoliata @ AMNH_BEE (1)
Scrophulariaceae  Penstemon sp @ BBSL (2)
_  Withheld @ BBSL (78)

go to Discover Life's Facebook group

Updated: 2024-06-18 15:48:39 gmt
Discover Life | Top
© Designed by The Polistes Corporation