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Family Colletidae - Plasterer and Masked Bees

Yellow-faced Bee - Hylaeus Small Black Wasp - Hylaeus Unknown Bee - Colletes Colletes howardi on Dalea pinnata - Colletes howardi - female Hylaeus modestus? - Hylaeus Unknown bee - Colletes Bee on white sweetclover - Colletes Colletidae? - Hylaeus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
No Taxon (Anthophila (Apoidea) - Bees)
Family Colletidae (Plasterer and Masked Bees)
Other Common Names
Masked Bees
Numbers
ca. 160 spp. in 6 genera of 4 subfamilies in our area, >2,500 spp. in ~90 genera of 8 subfamilies worldwide(1)
Subfamilies:
Colletinae: ca. 100 spp. in a single genus in our area, almost 500 spp. in 2 genera total (the second genus is in S.America south of the equator)(1)
Diphaglossinae: 7 spp. in 3 genera in our area (all in the Caupolicanini), 130 spp. in 11 genera of 3 tribes total; this is a New World group, almost exclusively neotropical(1)
Hylaeinae: in our area, ~50 spp. in a single genus, 934 spp. in 7 genera worldwide; about ¾ of the global diversity is in the Old World; all the genera except the cosmopolitan Hylaeus are restricted to Australasia (~350 spp. are Australasian, too)(1)
Paracolletinae: a single species in our area, 430 spp. in 46 genera total; ~2/3 of the spp. are Australasian, the rest, Neotropical(1)
Overview of our fauna (* –taxa not yet in the guide)
Family Colletidae
Subfamily Colletinae Colletes
Subfamily Diphaglossinae
Identification
Jugal lobe in HW longer than submedian cell. Basal vein straight or nearly so. One subantennal suture below each antennal socket. Glossa (tongue) short, bilobed or truncate.
2nd and 3rd submarginal cells are roughly the same size in Colletidae, while 2nd one is distinctly smaller in Andrenidae.(2)(3)
Works Cited
1.Ascher J.S., Pickering J. (2014) Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila)
2.Peterson First Guide to Insects of North America
Richard E. White, Christopher Leahy, Roger Tory Peterson. 1998. Houghton Mifflin Co.
3.Borror and DeLong's Introduction to the Study of Insects
Norman F. Johnson, Charles A. Triplehorn. 2004. Brooks Cole.