The bee-eaters are a group of birds in the family Meropidae, containing three genera and thirty species. Most species are found in Africa and Asia, with a few in southern Europe, Australia, and New Guinea. They are characterised by richly coloured plumage, slender bodies, and usually elongated central tail feathers. All have long down-turned bills and medium to long wings, which may be pointed or round. Male and female plumages are usually similar.
Hornets are the largest of the eusocial wasps, and are similar in appearance to their close relatives yellowjackets. Some species can reach up to 5.5 cm (2.2 in) in length. They are distinguished from other vespine wasps by the relatively large top margin of the head. Worldwide, 22 species of Vespa are recognized. Most species only occur in the tropics of Asia, though the European hornet is widely distributed throughout Europe, Russia, North America, and north-eastern Asia. Wasps native to North America in the genus Dolichovespula are commonly referred to as hornets, but all of them are actually yellowjackets.
The Colletidae are a family of bees, and are often referred to collectively as plasterer bees or polyester bees, due to the method of smoothing the walls of their nest cells with secretions applied with their mouthparts; these secretions dry into a cellophane-like lining. The five subfamilies, 54 genera, and over 2000 species are all evidently solitary, though many nest in aggregations. Two of the subfamilies, Euryglossinae and Hylaeinae, lack the external pollen-carrying apparatus that otherwise characterizes most bees, and instead carry the pollen in their crops. These groups, and most genera in this family, have liquid or semiliquid pollen masses on which the larvae develop.
The genus Megachile is a cosmopolitan group of solitary bees, often called leafcutter bees or leafcutting bees; it also includes the called resin bees and mortar bees. While other genera within the family Megachilidae may chew leaves or petals into fragments to build their nests, certain species within Megachile neatly cut pieces of leaves or petals, hence their common name. This is one of the largest genera of bees, with more than 1500 species in over 50 subgenera. The alfalfa leafcutter bee is managed on a commercial scale for crop pollination, and has been introduced by humans to various regions around the world.
The genus Colletes is a large group of ground-nesting bees of the family Colletidae. They occur primarily in the Northern Hemisphere. They tend to be solitary, but sometimes nest close together in aggregations. Species in the genus build cells in underground nests that are lined with a cellophane-like plastic secretion, a true polyester, earning them the nickname polyester bees.
The northern colletes is a species of bee within the genus Colletes. Northern colletes are solitary bees, though females may nest in what are termed aggregations – sites where the bees nest close together, but do not form colonies as social bees do. They nest underground in soft soil, digging burrows up to 20 times their body length. It is often to be found nesting in coastal sand dunes and, on Hebridean islands, machair.
Sphecodes albilabris is a solitary parasitic bee that is endemic to Central and Western Europe. It also occurs in North Africa and is thought to have been introduced to the United States and Australia by accident.
Colletes elegans a species of ground-nesting bee in the genus Colletes, which is found in Israel. It has been found that the species has a strong preference during pollination to plants in the family Resedaceae.
Colletes hederae, the ivy bee, is a species of plasterer bee belonging to the family Colletidae subfamily Colletinae.
Colletes halophilus, the sea aster mining bee, is a rare species of mining bee from the family Colletidae which is found around the margins of saltmarsh and other coastal habitats in south-eastern England and north-western Europe. It is threatened by rising sea levels and human development which reduce its food plant sea aster and destroy its nesting areas.
Colletes succinctus, the common colletes or heather colletes, is a species of Palearctic mining bee from the family Colletidae. It is part of the succinctus species group within the genus Colletes and is especially closely related to the ivy bee and the sea aster mining bee which are partially sympatric with C. succinctus but ecologically separate.
Epeolus cruciger, the red-thighed epeolus, is a species of cuckoo bee from the family Apidae. It is endemic to Europe, where its main host is the common colletes, although other species of Colletes mining bees have been recorded as hosts.
Epeolus is a genus of cuckoo bees in the family Apidae. They are often known as variegated cuckoo-bees.
Sphecodes gibbus, the dark-winged blood bee, is a species of cleptoparasitic blood bee from the Palearctic. It is the type species of the genus Sphecodes and was first described by Carl Linnaeus as Sphex gibba in 1758.
Stenoria analis, the ivy bee blister beetle, is a species of blister beetle from the family Meloidae which is found in western Europe and North Africa and is a specialist cleptoparasite of the ivy bee larvae. Its occurrence in regions outside of the known range of the ivy bee, for example in North Africa, suggest that it has other hosts.
Colletes validus, colloquially known as the blueberry cellophane bee, is a solitary, specialist bee in the family Colletidae. It is found primarily in eastern North America where it nests in sandy soils near ericaceous plants.
Epeolus lectoides, the cuckoo bee, is a species of cuckoo bee in the family Apidae. It is found in North America. Hosts include Colletes latitarsis and Colletes nudus.
Colletes cunicularius, the vernal colletes or spring mining bee, is a species of solitary bee from the family Colletidae which is widespread in the Palearctic from Britain to the Pacific Ocean which nests in areas of open, sandy soil.
Apalus bimaculatus, the early blister beetle, is a species of blister beetle from the family Meloidae. It is the type species of the genus Apalus.
Colletes similis is a species of plasterer bee belonging to the family Colletidae, subfamily Colletinae.
