Northern colletes  (Colletes floralis)

Authenticated (13/02/2006) by Stuart Roberts, Chairman of the Bees, Wasps and Ants Recording Society,
http://www.bwars.com/

• Abdomen: in arthropods (crustaceans, insects and arachnids) the abdomen is the hind region of the body, which is usually segmented to a degree (but not visibly in most spiders). In crustacea (e.g. crabs) some of the limbs attach to the abdomen; in insects the limbs are attached to the thorax (the part of the body nearest to the head) and not the abdomen. In vertebrates the abdomen is the part of the body that contains the internal organs (except the heart and lungs).
• Larva: stage in an animal’s lifecycle after it hatches from the egg. Larvae are typically very different in appearance to adults; they are able to feed and move around but usually are unable to reproduce.
• Pupa: stage in an insect’s development when huge changes occur, which reorganise the larval form into the adult form. In butterflies the pupa is also called a chrysalis.
• Thorax: part of the body located near the head in animals. In insects, the three segments between the head and the abdomen, each of which has a pair of legs. In vertebrates the thorax contains the heart and the lungs.

1. The National Biodiversity Network Species Dictionary (September, 2004)
   http://nbn.nhm.ac.uk/nhm/bin/nbntaxa.dll/taxon_details?taxon_key=NBNSYS0000009599
2. Royal Society for the protection of Birds – Biodiversity (September, 2004)
   http://www.rspb.org.uk/biodiversity/RSPBandbiodiversity/lead_partner/inverts/colletesbee/index.asp
3. UK Biodiversity Action Plan (September, 2004)
   http://www.ukbap.org.uk/UKPlans.aspx?ID=235
4. Roberts, S. (2006) Pers. comm.