The YNU Recorder for parasitic Hymenoptera is Mr Bill Ely,  9 Clifton Lane, Rotherham, S65 2AA.  Tel: 01709 367913.  E-mail:

The YNU holds around 15,000 to 20,000 parastic Hymenoptera records and these are being passed to the Yorkshire Local Records Centres. 

Insect Section Menu


Recording sawflies in Yorkshire


The beetle sub-section of the YNU.

Butterflies and Moths

The butterflies and moths sub-section of the YNU.

Hemiptera, Neuroptera & Odonata

Plant bugs, lacewings, dragonflies and damselflies


Diptera recording in Yorkshire

Grasshoppers and Crickets

The Grasshoppers & Crickets sub-section of the YNU


Mayfly recording in Yorkshire

Plant Galls

Plant gall recording in the YNU

Isopoda, Myriapoda and Pseudoscorpiones

Woodlice, millipedes, centipedes and false scorpions


Insect recording in Yorkshire

Insect Events

List of up coming events

Insect Section News

News from the YNU's Insect Section


Caddisflies or Trichoptera, (meaning, from the Greek trichos a hair and pteron a wing; hairy-wing

Bees, wasps and ants

The Bees, Wasps and Ants Sub-Section of the YNU.


StoneStoneflies, belonging to the Insect order Plecoptera, are so called because the adults of th

Parasitic Wasps

The Parasitic Wasp Sub-Section of the YNU.

Main Contacts

Chairman and Secretary of the Entomological Section

Sub Section Menu: Parasitic Wasps


Recording parasitic Hymenoptera in Yorkshire


The Ichneumonidae is the largest family of insects in Britain.

Ichneumon Sub-families

This page describes the different sub-families of the Ichneumonidae.

Yorkshire Checklists

The Yorkshire checklists of the sub-families of the Ichneumonidae show the folowing details: