Current EGGS and LARVAE

If you are a beginner and need information on rearing from small caterpillars, or hatching out pupae, please order the All Colour Paperback BUTTERFLIES. INSTRUCTIONS ARE NOT SENT WITH EACH SPECIES, you need to acquire basic skills and this book is a simple way of doing so.

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DUOS and TRIOS Pick Your Own. 10 eggs of each species.
Availability: NOW

DUOS and TRIOS Pick Your Own. 10 eggs of each species.

Eggs to be sent to Southern Europe take 1-2 weeks, which is too long in hot weather. Please order express courier (XXP) which delivers in 1-2 days from dispatch. Risk in the post is less for Northern Europe but time in the post is seldom shorter.

DUOS & TRIOS Select your own.  Extra good value! About half normal price.  Sometimes a species cannot be supplied at the time. If this happens we will substitute, and you can indicate in brackets an additional species that you would prefer if a substitute becomes necessary. You can choose any combination of species you like from the following:

European Tree of Heaven Silkmoth cynthia

Madagascan Emperor suraka

Chinese Oak Silkmoth pernyi  From very large and superior adult moths from China.

American Moon Moth luna Out of stock until later in August.

Puss Moth vinula


Select DUO £12.99 or TRIO £18.99. 

On your order enter IN THE COMMENTS BOX your chosen species. To keep it simple follow this example, using the short scientific name:  luna, advena, suraka (cynthia). This is an example of a TRIO. The name in brackets is your second choice if one species is sold out.

If you wish to buy more than one of the same combination just increase the quantity. To go on to buy a different combination DUO or TRIO, just click on the Pick Your Own again, on the same order and choose a further combination.  


Luna: Walnut, Liquidambar, Birch, Plane, Maples, Aspen, Plum, Oak, Sallow, Osier Willow, Several kinds of Oak.

Cynthia: Privet, Tree of Heaven Ailanthus, Osier Willow, Laburnum, Rose, Plum, Apple, Ash, Birch, Elder,

Suraka: Oleander, Privet, Willows, Beech, Liquidambar, Hawthorn, Grapevine, Lilac, Cherry, Laurel, Forcythia, Rhus, Pistachia, Apple, Pear, Plum, Peach and Cabbage.

Ocellata: Apple, Willows, Poplars, Also reported but not tried: Blackthorn, Lime, Privet, Alder, Birch, Plum, Blackthorn, some Viburnums, Various Prunus, Laurel.

Promethea: Foodplants include Lilac, Privet, Cherry, Ash, Apple, Pear, Oak, Rhododendron, Willow, Lime, Tulip Tree Liriodendron, Peach,  possibly Maple, Poplar and even Pine may also be taken.

Actias artemis: Fagus, Salix, Quercus, Prunus, Alnus, Rosa, Juglans, Acer, Pyrus, Malus, and more.

Vinula: Poplars, Willows, Sallows.

Robin Moth cecropia  Reported foodplants:   Lilac, Cherry, Pear, Apple, Acer, Plum, Alder, Birch, Dogwood, Willows especially Osier Salix viminalis, Elm, Beech, Gooseberry, Poplar. Privet is a good evergreen foodplant,

Bullseye Moth Automeris io:  Sallows and Willows, Lime, Oak, Hazel, Dogwood Cornus, Beech, Ash, Cherry, Apple, Plum and a great many more. 


Silkworms Bombyx mori 60-80 Early Stage Silkworms
Availability: NOW

Silkworms Bombyx mori 60-80 Early Stage Silkworms 

Silkworms that are about a week old and will mature in about 3-4 weeks.

Remember that little silkworms will become large and hungry, so make sure you have ample Mulberry leaves or at least 200g of diet powder per 20 silkworms. 

Automeris dagmarae Bolivia 15 eggs
Availability: Aug/Sep

Automeris dagmarae Bolivia

Another large species for Automeris. Very fine moths and attractive larvae with branched spines. Eggs are expected in spring. Larvae feed on Bramble, Laurel, Evergreen Oak and other Oaks, Willows, Apple, Plum, Hawthorn and Beech. Most Automeris larvae feed on a wide variety of trees, so try others and add to the list of foodplants.

The larvae pupate amongst leaf litter. Two or more generations in a year.

Automeris frankae Costa Rica 15 eggs
Availability: August

Automeris frankae Costa Rica 

A large species for Automeris, never before offered by WWB. The wonderful spined larvae feed on Bramble, Oaks, Beech and Willows. Undoubtedly other trees will be accepted.

Milk Parsley Peucedanum palustre  Packet of seed
Availability: NOW

Milk Parsley Peucedanum palustre  Packet of seed

The natural foodplant of the English Swallowtail butterfly, in its fenland habitat, and for Papilio machaon machaon, the nominate race in Sweden. This plant encourages egg-laying like no other, and is often the chosen foodplant of the European Papilio machaon gorganus in other parts of Europe,   

The leaves look a little like Carrot. This is a marsh plant that likes growing with its roots in water. Potted plants can be stood in a tray that is always full of water. Otherwise grow on the edge of a pond, or create a non-draining habitat around the roots.

Larvae from eggs laid on Milk Parsley can be changed to Fennel or other foodplants, in cases where there is not enough Milk Parsley to raise a host of hungry caterpillars. However, our Swedish breeder tells us that in that country, machaon does much better when fed only on Peucedanum.

Seeds sown in autumn are capable of producing plants large enough for egg-laying in the following summer.

Easily grown from seed, in a tray of peaty compost. Seed does not keep for many weeks, so don't store the seed: sow without delay.


Ringlet Butterfly Aphantopus hyperanthus 15 eggs
Availability: July 2022

Ringlet Butterfly Aphantopus hyperanthus

A species of meadows, especially damp places. Eggs are laid in July. The larvae hibernate deep in the grasses. In spring they resume feeding. Keep larvae on a good tussock of potted grass, totally enclosed with a size 3 sleeve This is the first time offered by WWB! 

Silkworms Bombyx mori 20 Medium Silkworms 
Availability: NOW

Silkworms Bombyx mori 20 Medium Silkworms 

Nearer half-grown these are advanced and, according to temperature, will be mature in a couple of weeks. Suitable size for class demonstration. 

KOKUSO 21 Mulberry A group of 5 robust cuttings.
Availability: NOW

KOKUSO 21 Mulberry A rarity! A group of 5 robust cuttings.

This sericultural form of Mulberry has been developed in Asia for its large leaves with high nutrition as food for Silkworms. Not generally available for sale, we are offering a limited number of robust cuttings in groups of 5. 

The cuttings will develop roots and leaves if put into compost, preferably with manure. Never let the compost dry. Rooting may be assisted if dipped in hormone rooting powder. Mulberry cuttings take longer to root than Willows and Osiers, which are very rapid. Hard winter pruning is repaid with amazing growth, which can reach 1-2 metres on every branch in the following summer.

This is a rare shrub, seldom seen in Northern Europe.

OSIER A wonderful foodplant. Ten cuttings
Availability: NOW

Osier Willow cuttings S. viminalis

Years ago we planted a stick that was floating down a river in Wiltshire.  That was in 1954! It grew – rapidly – producing a wealth of leaves.  We tried it as a foodplant and discovered that not only did British species do well on it, but exotic silkmoth larvae as well.

This stick was the daddy of hosts of willow thickets that we have established in Dorset, Cornwall and in France.

Osier is Basket Willow, the flexible essential for basket weaving. It makes a wonderful woven hedge. It can form living sculptures. Winter or summer, Osier makes wonderful screens and windbreaks. Cover for wildlife and game. Osier is grown as a crop for energy production. In short it is a blessing to the environment, and very pleasant on the eye in landscaping schemes.

 We are offering a bunch of 10 cuttings for you to try not only as probably the most universal foodplant for larvae, but a great addition to your garden and grounds. 

Probably the easiest cuttings to strike and grow. You simply push them into the ground, during autumn or spring. Leaves will appear within the first fortnight if planted in spring, roots quickly follow. In the first year they will more than double in size. Next year, in normal drought free conditions,  if you winter prune very hard, you will have perhaps 2 metres of growth on every branch, providing masses of foodplant. You may even be able to feed some in the first year.

You can store cuttings before planting, either in a polythene bag in the fridge, or standing in water. In water they often start to root. It is advisable to plant them before the roots actually burst out of the bark.


This plant is a complete success story – you will be pleased you tried it!  

Prepared Mulberry Diet  1 Kilogramme
Availability: NOW

Prepared Mulberry Diet  1 Kilogramme

This diet has been prepared from Diet Powder and is ready to feed to silkworms immediately. Keep refrigerated when not in use. It will keep for about a month.  

Great Water Dock Rumex hydropathalum Seeds. Foodplant of the Large Copper Butterfly
Availability: NOW

Great Water Dock Rumex hydropathalum Seeds. Foodplant of the Large Copper Butterfly

Seldom available. Sow in autumn or from February. Seed germinates and grows well in Spring, producing plants with broad leaves and often growing to over a metre in height.

In the wild Great Water Dock lives at the water's edge, with its roots continually immersed. If growing in pots, keep them in a tray with no holes, and always filled with water.

Prepared Mulberry Diet  200 grammes 
Availability: NOW

Prepared Mulberry Diet  200 grammes 

This diet has been prepared from Diet Powder and is ready to feed to silkworms immediately. Keep refrigerated when not in use. It will keep for about a month.  You will usually need more than this sample to rear a group of silkworms.