Samia ricini is a Saturniidae species which produces a valuable pure white silk, ideal for spinning. Samia cynthia ricini (Lepidoptera:Saturniidae), the Indian eri silkworm, contributes significantly to the production of commercial silk and is widely distributed in the Brahmaputra river valley in North-Eastern India. When they are born they are very small (0.5 cm) and have a green color with a black head. Duanpen Wongsorn. Description:Tibetan layman's sen (wrapper) composed of 100% eri silk (Samia ricini), hand-woven in Nepal, and bought by a merchant in New York State from a vendor in Kathmandu, Nepal. They have no mouth! That is enough moisture for the caterpillars. The female lays about 200 to 300 eggs in her life.Do not release eggs, caterpillars or moths into nature. In nature or in moth farms they are fed with Tree of Heaven leaves, but they can also be kept exclusively on privet. Real Samia species that live in the wild have brown or reddish abdomens, with a few white spots or stripes. Samia cynthia ricini Boisduval, 1854. This caresheet deals with both Samia cynthia and Samia cynthia ricini. Samia ricini, the Eri silkmoth, is a very easy species to rear in captivity, suitable for the winter season. Samia cynthia ricini (Family: Saturniidae) is commonly called as the Indian eri silkworm. The cocoon is the first stage of the silk fiber – the first look we get at something that will become silk fiber and silk yarn. 1/, Sivilai Sirimungkararat. Are you sure you want to cancel your report. Samia ricini, the Eri silkmoth, is a very easy species to rear in captivity, suitable for the winter season. 2020;6(2): 11. man days of employment are generated from the establishment of one acre of mulberry garden for rearing 300 dfls (disease free layings) of silkworms in two months . Eri silkworm rearing method as suggested by Chowdhury (1982) was followed . The abdomen is mainly white. Samia cynthia is not a native species in many countries, so releasing it could disrupt nature. It is a beautiful big moth found in Asia. low cost bamboo mountages for Eri Silkworm, Samia ricini Donovan. Another Assamese delight, the Eri silk has been produced from open-ended cocoons obtained from the silkworm Samia ricini. In this case as the moth has already emerged from the cocoon when it is gathered for processing it does not involve the killing of silkworms. Samia ricini, resulting from the hybridization of many Samia species, is a multivoltine breed that accepts a number of common host plants including cherry, ailanthus, sumac, and privet. The care for both subspecies is the same. Caterpillars should never sit in a too damp environment, because they can develop problems with bacterial infections. The cocoon is golden brown or glossy white. The lower the temperature, the slower the growth. They do this by gluing their feet on the ground and then just walk out of their old skin. For example by a mesh cover. Food plants of eri silkworm, Samia ricini (DONOVAN) their rearing performance and prospects for exploitation. It requires suitable mounting device to get ... cocoon mountage called ‘JALI’, which is made up of bundle of dried leaves of mango, jack fruit, sal, etc. Most Samia cocoons are though and brown, but only the Samia ricini has milky, pale, soft white silk cocoons. You can rear your own caterpillars to produce these amazing fibers. The caterpillars look really pretty. A small quantity of eri cultivation is also practiced in Bihar, West Bengal, Orissa, Jharkhand, Chhattisgarh, Uttranchal, Gujarat and Andhra Pradesh. Hence, different genotypes Department of Sericulture, Forest College and Research Institute, TNAU, Mettupalayam, Tamil Nadu, India Rearing performance of c2 breed of eri silkworm, Samia cynthia ricini, (Family: Saturniidae, order: Lepidoptera) feeding with different castor They can also eat castor bean leaves, cherry leaves (Prunus sp. When the moths eclose from their cocoon they will almost immediately start mating. The pupa develops within 3 weeks to a butterfly. The males of the Ricini Silkmoth are recognizable by the broad feathered antennae. Hope you've found this instructable useful! The silk is natural cream colored, made from the white cocoons of eri … The caterpillars and butterflies cannot bite or hurt you, they are completely harmless. At the tip of the wings is a small eye-spot meant to distract predators. The cocoons of the samia ricini have produced yarns varying from a yard to three yards.” You can create such pieces and stitch them together for a stole. It can be the source for valuable silk fibers, Host Plants: Ricinus, Ailanthus, Ligustrum, Prunus and possibly more, These cocoons can be bought directly from our store at www.timetobreed.com, for any information do not hesitate to contact me at email@example.com, Select a label or click "Other" to send comments. The females have antennae with less “hair” on it. G Swathiga growth and development of eri silkworm and cocoon productivity. … Samia cynthia is not a native species in many countries, so releasing it could disrupt nature. Eri cocoon shells contribute considerably to spun silk production. 1/, 2/, 4/ ,*, Hathairat Urairong. Cynthia moth or Tree of Heaven silkmoth. When they are bigger, they are completely white with a yellowish or blueish hue. Samia ricini, Mating. Average price : 50 eggs for 10€, 1 cocoon 1€ There we go with the first species I raised that has became a moth. The Samia cynthia butterfly has a brown wing color in different shades of brown and has a beautiful purple stripe along the wings. If you find cocoons, you can collect them and hang them in a special enclosure suitable for eclosion of the moths. It belongs to the order Lepidoptera and is a commercial silk-producing insect (Vijayan et al. The silk is not reelable like Bombyx mori, the mulberry silkworm, so it is spun into a yarn which is both soft and durable.In their native lands, they are hand-fed mostly castor bean and tapioca leaves, but will also eat ailanthus and ligustrum. A suitable residence for the caterpillars is a plastic box with lots of ventilation. Four different mating durations, viz., 2 hours, 3 hours, 4 hours, 5 hours were considered for the study. 3/ and Weerasak Saksirirat. They grow very fast, the caterpillars grow up to 7 cm long in one month. The photos don't do it justice, but the rough spun yarn has lovely gloss to it and what's nice about this technique is that there's very little waste. Samia ricini and S. canningi are non-mulberry silk worms with multivoltine and bivoltine nature reared indoor and outdoor, respectively. They also have yellow spots and lines on the wings. Samples were obtained from the aqueous solution stored in the silk gland and stretched at draw ratios (lambda) … When the caterpillars molt to their next instar, they become whitish. The butterfly lives between 5 and 8 days. The cocoons of the samia ricini have produced yarns varying from a yard to three yards. Cocoons, after the adult has emerged, need to be processed in order to obtain the silk fibers, in a way that they are usable for spinning. Samia cynthia butterfly seen from the front. the eri silkworm,Samia cynthia ricini Boisduval (Lepidoptera: Saturniidae) is the only species domesticated completely ... host leaf, the worm growth, development and cocoon yield varies. Screening for eri silkworm (Samia ricini Donovan) ecoraces using morphological characters, growth, yields and ISSR marker . The caterpillars are really large and have beautiful white, yellowish or blueish colors. A consequence of not eating is that they will not live long, generally about 8 to 10 days. Chowdhary, S.N., 2006. J Plant Biol Soil Health. ), rose leaves, laburnum (Laburnum anagyroides) and ‘Tree of Heaven’ leaves (Ailanthus altissima). The butterflies do not fly much, but sometimes the males will fly in the night. Some people set the moths free in a room, then they obviously have the most space! Stock obtained as eggs, March 2017. higher productivity in terms of cocoon yield. Samia ricini, the eri silkworm The pupa is copper brown, weighs about 6g. The room should be safe for them though. As the first step of genetic analyses, causal genes for “Blue,” “Yellow,” “Spot,” and “Red cocoon” phenotypes were mapped to chromosomes. It can be the source for valuable silk fibers Host Plants: Ricinus, Ailanthus, Ligustrum, Prunus and possibly more 1,8 EUR each cocoon Samia ricini Donovan, was carried out in the laboratory of Department of Sericulture, Assam Agricultural University, Jorhat during the year of 2017-2018. The approximate body length of male moths is 3 cm and of the females 3. Rearing notes for our eri silkmoth (Samia ricini) larvae. Females can be picked up easily without restraining them, they rarely fly. They molt five times. The body of the moth is white with brown stripes. Samia ricini has been brood over the years by men in order to produce silk, and results of an hybridization between many species. 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