 The Arthashatra also refers to four trees ("Vakula", "Likucha", "Vata" and "Naga-vriksa") which the silkworms feed on.Out of this, "Vakula" and "Naga-vriksa" belong to the genus Ericales and Magnolia which the Muga silkworm Antheraea assamensis is known to feed on; while "Likucha" and "Vata" belong to the genus Moraceae(Mulberry) which the Pat Silkworm feeds on.The text also states that the fibre was spun while the threads were wet, indicating that the production method was still the same at that period.