The Japan Sooiety of Medioal Entomology and Zoology ( 272 ) 衛 生 動 物 1967 年 Vol.18 No .4 observed in the 丘rst instar larv 乱 However , dispersal SeemS to ocCUr in the Second instar . 8) Cocoon formation takes place on the Lower par亡 s of the trunks of old hackberry trees , or in nearby places ; cocoons can be found in cracks in the bark on the trunk , or in weeds near the roots , in a cocQQn ・ mass of variable size . The surface of the cocoon is quite ind三 stinct and wrapPed in a rather coarse

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... k . 9) The cause of dermatitis in the human body seems due to a large number of spine on the old larval skin , adhering ejther t the coarse silk on the surface of tlle cocoon or scattered on the ground . Undoubtedly , there is some suffering caused by the sting from spines on tlle living larva .