en here, which possess in themselves another interest, of an economic character. TREHALA.—A singular substance has long been known in the East under the name of Trchala or Tricula. It consists of oval cases from half to three-quarters of an inch in length, found attached by one side to twigs of a… … (Larinus subrugosus, Chevr.), of which a figure is given (Fig. 1). “It appears that the larva of the Larinus collects a considerable quantity of saccharine and amylaceous matter, which it procures from the Eehinops, and that it constructs its dwelling by disgorging this matter and mould- ing it…
Technology
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![An illustration from Episodes of insect life / by Acheta Domestica, [pseud.] ;edited and revised by J.G. Wood. (1879)](https://img.insideoutlibrary.com/img/200/wellcome-wellcome_b28066340-258-1.webp)
