The Orange spider of the West Indies. Tincture from the live animal. What is the headache of Theridion ? Periodical over the left eye, throbbing and shooting, aggravated by the heat of the sun and noise, and associated with vertigo and deathly nausea, which is worse on closing the eyes and from the least motion or jar, as walking across the floor. Extreme sensitiveness to noise. What is the use of Theridion in phthisis ? In phthisis florida where there are stitching pains through to the back and in the left chest, with great cardiac anxiety.