History of the star: Shaula from Arabic Ash-Shaulah (1), or Al Shaulah "The raised tail of the scorpion"; from Mushalah, "Raised", referring to the position of the sting of the Scorpion ready to strike. These words have been confused with the names for the adjoining upsilon (Lesath), and in the course of time corrupted to Shauka, Alascha, Mosclek, and Shomlek from Mosclek, which signifies the bending of the tail.

lamda (Shaula) and upsilon (Lesath) were the Arabic 17th manzil, Al Shaulah.

These two stars were the Hindu nakshatra Vicritau, the "Two Releasers", perhaps from the Vedic opinion that they brought relief from lingering disease. Some Hindu authorities, taking in all the stars from epsilon to upsilon, called the whole Mula, the "Root", with the divine Nirrity, Calamity, as regent of the asterism, which was represented as a Lion's Tail; this title appearing also for stars of Sagittarius.

In Coptic Egypt lamda and upsilon (Lesath) were Minamref, the Sting; and, on the Euphrates, Sarur.

Iota, kappa, lamda (this star Shaula), theta (Sargas) and upsilon (Lesath), were the Girtab of the Euphratean lunar zodiac, the Vanant of Persia and Vanand of Sogdiana, all meaning the "Seizer," "Smiter," or "Stinger "; but the Persian and Sogdian words generally are used for our Regulus.  

In Khorasmia these stars were Khachman, the "Curved".

[Star Names, Their Lore and Meaning, Richard Hinchley Allen, 1889]. 

Influences of the Arabic 17th manzil: Helps in besieging cities, taking towns, driving men from their places, destruction of seamen and captives. With Moon transiting here; buy cattle, hunt but do not marry. (Robson*). 

Influences of the Hindu nakshatra Vicritau: favorable for punishment, imprisonment, exorcism, mesmerism and separation or union when containing the Moon. Those born on the lunar day will be druggists, dealers in flowers and fruit, rich and fond of gardening. With Moon transiting here at birth native will be conceited, wealthy, luxurious, kind-hearted, happy and resolute. (Robson*). 

The astrological influences of the constellation: The Scorpion is associated with the Hebrew letter Oin and the 16th Tarot Trump "The Lightning-Struck Tower". (Robson*).

The astrological influences of the constellation given by Manilius:

"The Scorpion presides over arms" [Manilius, Astronomica, 1st century AD, book 4, p.253]

By virtue of his tail armed with its powerful sting, wherewith, when conducting the Sun's chariot through his sign, he cleaves the soil and sows seed in the furrow, the Scorpion creates natures ardent for war and active service, and a spirit which rejoices in plenteous bloodshed and in carnage more than in plunder. Why, these men spend even peace under arms : they fill the glades and scour the woods; they wage fierce warfare now against man, now against beast, and now they sell their persons to provide the spectacle of death and to perish in the arena, when, warfare in abeyance, they each find themselves foes to attack. There are those, too, who enjoy mock-fights and jousts in arms (such is their love of fighting) and devote their leisure to the study of war and every pursuit which arises from the art of war. [Manilius, Astronomica, 1st century AD, p.239-240]. 

The general astrological influences of the star: It gives danger, desperation, immorality and malevolence, and is connected with acid poisons. (Robson*). 

References

*(Fixed Stars and Constellations in Astrology , Vivian E. Robson, 1923)