ויקרא, פרק י״א, פסוק כ״א

The animal kingdom presents a vast array of creatures, and the Biblical dietary laws differentiate them not only by their physical appearance but also by their unique modes of movement. Within the insect family, specific anatomical features determine whether a species is permitted for consumption. Interestingly, the laws governing these flying insects yield a surprising principle: while the insect itself may be impure, what it produces can be pure. A classic example is bee honey. Because honey is not generated from the bee’s actual body, but is rather nectar and dew collected from plants and deposited into the hive, it is completely permitted to eat [תורה תמימה].

Anatomically, pure insects are characterized by three distinct types of movement: flying with wings, walking on four legs, and jumping [ביאור יש״ר]. Their walking serves to maintain their physical health [שפתי כהן]. Furthermore, their wings are not exclusively for flight; they assist the insect in leaping as it contracts and extends its legs. This coordination highlights a precise natural providence, matching the creature's organs perfectly to its specific method of movement [רלב״ג]. A fascinating detail emerges regarding the developmental stages of these creatures. A pure insect remains permitted even in its early, larval phases before its jumping legs have developed, provided it belongs to a species that will eventually grow them.

These specialized jumping legs are taller and distinct, protruding above the four standard walking legs [ביאור שטיינזלץ, פירושי רד צ הופמן]. Their primary function is to enable the insect to spring and leap across the ground [רשב״ם, אבן עזרא, שפתי כהן]. However, there is a historical and interpretive debate regarding the exact anatomical placement of these jumping legs. One approach maintains that they are located near the insect's neck [רש״י, ביאור יש״ר]. Relying on this understanding, some authorities completely banned the consumption of locusts in modern times, as no insects with this specific structure could be found, and it was even recorded that ceasing their consumption halted a severe plague [אור החיים]. Conversely, certain communities maintained a tradition of eating locusts whose jumping legs are situated near the tail, understanding these specialized legs as an extension at the extremities [ברכת אשר].

By combining these various criteria, five essential signs of purity are established: four walking legs, four wings, two jumping legs, wings that cover the majority of the insect's body, and the fundamental requirement that the insect belongs to the recognized locust family [רש״י, רש ר הירש, פירושי רד צ הופמן]. Because some insects possess these signs but exhibit slight physical variations—such as an elongated head or a lack of a tail—and because the precise tradition for identifying the exact locust family has been lost over time, the prevailing practical conclusion is that we currently lack the expertise to confidently distinguish between pure and impure species. Consequently, the widespread practice today is to refrain from eating them entirely [רש״י, ברטנורא, ברכת אשר].

Beyond the physical and legal dimensions, the specific names of the permitted locust families carry profound spiritual symbolism. The Arbeh represents a person who abundantly multiplies their good deeds and Torah study. The Solam signifies one who places their unwavering trust in God, relying on Him as a solid rock. Finally, the Chargol reflects an individual who casts their life's path entirely upon God, rather than relying solely on their own personal strength and power [שפתי כהן].