Fossores
or FOSSORIA, in entomology, burrowing Hymenoptera, a sub-tribe of the hymenopterous tribe Aculeata. Sexes two, the individuals in both of which are furnished with wings, legs formed for burrowing or for running, tongue not elongated, but widened at the extremity. Habits not social.
The females of the fossores construct holes in the ground, where they form their nests. Depositing their eggs, they next lay up for the future larvæ a supply of food consisting of spiders and caterpillars rendered half dead by being stung. Many of the fossores are called sandwasps. The sub-tribe is divided into eight families: (1) Scoliadæ, (2) Sapygidæ, (3) Pompilidæ, (4) Sphecidæ, (5) Bembicidæ, (6) Larridæ, (7) Nyssonidæ, and (8) Crabonidæ.