Laboratory investigations of predation by Gamasellus racovitzai (Acarina: Mesostigmata) on Cryptopygus antarcticus (Insecta: Collembola) are described. The predator appeared to search at random, but, when contact with prey had been made, a rapid attack involved looping the forelegs over the prey to hold it whilst the chelicerae moved forward horizontally to puncture the side of the prey. The mean predation rate by deutonymphs, approximately one prey per predator per 12 days, was independent of prey density, but with adults this rate increased to about one prey per predator per 3 days. A study of leg geometry predicted a maximum prey size that could be captured: some experimental evidence suggested that mites selected prey near to this predicted size. The contribution of the laboratory results towards understanding the dynamics of field populations is discussed.
Columbus, IN—The Bartholomew County Sheriff’s Office and Columbus Township Fire and Rescue responded to a call on Friday morning in reference to a structure fire. When deputies arrived, they found an attached garage that was fully engulfed in flames.Mutual aid was called in from the German Township Volunteer Fire Department and the Clifford Volunteer Fire Department.Officials learned that because of the cold weather, an electric space heater was being used to warm the garage where the fire originated. The homeowner and her three children were reportedly at home at the time but were able to get out safely. Unfortunately, deputies say two dogs perished in the fire.