Ricerche sulla biologia riproduttiva e sull'ecologia dei Macrochelidi. II. Alcuni aspetti della biologia riproduttiva di Macrocheles matrius (Acarina: Mesostigmata)
In the present paper we describe some experiments on the mite Macrocheles matrius aimed at investigating: a) the possible role of sperm exhaustion in the laying of unfertilized eggs in the last part of the female reproductive period; b) the relationship between age and female receptivity and inseminability. The results obtained show: 1) the number of fertilized eggs laid by a single female does not increase if she mates more than once during her life; 2) with increasing age the receptivity and...