1. EHARA, S. and T. GOTOH (1991) Int. J. Acarol. 17: 9-12.
2. EHARA, S. and T. GOTOH (1992) Appi. Entomol. Zool. 27: 107-115.
3. GULDEMOND, J. A. and H. A. EGGERS-SCHUMACHER (1989) Z. Zool. Syst. Evol.-forsch. 27: 14-25.
4. IZAWA, H., Mh. OSAKABE and S. MORIYA (1992) Jpn. J. Appi. Entomol. Zool. 36: 58-60 (in Japanese with English summary).
5. MENKEN, S. B. J. and S. A. ULENBERG (1987) Agric. Zool. Rev. 2: 305-360.