1. BAI, B. and M. MACKAUER (1990) Oviposition and host-feeding patterns in Aphelinus asychis (Hymenoptera: Aphelinidae) at different aphid densities. Ecol. Entomol. 15: 9-16.
2. BOYLE, H. and E.M. BARROWS (1978) Oviposition and host feeding behavior of Aphelinus asychis (Hymenoptera: Chalcidoidea: Aphelinidae) on Schizaphis graminum (Homoptera: Aphididae) and some reactions of aphids to this parasite. Proc. Entomol. Soc. Wash. 80: 441--455.
3. CARVER, M., P. J. HART and P.W. WELLINGS (1993) Aphids (Hemiptera: Aphididae) and associated biota from the Kingdom of Tonga, with respect to biological control. Pan-Pacific Entomol. 69: 250-260.
4. CATE, R.H., Y.L. ARCHER, R.D. EIKENBARY, K. J. STARKS and R.D. MORRISON (1973) Parasitization of the greenbug (Schizaphis graminum: Hem., Horn., Aphididae) by Aphelinus asychis (Hym., Aphelinidae) and the effect of feeding by the parasitoid on aphid mortality. Environ. Entomol. 2: 549-553.
5. CATE, R.H., J.R. SAUER and R.D. EIKENBARY (1974) Demonstration of host feeding by the parasitoid Aphelinus asychis (Hymenoptera: Eulophidae). Entomophaga 19: 479-482.