Indigenous and introduced seed chalcids in Denmark - with a revised key to the Danish species (Hymenoptera: Torymidae).

Jensen, T. S., Ochsner, P., (1999). Entomologiske Meddelelser 67(2), 47-56. English language

Insect damage to cones of exotic conifer species introduced in arboreta I. Interspecific variations within the genus Picea.

Ros, N. da, Ostermeyer, R., Roques, A., Raimbault, J. P., (1993). Journal of Applied Entomology 115(2), 113-133. English language

Megastigmus atedius: a newly discovered pest of eastern white pine seed in North America.

Speers, C. F., (1975). Annals of the Entomological Society of America 68(3), 559-560. English language

On some British Megastigmus (Hym., Torymidae), with a revised key to the West European species.

Boucek, Z., (1970). Entomologist's Gazette 21(4), 265-275 pp. English language

Nasiennictwo lesne. / [English title not available]

(1949). Nasiennictwo lesne. Instytut Badawczy Lesnictwa, Warszawa, Poland. Polish language

Megastigmus flies attacking conifer seeds.

Hussey, N. W., (1954). Forestry Commission Leaflet.(No. 8), 10 pp. English language

Revised descriptions of three Megastigmus species (Hym. Torymidae) associated with seeds of silver fir.

Hussey, N. W., (1954). Entomologist's Monthly Magazine 90, 223-225. English language

Hmyzi skudci semen nasich lesnich drevin. / [English title not available]

Cermak, K., (1952). Hmyzi skudci semen nasich lesnich drevin. Prssce Vyskymneho Ustadatelstvi Lesnavu Naklickych, Brazda, Praha. Czech language

Taxonomic and biological investigations in genus Megastigmus, with particular references to the taxonomy of Nearctic species (Hymenoptera, Chalcidoidea, Callimomidae).

Milliron, H. E., (1949). American Naturalist. 41, 257-420. English language

Szkodniki nasion jodly wystepujace w poludniowej Polsce. / [English title not available]

Kozikowski, A., Kuntze, R., (1936). Sylwan A. 54, 93-112. Polish language