Le genre Messor au Maroc (Hymenoptera. Formicidae).

Cagniant H, Espadaler X (1997) Le genre Messor au Maroc (Hymenoptera. Formicidae). Annales de la Société Entomologique de France 33:419-434.

Pheidole williamsi (Hymenoptera, Formicidae) parasitized by Myrmicinosporidium durum (Fungi) on San Salvador Island (Galápagos Islands).

Espadaler X (1997) Pheidole williamsi (Hymenoptera, Formicidae) parasitized by Myrmicinosporidium durum (Fungi) on San Salvador Island (Galápagos Islands). Sociobiology 30:99-101.

Hymenoptera 2: Formicidae.

Espadaler X (1997) Hymenoptera 2: Formicidae. Cat. entomof. aragon 13: 13-21.

La sistemática de los sistemáticos.

Espadaler X (1997) La sistemática de los sistemáticos. Boletín SEA 17:37-38.

Soil surface searching and transport of Euphorbia characias seeds by ants.

Espadaler X, Gómez C (1997) Soil surface searching and transport of Euphorbia characias seeds by ants. Acta Oecologica 18:39-46.

Tapinoma pygmaeum (Dufour, 1857) (Hymenoptera, Formicidae), not a rare species.

Espadaler X, García-Berthou E (1997) Tapinoma pygmaeum (Dufour, 1857) (Hymenoptera, Formicidae), not a rare species. Orsis 12:89-92.

Les Leptothorax, Epimyrma et Chalepoxenus du Maroc (Hymenoptera: Formicidae). Clé et catalogue des espèces.

Cagniant, H, Espadaler X (1997) Les Leptothorax, Epimyrma et Chalepoxenus du Maroc (Hymenoptera: Formicidae). Clé et catalogue des espèces. Annales de la Société Entomologique de France 33:259-284.

Redescription of Leptopthorax schaufussi (Forel 1879) (Hymenoptera, Formicidae).

Espadaler X (1997) Redescription of Leptopthorax schaufussi (Forel 1879) (Hymenoptera, Formicidae). Orsis 12:101-108.