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Asís, J. D., Gayubo, S. F. ; Tormos, J.: Preimaginal stages of Iberian Sphecidae V. Sphex rufocinctus Brullé and Ammophila laevicollis Ed. André (Hymenoptera, Sphecidae)

However, the length/width ratio of the mandibles is similar to that observed in Ammophila harti and Ammophila pruinosa CRESSON, 1865, and the ratio between the size of the galeae and the maxillary palpi is similar to that observed in Ammophila urnaria DAHLBOM, 1843, and Ammophila alberti HALDEMAN, 1952. The only species with European distribution that has been described until now is Ammophila campestris, with which A. laevicollis shares certain similarities; the fact that GRANDI (1926) did not offer exact measurements of the different cephalic structures hinders more detailed comparisons between these two species. BERLAND, L. (1925): Faune de France 10. Hyménoptères Vespiformes I. - Libraire Faculté Sciences, Paris: 364 pp. EVANS, H.E. (1959): Studies on the larvae of digger wasps (Hymenoptera, Sphecidae). Part V: Conclusion. Trans. Amer. EntomoL Soc. 85:137-191, pis. 18-24. EVANS, H.E. (1964): Further studies on the larvae of digger wasps (Hymenoptera, Sphecidae). - Trans. Amer. EntomoLSoc. 90: 235-299, pis. 8-19. EVANS, H.E. & CS. LIN (1956): Studies on the larvae of digger wasps (Hymenoptera, Sphecidae). Part I: Sphecinae..-Trans. Amer. EntomoL Soc. 81:131-153, pis. 1-8. FABRE, J.H. (1856): Etude sur l'instinct et les métamorphoses des sphégiens.-Ann. Sei Nat. 6(4): 137-183. FABRE, J.H. (1879): Souvenirs entomologiques (1 série).. Etudes sur l'instinct et les moeurs des insectes. Sciences Nat. (Nouvelle edition illustrée), 1985, Compiègne: 229 pp. GRANDI, G. (1926): Contributi alla conoscenza della biológia e della morfológia degli imenotteri melliferi e predatori III. -Bol Lab. ZooL Portici 19: 269-327. IIDA, T. (1967): A study on the larvae of the genus Sphex in Japan (Hymenoptera, Sphecidae). - Etizenia 19: 1-8. IIDA, T. (1969): Contributions to the Knowledge on the sphecid larvae in Japan (Hymenoptera), Part I. Kontyû 37(3): 272-279. TSUNEKI, K. & T. IIDA (1969): The biology of some species of the Formosan Sphecidae, with descriptions of their larvae (Hymenoptera). -Etizenia 37:1-21. Authors' addresses: Dr. J.D. A** Dr. S. F. Gayubo and Dr. J. Tormoi References Departement de Biológia Animal, Biológia Cellular, Genètica i Paratitotogia Facultat de Ciènces Biologique» Universität de Valencia Dr. Moliner, 50,46100 Burjassot, Valencia Spain Departamento de Biológia Animal y Parasitology Facultad de Biológia U n ivers i dad de Salamanca 37071 Salamanca Spain \