S. Mahunka szerk.: Folia Entomologica Hungarica 62. (Budapest, 2001)

FOLIA ENTOMOLOGICA HUNGARICA ROVARTANI KÖZLEMÉNYEK LXII 2001 pp. 127-131 A new species of cynipid gall wasp from Turkey (Hymenoptera: Cynipidae) G. Melika and G. N. Stone A new species of cynipid gall wasp from Turkey (Hymenoptera: Cynipidae) — A new species of cynipid gall wasp, Andricus askewi sp. n. from Turkey is described. Only females and galls of the parthenogenetic generation are known. Data on the diagnosis, distribution and biology of the new species are given. Key words: Cynipidae, gall wasp, Andricus, taxonomy, morphology, distribution, biology. Andricus Hartig, 1840 (Hymenoptera: Cynipidae, Cynipini) is a Holarctic genus of oak cynipid gall wasps with representatives in the Old World (Eurasia) and in North America. Approximately 120 species are known from the Western Palaearctic, particularly from Europe and Asia Minor. All of them induce galls on oaks. Andricus is easily distinguished from other genera of cynipid gall wasps by the long and slender ventral spine of the hypopygium, the prominent part of which is always more than 2.5-5.0 times longer than broad; scutum reticulate, punctate or coarsely rugose, but never transversely sculptured; tarsal claw with tooth; fully winged. We follow the current terminology of morphological structures (Gibson 1985, Ronquist & Nordlander 1989, Menke 1993, Fergusson 1995). Abbreviations for fore wing venation follow Ronquist & Nordlander (1989). Measurements and abbreviations used here include: F1-F12, 1st and subsequent flagellomeres; POD (post-ocellar distance) is the distance between the inner margins of the posterior ocelli; OOD (ocellarocular distance) is the distance from the outer edge of a posterior ocellus to the inner margin of the compound eye. Width of radial cell measured along 2r. Drawings were made with the aid of a Leica drawing tube. In this paper we describe a new species, Andricus askewi, and give some data on the distribution and biology of this species. Andricus askewi sp. n. (Figs 1-6) Description — Asexual (parthenogenetic) female: Head, mesosoma, metasoma, and legs uniformly red-brown; propodeum, scutellar foveae black, scutum with black spots. Head narrower than mesosoma, broader than high in front view, trapezoid; gena strongly