Orgyia trigotephras BOISDUVAL 1828

Patočka, J. & Turčáni, M., 2008, Contribution to the Description of Pupae of the Western Palaearctic lymantriids (Lepidoptera, Lymantriidae), Linzer biologische Beiträge 40 (1), pp. 901-920 : 907-908

Orgyia trigotephras BOISDUVAL 1828 (figs 39-45, 47-50)

M a t e r i a l e x a m i n e d:1, 1 (incomplete) from Turkey.

P u p a: 9.5 3.0 mm (male) 15 6.0 mm (female), stout and rounded anteriorly and strongly tapering caudad and pointed. Coloration brown, exuvia brighter, glossy. Sculpture fine at majority. Setae on notum and abdomen fine, long yellowish, not present on head. Central part of abdominal segments 1-4 with white scales on tangs, these ones circle-like in view from above. These scales more-less separated to two groups in centre of dorsum. Cremaster with individual secondarily setae and group (brush) of brown and medium in length setae in shape of hook. Labrum round at the end, semicircle. Labium wide almost as labrum and approximately 2 longer. Maxillae with short and separated pointed lobe at end. These ones the same in width as labial palpi and shorter than labium including palpi. Prothoracic coxae at least 3 longer than labium, with wider base and narrower projections on male. These ones (coxae + femora) slightly cut out on base in centre. Behind them, visible also much smaller and pointed mesothoracic coxae. Antennae of male medium in length, round at the end and tapering, but separated from each other by prothoracic legs, which extend beyond them conspicuously. Not concealed ends of mesothoracic legs extend beyond them conspicuously, but not reach to not concealed ends (relatively long and frontad narrowed) of metathoracic legs. Forewings join to each other shortly. Antennae of female conspicuously shorter than antennae of male, pupa of female bigger and stouter, shells of extremities and appendages missed on examined pupa. Visible part of oculus relatively big. Thoracic spiracle big, slit-like, darkly bordered. Sculptured field bordered by wrinkle present behind it. Metanotum medium deep, pointly round cut-out, its frontal projections round. Not concealed ends of hindwings extend far beyond caudal margin of abdominal segment 3 and these ones visible also on ventral side of pupa. Abdominal spiracles narrow elliptical, dark brown and brightly flanged. Anal field big, elevated, transition from it to the base of cremaster very steep. Cremaster differentiated, long and slender, slightly tapering and slightly round at the end without distinctive sculpture. The end of its dorsal side skewed in lateral view.

Larva feeds polyphagously, mainly on broadleaved trees like Quercus, Cistus, Coriaria spp. This species occurs in western Mediterranean (from Italy to west, and also in northwestern Africa) and in Asia Minor.