Urocerus augur Klug.



From: Kolk A., Starzyk J. R., 1996: The Atlas of Forest Insect Pests
(Atlas skodliwych owadów lesnych) - Multico Warszawa, 705 pages. Original publication in Polish. English translation provided by Dr. Lidia Sukovata and others under agreement with The Polish Forest Research Institute.



Occurrence: Widespread in Europe, except the northern parts, also in the central Asia and Morocco.

Host plants: Mainly the common fir, rarely the Norway spruce and Scots pine.

Morphology: The body length of males is 17-20 mm, while females usually are bigger, 18-40 mm in length. The body is elongated, cylindrical. The head is yellow, sporadically black in the front, but in this case always yellow behind eyes. Females are reddish-yellow. The ventral part of abdomen is brownish or black. Dorsal third to seventh segments are black with yellow margins. Legs are yellow with a brownish femora and distal parts of tibiae. The male adult is brownish-yellow with reddish legs. Antennae are filiform, long. Wings are transparent, hyaline. Larvae are whitish with the brownish head and three pairs of very short legs. There is the short dark spine on the apex of larva's abdomen. The mature larva is up to 40 mm long. The pupa is whitish, 30-35 mm long.

Biology: Similar to U. gigas.

Damage: Similar to U. gigas, but rarely, thus of a low economic importance.

Preventive measures and control: Similar to U. gigas.

Adults, Diagram
Image by Robert Dzwonkowski

Habitat, Lidia Sukovata, Polish Forest Research Institute
Image by Stanislaw Kinelski

Adult(s), Female
Image by Stanislaw Kinelski

Adult(s), Male
Image by Stanislaw Kinelski

Adult(s), female
Image by Stanislaw Kinelski

Adult(s), Front view of female
Image by Stanislaw Kinelski

Adult(s), Female showing ovipositor
Image by Stanislaw Kinelski

Adult(s), Tip of male abdomen
Image by Stanislaw Kinelski

Galleries, Early larval galleries
Image by Stanislaw Kinelski

Larva(e), Larva in gallery
Image by Stanislaw Kinelski

Galleries, Larval galleries and pupal chamber
Image by Stanislaw Kinelski

Galleries
Image by Stanislaw Kinelski

Galleries, Larval galleries
Image by Stanislaw Kinelski

Damage, Adult exit holes on fir
Image by Stanislaw Kinelski

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