G. it. Ent., 11 (53): 183-234
May 2006
Torneutini of Argentina: New records, host plants,
and comparison of their larval and adult biologies with those of
Prioninae and Trachyderini (Coleoptera: Cerambycidae)
by
OSVALDO R. DI IORIO
Abstract - New records are given for Dragomiris quadricornutus Gounelle, 1913, Dragoneutes baculus (Gounelle, 1913), Macellidiopygus debilis Gounelle, 1913, Psygmatocerus pubescens Bruch, 1926, Ranqueles gounellei Bosq, 1947, Ranqueles mus Gounelle, 1906, Scapanopygus cinereus Gounelle, 1913, Spathopygus eburioides (Blanchard, 1843) and Torneutes pallidipennis Reich, 1837. Larval tunnels, pupal chambers and emergence holes are illustrated and described for Dragomiris quadricornutus (male and female), Ranqueles gounellei, Scapanopygus cinereus, Torneutes pallidipennis (male and female), and one "trace-maker species" (larvae and adults not found). Adult behaviour of Dragomiris quadricornutus is described. The death-feigning posture of Ranqueles gounellei is described and illustrated for the first time. First and last instar larva girdlings, new host plant records, phenology, adult mating behaviour, oviposition, parasitoids, inquilines and predation of larvae and adults by birds are reported for Torneutes pallidipennis. It is verified that more than one species of Torneutini may infest a single plant. Host plants, sympatry and cohabitation, oviposition, larval tunnels and girdlings, emergence holes, superposition of generations, larval survival, copulation, flying and predation, host plant reinfestation, and comparison with Prioninae and Trachyderini for larval and adult biologies are widely reported for Torneutini.
