Valid Names Results

Phenacoccus longoi Russo, 1994 (Pseudococcidae: Phenacoccus)

Phenacoccus longoi Russo 1994: 279. Type data: ITALY: Canzaro, Saint Mary Abbey (Serra San Bruno), on Abies alba. Holotype, female, Type depository: Catania: Istituto di Entomologia Agraria, Italy; accepted valid name Illustr.

Families: 1 | Genera: 1

Countries: 2

Systematics: This species is very similar, perhaps conspecific with Phenacoccus arambourgi Balachowsky, 1954 and differs in the well development of all 18 pair of cerarii (some of sclerotized platess) and in strong slerotization of cuticle under anal cerarii. (Danzig & Gavrilov-Zimin, 2014)
Biology: P. longoi completes one generation per year. The female settles under the dry cork layer of the bark. Its body is covered with white waxy filaments and produces small drops of honeydew in all the nymphal stages and the adult. The adult females appear on the trees in early May, searching for a place to oviposit, which commences 10-15 days later. P. longoi females lay 82-135 eggs (mean 98, n=80), under the body. The adult females produce protective waxy filaments and cover the eggs. The oviposition period lasts about 20 days. The crawlers appear 20-25 days later, disperse to younger branches and feed until late June and July. The 1st instar nymphs undergo a molt in late August and then overwinter as a 2nd instar nymph.
General Remarks: Good description and illustration of the adult female given by Russo (1994).