Chiosperma turgidum Gagné, new species

Figs 6, 32–41.

Description. Adult: Wing (Fig. 8) length: male 5.6–6.0 (n=7, avg.=5.7); female 4.7–5.3 mm (n=6, avg.=5.1). Head as in Fig. 33, palpus 1- or 2-segmented, antennal flagellomeres as in Figs 34–35. Acropods as in Figs 36–37. Male terminalia as in Figs 41 –42. Female postabdomen as in Figs 32, 39.

Pupa. Anterior segments (Fig. 38) as in the generic description.

Larva, third instar. Spatula lacking. Length of the one poor specimen, ca. 2.5 mm.

Material examined. HOLOTYPE: male, from Symphoricarpos albus, Spokane, Washington, 25.iv.1997, D. Kinateder . Paratypes: 5 males, 6 females, 3 pupae and 1 larva, same data as holotype .

Etymology. The specific name turgidum (Latin for swollen) refers to the enlargement of host's buds caused by this species.

Life history. This species is responsible for an elongate, swollen bud gall (Fig. 3) on Symphorocarpos albus . Buds are enlarged, about 5 mm wide by 8–10 mm long, and do not open.