Chiosperma turgidum Gagné, Gagne, 2016

Gagné, Raymond J., 2016, Three new genera and three new species of Nearctic Lasiopteridi (Diptera: Cecidomyiidae: Cecidomyiinae) from Asteraceae and Caprifoliaceae, and the tribe Rhopalomyiini subsumed under Oligotrophini, Zootaxa 4158 (3), pp. 403-418: 417

publication ID

http://doi.org/10.11646/zootaxa.4158.3.6

publication LSID

lsid:zoobank.org:pub:216AD21E-D9CC-4BD6-A0A9-A7C7F679FAF1

persistent identifier

http://treatment.plazi.org/id/039587BF-3177-BD43-AD84-FB543BBEF943

treatment provided by

Plazi

scientific name

Chiosperma turgidum Gagné
status

new species

Chiosperma turgidum Gagné   , new species

Figs 6 View FIGURES 4 – 6 , 32–41 View FIGURES 31 – 32 View FIGURES 33 – 39 View FIGURES 40 – 41 .

Description. Adult: Wing ( Fig. 8 View FIGURES 7 – 14 ) 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 View FIGURES 33 – 39 , palpus 1- or 2-segmented, antennal flagellomeres as in Figs 34–35 View FIGURES 33 – 39 . Acropods as in Figs 36–37 View FIGURES 33 – 39 . Male terminalia as in Figs 41 View FIGURES 40 – 41 –42. Female postabdomen as in Figs 32 View FIGURES 31 – 32 , 39 View FIGURES 33 – 39 .

Pupa. Anterior segments ( Fig. 38 View FIGURES 33 – 39 ) 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 View FIGURES 1 – 3 ) on Symphorocarpos albus   . Buds are enlarged, about 5 mm wide by 8–10 mm long, and do not open.