Gnorimoschema powelli

Family: Gelechiidae | Genus: Gnorimoschema
Detachable: integral
Color: brown, green
Texture:
Abundance:
Shape: spindle
Season: Spring, Summer
Related:
Alignment: integral
Walls: thick
Location: stem
Form: abrupt swelling
Cells: monothalamous
Possible Range:i
Common Name(s): Desert Broom Stem Gall Moth
Synonymy:
Name
Notes
Neoschema powelli

New taxa and faunistic records of the tribe Gnorimoschemini from the Nearctic Region (Lepidoptera, Gelechiidae)

The moths are nocturnal and fly in November and December, rarely into January. Presence of the larvae causes formation of persistent stem galls on Baccharis sarothroides (Asteraceae) that are similar in form to those of Gnorimoschema baccharisella Busck on B. pilularis. Mature galls of G. powelli are more or less uniformly spindle-shaped, ranging in size from 8 x 13 mm to 12 x 17 mm in outside diameter and height ... Frass was tightly packed at the upper end of the chamber, retained by frail silken mesh. At maturity larvae left the galls via an emergence hole about 1 mm in diameter, usually excavated at or below the middle of the gall, and dropped to the ground for pupation ...

- Povolný, Dalibor F. : (1998) New taxa and faunistic records of the tribe Gnorimoschemini from the Nearctic Region (Lepidoptera, Gelechiidae)©


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