Ampelomyia viticola

Ampelomyia viticola, the grape tube gallmaker, is a species of gall midge found in the eastern United States and Canada.

He based the description on galls on Vitis and larvae found in the vicinity of Washington, D.C.[2] The magazine American Entomologist had a column where readers could ask for identifications.

In 1869 a reader from Piermont, New York, asked the editors about the crimson galls found on a grape leaf.

The editors, Benjamin Dann Walsh and Charles Valentine Riley, responded that in unpublished manuscripts of theirs they had given the galls the name Vitis lituus and noted they were made by a gall gnat in the genus Cecidomyia.

[7][1] In 1911, Ephraim Porter Felt incorrectly referred to this species as "Cecidomyia lituus Walsh",[5][1] In 1878, Osten-Sacken noted that "the gall Vitis-lituus Riley" was the same as his C.

[8] The specific epithet viticola is a Latin noun in apposition; it consists of the word vitis "grape vine" and the suffix -cola "one who inhabits".

The antennae are moderately long, stout, and biarticulate; the basal segment is disk-like, while the apical one has a length over twice its diameter.

Its posterior extremity is bilobed: the ventral portion bears stout, submedian, chitinous, upcurved processes, and each has an indistinct basal tooth anteriorly.

The face is armed with an irregular series of moderately large, conical, chitinous teeth.