Dros moreliense (agamic)

Dros perlentum (agamic)

Dros picatum (agamic)

Dros sessile (agamic)

Dros viscidum (agamic)

Dros moreliense, comb. rest (=D periscele, n. syn.)

[Photos of this gall appear on page 6 of the pdf]

Basal stem conical, cup-shaped body expanding gradually from the stem; the upper edges of the gall are thin, which means that the gall does not retain a circular outline on the top; color varies between red and brown. 

Galls small (up to 5.6 mm in diameter and 7 mm in height), sometimes very conical


Dros perlentum, comb. rest. (=D petasum, syn nov)

[Photos of this gall appear on page 6 of the pdf]

Basal stem uniformly cylindrical, cup-shaped body abruptly expanding from the stem; the upper edges of the gall are thick, which causes a circular border to persist; yellowish-brown or reddish color.


Dros picatum, comb. rest. (=D repicatum, n. syn.)

[Photos of this gall appear on page 6 of the pdf]

Basal stem conical, cup-shaped body expanding gradually from the stem; the upper edges of the gall are thin, which means that the gall does not retain a circular outline on the top; color varies between red and brown.

Galls large (up to 10 mm in diameter and 11 mm in height), never strongly conical 


The taxonomic position of the Dros species north of Mexico is discussed, concluding than at least two species belong to the genus Dros: D. sessile (Weld, 1927) and D. viscidum (Weld, 1944).

Restablecimiento del género Dros Kinsey (Hymenoptera: Cynipidae: Cynipini) como género válido para especies americanas