Druon protagion Kinsey, 1937, comb. rev.

Druon protagion Kinsey, 1937: 61, female, gall.
Druon polymorphae Kinsey, 1937: 60, female, gall, syn. nov.
Druon malinum Kinsey, 1937: 58, female, gall, syn. nov.
Andricus polymorphae (Kinsey): Weld, 1952a: 308.
Andricus protagion (Kinsey): Weld, 1952a: 309.
Andricus malinum (Kinsey): Weld, 1952a: 307.

Gall (Fig. 138). Compact clusters of cells (most often 3–4, sometimes more) covered with short, compact, brownish-yellow, russet, or bright purplish-brown woolly pubescence that darkens with age; pubescence usually covering the individual larval cells, although the tips of the cells are sometimes exposed; single clusters circular, closely compact, averaging around 10 mm in diameter and 8 mm high, but larger agglomerations of clusters oval or more elongate and up to 30 mm long. The larval cells rather stout but elongate, averaging about 3.0 mm long.

Biology. Only the asexual generation is known, which induces galls on Q. rugosa (= Q. conglomerata), Q. potosina and Q. polymorpha (all Section Quercus, Series Leucomexicanae); galls mature in late autumn, adults emerge from February of the following year, with most emerging in March–April.

Distribution. Mexico: Michoacan, San Luis Potosi, Tamaulipas.

- Victor Cuesta-Porta, George Melika, James Nicholls, Graham Stone, Juli Pujade-Villar: (2022) Re-establishment of the Nearctic oak cynipid gall wasp genus Druon Kinsey, 1937 (Hymenoptera: Cynipidae: Cynipini), with description of five new species^©