Atrusca strians (Kinsey, 1930)

Figs 558–571

Synonymy
Cynips centricola variety strians Kinsey, 1930: 304, female, gall.
Cynips (Atrusca) (centricola) strians Kinsey, 1936: 181.
Atrusca strians (Kinsey): Weld 1951: 638.

Types examined

HOLOTYPE female Cynips strians var. centricola “Bonnie, Ill. Gall 10.15.27”, “Q. alba, Kinsey coll.”, red “Cynips strians, Holo- Paratype”, deposited in AMNH, NYC, examined by GM.
Seven PARATYPE females “Morelia, 14E, Mich 7000’, Mex., galls 12.27.31, 234 females 3.22.32.”, “Q. conglomerata Kinsey coll.”, red label “Cynips spinifera Paratype”, deposited in the general collection in AMNH, NYC, examined by GM.

Gall (Fig. 571)

The gall is similar to all galls of Kinsey’s bella and dugesi complexes. Mature galls globular, always well spotted, brownish purple.

Biology

The asexual generation is only known to induce leaf galls on Q. stellata. Galls mature in late autumn; adults emerge from December.

Distribution

USA: Illinois.

- VICTOR CUESTA-PORTA, GEORGE MELIKA, MAR FERRER-SUAY, ALEXIS VERA-ORTIZ, JULI PUJADE-VILLAR: (2025) Review of the Nearctic and Neotropical genus Atrusca Kinsey, 1930 (Hymenoptera: Cynipidae, Cynipini)^©