Atrusca bulbacea (Kinsey, 1936)

Figs 89–102

Synonymy
Cynips (bulboides) bulbacea Kinsey, 1936: 152, female, gall.
Atrusca bulbacea (Kinsey): Weld 1952: 313

Types examined

HOLOTYPE female Cynips bulbacea (bulboides) “Rio Verde 14w S.L.P. 6000’ Gall 12.4.31, 4 fms. 1.8.32”, red “Cynips bulbacea, Holo- Paratype”. Cynips (bulboides) bulbacea: 4 PARATYPE females “Rio Verde 14w, SLP 6000’, Mex., gall 12.4.31, 4 fmales 2.15.32.”, “Q. polymorpha Kinsey coll.”, red label “Cynips bulbacea. Paratype”, deposited in the general collection in AMNH, NYC, examined by GM.

Gall (Fig. 102)

A bulboid gall as described for other species of the complex. Mature galls rosy or yellow brown, noticeably blue with a puberulence, occasionally unspotted but almost always well marked, in some cases conspicuously marked with slightly raised spots and ridges of purple, up to 25 mm, in average 18 mm in diameter.

Biology

The asexual generation is only known to induce leaf galls on Q. arizonica (= Q. sacame Trel.), Q. laeta, Q. magnoliifolia (= Q. macrophyla), Q. polymorpha.

Distribution

Mexico: San Luis Potosí, Tamaulipas

- 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)^©