Caryomyia albipilosa

Gagne Description 2

Common, a spring gall, on both Apocarya and Eucarya hickories; found singly or in groups on lower leaf surface between veins; 3.5-5.0 mmin height, elongate-conical, narrowing gradually from base to pointed apex; surface whitish green, eventually turning brown, obscured except at apex by white hairs longer than gall diameter; gall base shallowly concave; wall uniformly thin, becoming brittle; larval chamber rough with weak longitudinal ridges. This gall differs from that of C. striolata only in having a thick covering of long, white hair.

Gagne Biology Note 2

In central Maryland this species is one of two spring galls with larvae developing between late April and early June. A series of adults emerged from caged previous year's galls on 16-18 April when hickory leaves were unfurling. A specimen of Lestodiplosis, a predaceous cecidomyiid, was reared with this series of adults. Very small, unidentifiable galls were evident on May 17, 2005. Circled with a marker, these traces were full-grown galls of C. albipilosa with full- grown larvae on May 24. Galls still on the leaves after mid-June are parasitized or contain dead lar- vae. See under C. striolata for more details on timing of galls.

Sources and Credits

  1. (c) Adam Kranz, all rights reserved, uploaded by Adam Kranz
  2. (c) Adam Kranz, some rights reserved (CC BY-SA)

More Info

iNat Map

Carya aquatica, cordiformis, floridana, glabra, illinoiensis, laciniosa, myristiciformis, ovata, pallida, palmeri, texana, tomentosa
Texture hairy
Alignment erect, leaning
Detachable yes
Location between veins, lower leaf
Walls thin