Caryomyia cynipsea
Gagne Description 2
Rare, on Eucarya hickories; on lower leaf surface, along midrib; 2.6-5.0 mm in height, irregularly spheroid, smooth, hairless, yellow turning brown; base with irregular, shallow, central excavation; woody, polythalamous, with numerous, discrete, irregularly ovoid, smooth walled, larval chambers. This is the only polythalamous gall formed by a Caryomyia. Some other species, e.g., C. aggregata, may appear to be so because their galls will occasionally be found so crowded as to be partially fused, but below each larval chamber will be a basal connection to the leaf. The gall of C. cynipsea has a single connection to the vein.
Gagne Biology Note 2
In Spencerville, MD, on July 7, 2004, two separate young galls were found, each containing many first instars in discrete chambers, showing that the gall is truly polythalamous (Fig. 162). Third instars were found in galls from the same site the same year in mid-September. The following spring 3 females were reared, all emerging from separate exit holes from one of the galls.
Sources and Credits
- (c) Adam Kranz, all rights reserved, uploaded by Adam Kranz
- (c) Adam Kranz, some rights reserved (CC BY-SA)
More Info
iNat Map
| Carya | floridana, glabra, laciniosa, myristiciformis, ovata, pallida, texana, tomentosa |
|---|---|
| Texture | hairless |
| Alignment | erect |
| Detachable | yes |
| Location | leaf midrib, lower leaf |
| Walls | thick |
