Caryomyia levicrustum
Gagne Description 2
Common, on Eucarya hickories; on lower leaf surface between or on veins, usually clustered; height 2.2-3.0 mm, conical at base, cylindrical or flaring beyond, about as wide as long, the apex flat or shallowly to deeply convex, the walls surrounding any apical concavity variously flared outwards, evenly cylindrical, or almost closed to form partial false chamber, the center of apex with short umbo; surface glabrous, not sticky, green to tan; base conical, area of contact with leaf surrounded by thin leaf exfoliation; wall firm, brittle, thin basally, usually slightly thicker apically, larval chamber shiny, smooth, with longitudinal ridges. A variety of gall shapes is included under this heading, but the variation involves only the structure above the larval chamber and the galls are otherwise similar in color and lack of sticky exudate.
Gagne Biology Note 2
In central Maryland galls were noticed as early as mid-June. Galls with second and third instars could be found from then through August. In late March and early April, pupae break out from the side of the galls near the base.
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 taxon page
- Animal Diversity Web
- Biodiversity Heritage Library
- BOLD Systems BIN search
- BugGuide
- CUIC Insect Images
- Field/Photo ID for Flies
- Global Biodiversity Information Facility (GBIF)
- Guide to Hickory Midge Galls
- Guide to Hickory Midge Galls
- Maryland Biodiversity Project
- NatureServe Explorer 2.0
- Systema Dipterorum
iNat Map
| Carya | floridana, glabra, laciniosa, myristiciformis, ovata, pallida, texana, tomentosa |
|---|---|
| Texture | hairless |
| Alignment | erect |
| Detachable | no, yes |
| Location | between veins, leaf midrib, leaf veins (including midrib), lower leaf |
| Walls | thick, thin |
