Posted by Steve Scholnick on 20-02-2021 00:17
#1
female fungus gnat found near the Potomac River. Keys out to
Dziedzickia using the Manual of the Nearctic Diptera and in Shaw & Fisher's 1952 paper on "
Fungivoridae". MND says "
Dziedzickia is undoubtedly a complex of several genera." and the genus appears to include species with and without wing vein R2+3 (from Baxter, 1989: "The Nearctic species
D. longicornis (Coquillett),
D. polyzona (Loew),
D. separata (Johannsen), and
D. vittata (Coq.) differ from
Hadroneura,
D. marginata, and
D. pentastylobia in the absence of vein R2+3." (
https://www.jstor...e/25085060)). body length ~4mm
Not every character state in each MND couplet fits so I'd appreciate confirmation/correction of the ID.
Thanks in advance for the help.
Steve
dorsal view of right wing; ventral view of left
Edited by Steve Scholnick on 09-10-2022 22:07