This is a picture of Andricus coronus on the North Tract of the Patuxent Research Refuge near Fort Meade, Maryland.
Rock Creek Stream Valley Park, S. of Twinbrook Parkway x Veirs Mill Road, Rockville, Montg. Co., Maryland; Kensington quad
This is a picture of Dryocosmus floridensis at Tuckahoe State Park in Caroline County, Maryland.
This is a picture of a leaf mine on a broad leaved goldenrod along the River Road Trail at Patapsco Valley State Park in Howard County, Maryland.
Dark areas had a brilliant purple iridescence when I shone a light on this moth, much more obvious than in these photos
The leafminer on Alleghany Chinkapin
Host plant at https://www.inaturalist.org/observations/116922327
Terek Sandpiper
Carmel River mouth
Monterey Co., California
2 Sep 1988
This was the first (and remains the only) California record of this old world species. It was seen by hundreds of people at the time and was very well publicized. I bet virtually every birdwatcher in California in 1988 saw this bird. The main photo shows it in some beach debris, while the 2nd photo shows the bird on the beach with a Willet in the background. The Terek is about the size of a Solitary Sandpiper.
There are occasional records of this species in Alaska, and on the Aleutians it is probably annual, but mainland U.S. records are very rare.
The blotch leafminer at the midrib on River Birch
Host plant at https://www.inaturalist.org/observations/116129663
This is a picture of a leafmine on a Common Chickweed at Tuckahoe State Park in Caroline County, Maryland.
About 4-6mm body length. On gravel bar of stream
Specimen #1028
Valva with outer spine directed ventro-distad. Aedagus with large spine and groups of 2 and 4 simple cornuti. Posteriormost FW PM spot not offset basad from adjacent spot.
The residents were out. It was this:
https://www.inaturalist.org/observations/24905900
This is a picture of Entoloma vernum at the Mckeldin Area of Patapsco Valley State Park in Carroll County, Maryland.
This is a picture of Neoerysiphe galeopsidis on a henbit deadnettle along Prince George Street near the United States Naval Academy in Annapolis, Maryland.
Upright isofacial leaves. Twigs with dense, white, nonglandular hairs. Nonglandular fruit.
This is a picture of Puccinia glechomatis on a ground ivy leaf on the North Tract of the Patuxent Research Refuge near Fort Meade, Maryland.
(Phylloxera sp.) North Tara Road, Dorchester County, Maryland. May 28, 2021. On hickory.
Found with a mix of bluegill x pumpkinseed hybrids, pure pumpkinseeds, and green sunfish; two of this variety were found
@billhubick @drkilmer @jimbrighton
Determined by Marc DiGirolomo/BugGuide:
https://bugguide.net/node/view/2099746
Found in cilantro from grocery store.
Observations are being conducted by a refuge volunteer in coordination with USFWS. No public access in hunt unit.
The only Milichiella species with males having an entirely black abdomen: Malloch, 1914
I think this is a male based on the shape of the abdomen and Becker's description: the frons narrows strongly towards the antennae (1/3 width of head in females) and the second abdominal segment is almost as long as the fifth (barely elongated in females). Also, the wings are quite milky in this specimen but are "less markedly so in the female" according to Malloch.
Adult Agabus taeniolatus collected from Fort Meade, Maryland by C.L. Staines. Specimen is in the North Carolina State University Insect Museum
On Impatiens capensis- https://www.inaturalist.org/observations/97589862
On woody debris. Cap 20 cm; flat, buff color, smooth. Strong odor.
two maples were the only thing in bloom at this location
Large numbers of these in the liquid of a Purple Pitcher Plant (Sarracenia purpurea).
Specimen #873
Tergite 8 with rounded posterior projection. Corpus bursae wall smooth.
Specimen #499
Left valva spine base has dorsal flange. Saccus is rounded to quadrate. Vinculum lacks a sclerotized rim ventrad of the setose lobe.
Determined by Ross Hill and Ken Wolgemuth/BugGuide:
https://bugguide.net/node/view/1275915#3223044
On Ilex opaca. Tentative ID.