Xanthoteras ornatum (sexgen)

Callirhytis tubicola (agamic)

Disholcaspis q-margarettae-bullet-gall (agamic)

Amphibolips ellipsoidalis

Biorhiza caepuliformis (agamic)

Amphibolips quercusspongifica (sexgen)

Andricus texanus (agamic)

Synergus lignicola

Amphibolips confluenta (agamic)

Spindle-shaped, covered with a golden brown mass of short filaments; 6 mm wide by 11 mm long, widest slightly above the middle, distinctly tipped apically. Covered with a dense compacted mass of filaments, each filament short, wholly flattened with a slender, narrow blade 2 mm long, the tips purplish when fresh. The central stem is swollen to form a thin-walled, empty larval chamber, apparently monothalamous. A bud gall, or on leaves, attached to the end of the mid-rib, on Quercus breviloba.

Callirhytis tubicola

Cynips tubicola
Andricus texanus, new synonymy

[Cynips rugosa is listed as a synonym of Disholcaspis quercusglobulus]

Andricus ellipsoidalis

Amphibolips ellipsoidalis

Produce bud galls on Quercus falcata, palustris.

Sphaeroteras caepuliforme n. comb.

Gall on several red oaks

Biorhiza caepuliformis

IN, IL, MO, AR, TX, NY, MD, VA, FL

Amphibolips spongifica (Osten Sacken)

Cynips q spongifica
Cynips spongifica
Cynips q coccineae
Amphibolips carolinensis
Amphibolips longicornis
Trissandricus maculipennis

Gall on Q coccinea, velutina, marilandica

Ontario to IL; south to VA. 

Synergus davisi (Beutenmuller)

Andricus davisi Beutenmuller 

NJ. Guest in gall of Callirhytis gemmaria (Ashmead). 

Amphibolips confluenta (Harris)

Cynips confluentus Harris
Cynips aciculata  Osten Sacken

Range: Toronto to Ill, IO, KS; MA to VA. Gall on various red oaks.


Hymenoptera of American north of Mexico: Synoptic catalog (1951)