130 
Indiana University Studies 
Neuroterus subgeniis Pseudoneuroterus, new subgenus 
Figure 8 
FEMALE. — Eyes small; cheeks broad and protruding beyond the 
eyes; malar space rather narrow, with a shallow, irregular furrow; face 
rather heavily hairy; antennae almost uniformly dark brown, with 14 
segments, the third hardly longer than the fourth; thorax robust, as 
high as wide, half again as long as broad; mesonotum in part smooth 
and naked, in part coriaceous, finely punctate and rather heavily hairy, 
most so along the shallow but evident traces of the parapsidal grooves, 
medianly, and along the margins; scutellum rather broad, a little longer 
than wide; mesopleurse wholly coriaceous, hairy on the edges; abdomen 
lather larger than the thorax, moderately angulate, distinctly elongate, 
well produced dorsally; the ventral spine short but distinct; the tarsal 
claws of moderate weight, simple; wings quite clear, entirely ciliate tho 
the front margins are short ciliate; areolet moderately large, extending 
in large part to one side of the apex along the cubitus; cubitus reaching 
the basalis below the midpoint; radial cell- quite narrow, with the termi- 
nal portion of the subcosta considerably prolonged; the first abscissa 
rather angulate; length 2. 2-2. 8 mm. 
GALL. — A good-sized, woody, stem swelling. Polythalamous, with 
a good many larval cells. A gradual swelling of the stem, up to 50. 
mm. in length and 15. mm. in diameter. On Quercus cerris. 
RANGE. — Europe and adjacent Asia (and northern Africa?). 
TYPE. — Cynips macroptera llaTtig=N euroterus {Fseudoneurote.rus) 
macropterus. 
The only insects which I have seen for this subgenus 
belong to the type species, and as far as I can judge from 
the literature no other related species is yet known. I have 
a good series of macropterus from Italy (Trotter det.) and 
material without designated locality and determined by G. 
Mayr. Most authors have considered this a Neuroterus, altho 
Mayr did place it in Dryophanta. The insect is unique in 
many respects, particularly the hairy head and thorax and 
the prolonged terminal portion of the subcosta. The traces 
of parapsidal grooves, size, and other details relate this species 
to Spatheg aster, but the head, eye, and antennal characters, 
the pubescence, radial cell, and simple tarsal claws separate 
macropterus as distinct from other European species. 
The insect of this species is said to emerge from October 
to December, which is several months premature for an 
agamic generation. Dalla Torre and Kieffer add that emer- 
gence may be delayed one or two years. The alternate genera- 
tion has not yet been connected with macropterus. 
