3 88 
The Ohio Naturalist. 
[Vol. XV, No. 2, 
Fig. 58. Fraxinus americana affected by the mite Eriophyes 
fraxini Garman. 
Phytoptus fraxini Garman, 12th Rep. St. Ent. Ills. 
Cook, Ins. Galls Ind. 862. 
Leaf gall, hemispherical, projecting on upper surface and show¬ 
ing trichomatous (fuzzy) opening below. Heavily clustered. 
Green, later discoloring. 1-2 mm. diameter. Not common. 
Rye Beach, July 19. 
Fig. 59. Stachys aspera affected by a gall-gnat, undetermined. 
Bulbous stem enlargement, usually at base of petioles, which 
are often involved. Size various, 5-20 mm. diameter. Color 
normal. The gall is thoroughly tunneled by the orange larvae 
before they emerge. Common. Late July. 
Fig. 60. Teucrium canadense affected by a gall-gnat, 
undetermined. 
Stem gall of the same general character as the preceding, and 
like it, probably unreported. May be on main stem, petiole 
or peduncle, singly or in chains. 5-8 x 8-20 mm. Fairly com¬ 
mon. July 22. 
Fig. 61. Cephalanthus cornutus affected by the mite 
Eriophyes cephalanthi Cook. 
(Identification by Mr. Nathan Banks). 
Leaf gall of minute size, usually so abundant as to give leaf 
a granular appearance. Evident as small hemispherical pro¬ 
jection from upper surface, open beneath and lined copiously 
with fine fuzzy (trichomatous) growth. Young leaves are fre¬ 
quently seriously deformed and stunted by these galls. Common. 
Mid-July. 
Fig. 62. Solidago canadensis affected by the trypetid fly 
Eurosta solidaginis Fitch. 
Acinia solidaginis Fitch, 1st Rep. Ins. N. Y. 771. 
Tephritis asteris Harris. 
Trypeta solidaginis Cook et al. 
Stebbins, Bull. 2, Springfield Mus. 51. 
Spherical stem gall, with a single central larval chamber, 
containing a maggot. Green, smooth, 2 cm. in diameter. Fairly 
abundant, especially at Huron. 
Fig. 63. Solidago canadensis affected by the moth Gonori- 
moschema gallae-solidaginis Riley. 
Gelechia gallae-solidaginis Riley, 1st Rep. Ins. Mo. 173. 
Stebbins, Bull. 2, Springfield Mus. 51. 
Stem gall, being an elongate spherical to spindle-shaped 
swelling, normal color, containing single lepidopterous larva in 
large central chamber. 30-40 mm. long, and 10-20 mm. wide. 
Common. 
