Antistrophua bicolor Gill. l6l. Described from one specimen from Normal, Ill. The 
type in Ill. Nat.Hist.Sur. bears the date July 6,1884. Accession catalogue 
says: "From Si iphium in tegrifoliu m. 11 
Gall on Ambrosia L. - Ragweed 
Aulacidea ambrosiaecola (Ashm.). 181. "Issued Oct.18 and Jan.15. n . No galls 
were sent with the types to the U.S.Natl.Mus. From Kirkwood. Mo. 
No cynioid gall has since been found on this hoti plant. 
Gall on Taraxacum - Dandelion 
Gillettea taraxaci Ashm. 187* Fig.545* Fusiform enlargements of petiole, 
along midrib or at base of pedi/ncle. An European species on an introduced 
European host plant. Tar axacum of ficinale . 
Galls on Lactuca L. - Wild Lettuce 
Aulacidea tumida (Bass.). 186. Fig.545. Fusiform pithy stem swellings high on 
the stem of L actuca ca nadens is, bearing many leaves or branches. Dia.up to 
50 ran. 
Aulacidea annulate Kinsey. 182. Fig.546. From Sharon,Mass. Doubtfully distinct 
from the above. 
Aulacidea podagras (Bass.). 185. Fig.552. Knotty enlargements scattered along 
stem at bases of leaves. On Lactuca c anadensis . 
Aulacidea harringtoni (Ashm.). 185. Fig.550. H.L.Viereck "could see no 
difference between the type, captured at Ottawa, and paratypes of 
mul gegiicola "reared from cells in the pith of Lactuca villosa 
(= Mulgedium acuminatum). 
Aulacidea abdita Kinsey, iou. rig.551. This species was described from adults 
cut out of cells in the pith of L actuca e longat e from Quebec. Doubtfully 
distinct from the above. 
Gall on tygodesmia 
Antistrophua pisum Ashm. 164. Fig.549. Pea-shaped galls scattered along stems of 
Lvgodesmia i unoea in autumn in N.Dak., S.Dak., Kan., Nebr.,Wyo.,Mo.,0olo. 
Gall on Prenanthes 
Aulacidea nabali (Brodie). 184. Fig.554. Abrupt, hemispherical swellings just 
below sin*face of ground at base of plant so grouped often as to surround 
the stem. Has consistency of a raw potato in summer, pithy in fall. 
Galls unknown - Host Plant Unknown* 
Ay lax 5-costatus Prov. 179* "Type not located" in Public Museum in Quebec (1917)* 
Diastrophus piceus Prov. 175* Type in Public Museum in Quebec (1917). 
86 
