64 Annals Entomological Society of America  [Vol. VII, 
latter larger at distal end, each measuring .07; near the proximal end of 
- joint III on the front side is a short tooth or spine; wings (Figure 6) clear, 
veins slender, stigma rather small. Described from seven types on one 
slide taken at Boulder, Colorado, June 23, 1910, by Mr. L. C. Bragg, 
along with a large number of co-types. 
COLLECTION DATA FOR FUNDATRIGENIA. 
Ft. Collins, Colo., 7-11-12, L. C. Bragg, Populus Sp. 
% § to 8- (12, bb. Ca Brace, 
& s “« 8 6-12, C. P. Gillette, “ a 
: € een fal iia Ore 22 Gillette, . ss 
Wheatland, Wyo., 7-15-13, C. P. Gillette, “ “ 
Boulder, Colo., 6-23-10, L. C. Bragg, c 
Boulder, Colo., 7— 4-11, L. C. Bragg, $ 
Newcastle, Colo., 7-23-93, C. P. Gillette, “ us 
Greeley, Colo., 7-21-09, C. P. Gillette, “ 
Lynn, Mass., 6-27-09, L. C. Bragg, € e 
La Salle, Colo., 7-20-09, C. P. Gillette, “ & 
Eckert, Colo., 6-26-10, C. P. Gillette, “ x 
Windsor, Colo., 7-29-93, C. P. Gillette,  “ « 
Niwot, Colo., 7-15-08, C. P. Gillette,  “ « 
Grand Jct, Colo. /—21-93 Ces Gilletie; == “g 
Veazie, Maine, 7- 5-10, E. M.-. Patch, “ ‘ 
Delta, Colo., 7-20-93, C. P. Gillette,  “ « 
Niwot, Colo., 7-15-08, C. P. Gillette, “ « 
Paonia, Colo., 6-23-10, C. P. Gillette, “ : 
Mr. Maxson has given me the following statement in 
regard to the early appearance of the stem mother gall: 
‘“The earliest date on which the galls were found was May 
20th. On this date the lice were very small and appeared to be 
in the first stage after the egg, since no shed skins were to be 
found in the galls.”’ 
Alate Sexupara. 
This form differs from the fundatrigenia by having joint II of the 
antenna (Figure 8) decidedly longer in proportion to its diameter; 
joint VI without transverse sensoria; joint V often without sensoria 
except the permanent one, but sometimes with one, two, or even three 
sensoria present; joint IV with but four or five sensoria, and joint V as 
long as joint VI with the spur. 
This form has been taken at Fort Collins on several different 
dates during September on Ranunculus by Mr. Bragg, and 
about Longmont, Colorado, by Mr. Asa C. Maxson.* 
*T am indebted to Mr. Maxson for the privilege of using the data that he has 
accumulated during the past two years from his studies of this insect. Mr. Maxson 
has also independently traced this insect to the Ranunculus from the cottonwood 
leaves. 
