128 
PRELIMINARY LIST 
Z,ecanium perforatum Newstead. l)et. Cockerell. 
Denver, November 24th on Raphis in green house 
(Gillette). 
J^ecanium sp. 
Manitou, September 27th on rose (Gillette). Regarding 
this species Mr. Cockerell (in litt.) says: “It seems not to 
be rosarum, or the Santa Fe species, for its antennae are 
seven-jointed. In the Santa Fe species the antennae have 
eight joints. The antennal formula in your Manitou insect 
is 8 (24) (17) (56).” 
I^ecanium sp. 
Manitou, September 27th on oak (Gillette). Regarding 
this species Mr. Cockerell says: “The antennae are eight- 
jointed and the antennal formula is 8 (24) (18) (567).” 
Aspidiotus ancylus Put. Pet. through Riley. 
Canon City, April 80th abundant on pear (G. M. DuBois). 
Aspidiotus camelliae Boisd. Pet. Cockerell. 
College greenhouse, September 10th on Japanese Quince, 
Aralia, and Ficus elastica (Baker). 
Aspidiotus dictyospermi Morgan. Pet. Cockerell. 
College greenhouse, September 10th on Champaeropsis 
elegans (Baker). 
Aspidiotus Hens Ashm. Pet. Cockerell. 
Denver, November 24th on Phormium tenax in green¬ 
house (Gillette). 
Aspidiotus howardii Cockerell. Pet. Cockerell. 
Canon City, August 31st on fruit of plum (Gillette). 
Aspidiotus nerii Bouche. P e t- Cockerell. 
On lemons exposed for sale in the shops (Cockerell, 10). 
College greenhouse, September 10th on oleander and 
Dracaena (Baker). Fort Collins, December 28th on Califor¬ 
nia lemons and oranges in the market (Gillette). 
Aspidiotus perniciosus Comst. P e t* Cockerell. 
Fort Collins, December 30th on California pears in the 
