October, '10] COCKERELL ON COCCID^ 427 



July 25, 1910 (E. Bethel). Smaller than P. coloradensis, the trans- 

 verse diameter 5 mm. or less, color light fulvous brown. Coleman's 

 description of his Calif ornian insect on Ahies concolor is too short, but 

 doubtless our species is the same. P. coloradensis is probably confined 

 to Picea. 



*Eucalymnatus tessellatus Sign. On a hothouse palm, Boulder. 



Pulvinaria higelovice Ckll. On Chrysothamnus, Boulder, June, 1910 

 (E. Bethel). 



Eriopeltis coloradensis Ckll. Boulder is the type locality. 



DlASPIN^. 



*Diaspis boisduvalii Signoret. Boulder, on ferns in greenhouse. 



Chionaspis pinifolice Fitch. Boulder canon, 7340 ft. on Pinus scop- 

 ulorum. Also on Flagstaff Hill and at Salina. 



Chionaspis bruneri Ckll. Boulder, on Populus. Preyed upon by 

 Chilocorus bivulnerus. I use the name bruneri instead of salicis-nigrm 

 (Walsh), because Walsh's species was never recognizably described, 

 and the application of his name to the present insect is mere guesswork. 



* Hemichionaspis aspidistroe Signoret. Boulder, on ferns in green- 

 house. 



Targionia graminella Ckll. On Bouteloua oligostachya. Found by 

 Mr, E. Bethel at Boulder, and also at Leyden and Trinidad, Colorado. 

 This species was discovered in New Mexico, and was considered 

 extremely rare, but Mr. Bethel has found it abundant and destructive. 



*Chrysomphalus aonidum L. Boulder, on Ficus and palms in green- 

 house. 



*Aspidiotus hederce Vallot. Boulder, on trailing Asparagus indoors 

 (Miss Ohve Jones). 



Aspidiotus ancylus Putnam. Boulder, on apple (D. B. Thurston). 



A . juglans-regiae Comst., var. A few scales on the bark of a branch 

 of wild plum, brought in for the Phenacoccus; Boulder, June, 1910 

 (Bragg). The material is scanty, and perhaps not quite typical. 

 • *^. perniciosus Comst. On Japanese quince shipped in, but not 

 planted out, Nov. 1908 (T. B. Holman). 



Explanation of Plate 29 



Fig. 1. Trionymus nanus Ckll. on roots of grass under a stone. Boulder, Col., 

 November, 1904. 



Fig. 2. Ceroputo lasiorum Ckll. in nest of Lasius interjectus. Las Vegas, New 

 Mexico, April, 1901. 



Fig. 3. Orthezia oUvacea Ckll. in nest of Lasivs sp. Boulder, Col. 



Fig. 4. Orthezia lasiorum Ckll. in the nest of Lasius americanus. Las Vegas, " 

 New Mexico, April 25, 1910. 



Photographs from type slides kindly made for me at the Bureau of Entomology. 



