400 THE MONTHLY BULLETIN, 



INSECT NOTES. 



A heavy infestation of the Elm-leaf Cluster Louse was found in Yolo County on 

 July 15th. The winged form was common. Large numbers of egg-clusters of Chrysopa 

 calif ornica were present, the larvfe, upon liatching, burrowing into the leaf clusters 

 for feeding upon the lice. — E. J. Branigan. 



The Western Cucumber Beetle, Diahrotica soror Lee. is unusually abundant during 

 the present season. — H. S. Smith. 



The Cerambycid, Inochus fasciatus Lee, has recently been received from Ventura 

 County. — E. J. Vosler. 



The Brown Elm Scale, Lecanium canadense (Ckll.) occurs in great abundance on 

 elm trees in Yolo County at this time. — E. J. Branigan. 



A good colony of Chilocoriis Mpunctatus recently imported from Italy has been 

 released at Fair Oalcs on Coccus citricola and Saissetia olea: — H. S. Smith. 



The pear leaf rust-mite (Epitriinerus pyri) occurs quite commonly on pear trees 

 throughout the Sacramento Valley and in parts of Lake County at the present time. 

 Complaint of quite serious damage comes to us from Mr. Fred G. Stokes, County 

 Horticultural Commissioner of Lalce County, and it is probable that control measures 

 will become necessary. — Geo. P. Weldon. 



The Onion Thrips, Thrips tahaci Linn., occurs abundantly on beans in various parts 

 of the valley at the present time. — H. S. Smith. 



The grasshopper, Camnnla pellucidu, has been troublesome in Ventura County. 

 This pest has been poisoned with a bran mash, prepared according to a formula used 

 by the Kansas Agricultural Station, which lias done very effective work. — A. A. Brock. 



Heliothrips fasciatus Perg. is reported by Mr. Searles, Farm Adviser of Yolo County, 

 on almonds in the Capay Valley. — H. S. Smith. 



An undetermined species of mealy bug is doing considerable damage to Bartlett 

 pears in a few orchards in the Sacramento River Valley. This pest enters the calyx 

 of the small pear and tliere feeds during tlie season. Tlie injury causes the pear to 

 bleed from the calyx and in some ca-ses tlie damage is quite serious. — Geo. P. Weldon. 



One hundred and fifty pounds of Ilippodamia convergens were collected in the 

 Feather River Canyon on July 1st. — E. J. Branigan. 



Several colonies of Leptomastix, the new Sicilian mealy-bug parasite, have been 

 sent south this month for liberation in the orchards where mealy-bugs are abundant. — 

 H. S. Smith. 



Mr. W. M. Phillipson, Horticultural Inspector at Monrovia, has sent in specimens of 

 Trichobaris trinotata Say, taken on Datura mcteloides. So far as I am aware this is 

 the first record of the potato stalk weevil in California, outside of the Imperial 

 Valley. — Harry S. Smith. 



The mite RMsoglyplius rhizophagus Banks is reported as injuring onions in Los 

 Angeles County. — Harry S. Smith. 



