750 EXPERIMENT STATION RECOED. 



Tests made of several proprietary insecticides in destroying the rosy apple 

 aphis and the San Jose scale are reported by B. H. Walden, who also presents 

 a paper on a phorid (Aphiochceta rufipes) infesting onion seed. The small mag- 

 gots of this fly were taken from onion seeds which had been placed in a ger- 

 minator to test their vitality. The maggots were first observed in 3 or 4 days, 

 or soon after the seeds began to sprout. " They soon ate out the interior of the 

 seeds and were present in such numbers that it was impossible to obtain any 

 data regarding the vitality of the seeds. Spinach and grass seeds which were 

 in the germinator were not attacked, so the first supposition was that the onion 

 seeds were infested when put in to test." A number of the larvte pupated in 

 about 10 days from the time the seeds were first placed in the germinator, the 

 first adult emerging on November 21, 24 days after the pupae were first ob- 

 served. Technical descriptions are given of the stages. 



A pyralid caterpillar taken April 12 on nursery stock imported from Japan 

 has been identified as Hemiscopis cmerea. Brief descriptions of the larva, 

 pupa, and adult are included. 



Notes are presented on injury to cartridge shells by ants. Cardboard shells 

 and in some cases the wads of a box of paper shotgun cartridges returned to 

 the manufacturers from Texas had been eaten so that the powder and shot fell 

 out and mixed together. The injuries indicated that the insects used the box 

 of shells as a nesting place rather than a source of food. The author is of the 

 opinion that this injury may have been caused by the Argentine ant (Irido- 

 myrmex humilis ) . 



Other insects briefly considered are the pear-leaf blister mite; Bucculatrix 

 canadcnsisclla, which infested birch trees as previously noted (E. S. R., 24, p. 

 455) ; the 15-spotted lady beetle iAnaiis 15-punctata) observed feeding on Cal- 

 lipterus betulwcolens ; the cabbage looper; the cottouwood leaf beetle {Lina 

 scripta) ; the red cedar bark beetle {Phlceosinus dentatus), which attacked 

 Arbor vitse; the maple leaf stem borer {Prlophorus acericauUs) ; the rhodo- 

 dendron lace bug {Leptobyrsa cxplanata), which in some cases caused I'ather 

 serious injury to rhododendrons; the grape fruit worm; June beetles {Lach- 

 nostcrna sp. ) , which defoliated poplars ; the clover seed chalcid fly ; caterpil- 

 lars on fir (Ahies tomomi) from Japan; the currant spanworm {Cymatophiora 

 ribearia) ; the cluster fly (PoUenia rudis) ; the Mocha stone moth (Melalopha 

 inclusa), which was abundant on poplar and willow; the fern scale on green- 

 house ferns; caterpillars feeding on Japanese barberry (Bcrbcris thunbergi) ; 

 the drone fly (Eristalis tcnax) ; thysanurids {Isotoma [Folsomial flnietaria) 

 in ginseng seeds; and spring tails {Isotoma sp.) in tobacco beds. 



Four insect pests (Maine ^ta. Doc. .'/Ol. pp. 2), figs. 10). — Articles are 

 presented on The Typhoid Fly and Its Allies and Flea Beetles and Early Blight 

 of Potatoes, by O. A. Johannsen, and on Plant Lice of the Apple in Maine, and 

 Cutworms in Maine, by Edith M. Patch. 



Insect pests in the West Indies in 1910 {Agr. Nctos [Barbados], 9 {1910), 

 No. 226, p. JfiO). — A brief account based on information furnished by the agri- 

 cultural oflicers in the several islands of the Lesser Antilles. 



Insect pests in South Africa, C. W. Mally {Reprint from Agr. So. Africa, 

 1910, Sept. 23, pp. 12, figs. 6). — A summarized account of several of the more 

 important insects, including the fruit fly, cutworms, and stalk borer {Scsamia 

 fusca), with remedial measures applicable. 



Injurious insects of Formosa, T. Shiraki (Agr. Expt. Sta. Formosa, [1910], 

 vol. 1, pp. 31. 'i, pis. 51). — This work by the entomologist of the Formosa govern- 

 ment agricultural experiment station gives in Latin the scientific names of the 

 Insects that are illustrated in colors and described in Japanese, 



