ECONOMIC ZOOLOGY ENTOMOLOGY. 351 



was thought to be due to the unusually late spring which was followed by a 

 hot, dry spell. Rains came in time to check the injury by Icilling many of the 

 thrips and thus saved the greater part of the crop. A pentatomid (PcriUiis 

 Claud us) was frequently found piercing larv;ie of the potato beetles and sucking 

 them dry. Several farmers reported their work as so effective that it was not 

 necessary to spray. The larvne of the tussock moth was a source of consid- 

 erable injury to apples shortly after the fruit had set. 



The clover hay worm {Pijialis costalis) occasioned considerable loss as stock 

 will not eat hay when badly webbed. It is recommended that the mows be 

 cleaned out and that old hay be destroyed before the moths appear in early 

 June. 



The bean maggot (Pcgomijia fiificiceps) made its first appearance at the 

 college in a field of beans. The rose chafer continued to injure grapes. In 

 experiments made, best results were obtained from the application of arsenate 

 of lead. 



A small beetle {Anomala hinotata) was found in one locality injuring young 

 api)le trees by feeding on the foliage. The strawberry crown girdler (Otio- 

 rhiniclnis ovaiits) was reported for the first time as feeding on peach foliage. 



Fifth annual report of the State entomolog'ist of Montana, R. A. Cooley 

 (Montana Sta. Bui. 11, pp. 136-152. flf/s. 3). — In this report the entomologist 

 discusses the principal entomological features of the year. The army cutworm, 

 which has been the source of great injury to crops in the spring, especially to 

 wheat, has been given pax'ticular attention. This sijecies has been determined 

 as Chorizagrotis auxUiaris, the two forms C. agiestis and C. introferens appa- 

 rently being the same species. The life history and habits have been worked 

 out and are described. The factors in natural control are also discussed. Con- 

 siderable information was gained through a series of questions sent out to 

 those whose fields were infested. 



Other insects noted are the eye-spotted bud-moth iTinetoccra occUana), 

 oyster-shell bark-louse (Lcpidosaphcs uJnii), spotted blister beetle {Epicauta 

 maculata), and the codling moth (Cydia pomonella). 



Report on the injurious insects and other animals observed in the midland 

 counties during 1907, W. E. Collinge {BirmingluDn, 1908, pp. 60, figs. 13, 

 map 1). — The work of the year was largely concerned with a study of the habits, 

 life history, and means of combating various insect pests and the preparation 

 and application of insecticides. On the whole the season of 1907 was charac- 

 terized by less extensive insect injuries to the crojis and animals than that of 

 19015. It was found that the black-currant gall mite may be effectively con- 

 trolled by the application of a mixture of lime and sulphur in either the dry 

 or liquid form. A proprietary substance has been used in fumigating soil 

 infested with various nematode worms and larvte of insects which is said to 

 give better results than carbon bisulphid or any other insecticide thus far tested. 



The greater part of the report is taken up with specific accounts of injurious 

 insects, including thrips, gall mites, bud mites, weevils, cockchafers, leopard 

 moth, frit fly, carrot rust fly, woolly aphis, etc. The woolly aphis has been 

 successfully controlled by application of contact insecticides to the soil about 

 infested trees. 



Papers on coccidae or scale insects. New species of Diaspine scale insects, 

 C. L. Marlatt (IJ. S. Dcpt. Agr.. Bur. Ent. Bui. 16, tech. scr., pt. 2, pp. 11-32, 

 ptH. 9). — Seventeen species of scale insects mostly of economic importance are 

 described as new to science. Ten species belong to the genus Aspidiotus, viz, 

 .1. compeici, A. ineycri, A. cocotiphagus, A. africaiius, A. coursetice, A. trans- 

 caspiensis, A. epigwcc, A. mitchelli, A. popuhirum, and A. chenopvdii, and the 



