ECONOMIC ZOOLOGY ENTOMOLOGY. . 95H 



A key is presented for tlie i<leiititieatioii of fainilies. jjeiirra, ami species of 

 this frrou]) foiiiitl in California, ami (lescrii)tions are }iiven of all siiecies recog- 

 nized in the Stale. 



Papers on the cotton boll weevil and related and associated insects. 

 The cotton stalk-borer, A. C. Mokgan (/ . /S'. Dept. Agr., Bur. Hut. Bui. 63, pt. 

 7, pp. 63-ijii. 111. I). — Notes are given on the distribution, food jilants, life his- 

 tory, natural enemies, and means of eontrolling Ataxia critiilu. This insect 

 feeds upon sunllower, cocklebur, tigs, and various other plants, as well as 

 cotton, but seldom causes serious injury. In one instance about 20 per cent of 

 the stalks in a tield of cotton was attacked. The remedy suggested is that of 

 destroying the infested stalks early in the fall. 



Papers on the cotton boll weevil and related and associated insects. 

 Notes on the pepper weevil, V. C. rKAiT (/. .s'. J>cpt. Aiu:. Bur. Eiit. Jiiil. 

 li.j. pi. ,'). pp. .'i'i~'iS. pi. I, /i<i. I). — Aiillioiioiinis (nicolincliis caused gi'eat injury 

 to nearly all varietit's of j)ej)pers in the region of San Antonio, Texas, but later 

 the pest ijractically disappeared iu some of the worst infested districts. This 

 insect was ai)i)anMitly introduced from Mexico within recent years. The infested 

 pepper pods sliow a slight proliferation of tissue, which assists in checking the 

 work of the larva, but in cases of bad infestation it is necessary to collect and 

 destroy fallen pei)per pods or bury them by cultivation. 



Enemies of rice {Bill. Hcon. ludo-Chine, n. iser., 9 (19116), No. 59, pp. 116Jf- 

 1113, tills. .HI). — Special attention is given to two moths {Vitaphulocrovin iiicfli- 

 iialin and Diatrua .sacchuri). These pests cause serious damage to rice through- 

 out Indo-Chiua and can not be readily controlled by the methods which have thus 

 far been devised. It is impossible to use irrigation as a means of control late 

 enough to be effective against the insects without injuring the rice. The use of 

 lantern traps has not produced veiy satisfactory results. The author therefore 

 recommends the collection and destruction of all infested stools of rice at the 

 lime when the caterpillars are located at the base of the stems. 



Experiments with Calandra oryzae, B. Wahl {ZtscJir. Landir. Vcrsiichir. 

 o.'ihrr., 10 {191)1), Ao. .i, pp. 51-10). — A series of experiments was carried out 

 t(j determine the food reipiirements of the rice weevil. It ai)pears that this 

 Iiest will feed upon corn, wheat, rye, barley, and rice, as well as a number of 

 milling pmducts. bread made from them, and macaroni. It does not breed, 

 however, exceitt in the 5 varieties of grains mentioned. In preventing its 

 spread, it is desirable to keep close watch for infested grain and to apply suit- 

 able treatment at once. 



Insect pests and diseases of sugar beets in 1906, (). Fallada {Separate 

 from Ostcrr. I'liiiur. Zlschf. 7.uckcrin(lu.s. u. Laudir., 1901, No. 1, pj). 8).- — During 

 the year under i-ejiort tlie cliief insect pests of sugar beets were wireworms, 

 cockchafers, species of Cleonus and Haltica. cutworms, and i)lant lice. Brief 

 notes are given on the habits of these pests. Short accounts are also presented 

 of nematode worms. I);icteriosis, scab, root rot, leaf yellows, leaf spot, and other 

 fungus diseases. 



Lita ocelletella and its injury to sugar beets in 1906, I'. Marchal {Siicr. 

 Indiy. ct Colon., 69 {1901), No. 10, pp. 259-^63). — This insect in the larval form 

 tunnels in the petioles of the leaves and in the outer portion of the sugar beets, 

 particularly at the crown. In this way a great amount of damage is done. In 

 preventing the ravages of tliis jiest. it is recommended that crowns with leaves 

 should I)e removed from the infected beets and used for feeding or ensiling in 

 order to destroy the inscvts. In badly infested regions, it may also be necessary 

 to Jidopt a system of crop rotation. 



