756 EXPEEIMENT STATION RECORD. 



linhits, and injury are briefly set forth. Notes are included upon 2 parasites, 

 Eunjtoina dcntata and f'scudocdtoluccus aspliondijlia', which have been found 

 to attaclv it. 



Illustrations of African blood-sucking flies, other than mosquitoes and 

 tsetse flies, K. E. Austen (London: Brit. Mus. Nat. Hist., 1909, pp. XV-\-221, 

 pis. 13, figs. 3; rev. in Nature [London], 82 {1909), No. 209(1, pp. 2',1, 21,2; 

 Jour. Roy. Army Med. Corps, 13 {1909), No. 5, pp. G07, 608). — Chapters are de- 

 voted to the ChironouiidfP ; the Psyschodidje, including an account of the 

 Phlebotomus papatasii which ti-ansmits the three-day fever of Dalmatia ; the 

 Simulidfe; TabanidiB with the four principal genera — Tabanus, HiTjmatopota, 

 Paugonia, and Chrysops; the Muscidai; the Hippoboscidaj ; and geographical 

 lists, respectively. 



A catalogue of the Coleoptera (Coleopterorum Catalogus. Berlin, 1910, pts. 

 1, pp. 11; 2, PI). 32; 3, pp. 80; //, pp. ISJ/). — Part 1 of this catalogue, which takes 

 up the Rhysodid;e, was prepared by II. Gestro; part 2, taking up the Nilionidse, 

 Othniida?, .l]gialitid;e, Petrildie and LagriidiTp, and part 3, the Alledulidie, are 

 by F. Borchniann; and part 4, containing the Ipid;e, is by M. Hagedorn. 



The hibernation of the boll weevil in central Louisiana, W. Newell and 

 M. S. DouGHERTi' (Crop Pest Com. La. Circ. 31, pp. 163-219, pi. 1, figs. 5). — ^An 

 investigation of the hibernation of the boll weevil extending from September 

 15, 1908, to July 15, 1909, and conducted at Mansura, Avoyelles Parish, La., is 

 here reported in detail. The results and conclusions have been summarized by 

 the authors as follows: 



" Out of 1G,2S1 adult boll weevils confined in the 16 cages, 3,.3G0, or 20.63 per 

 cent lived through the winter successfully. Destruction of all cotton plants 

 before October 15 resulted in only 3 per cent of the weevils surviving the 

 winter. Letting the cotton plants stand in the field until about Christmas re- 

 sulted in over 40 per cent of the weevils living through the winter to attack the 

 next crop. It was found that starvation of the boll weevils before they entered 

 hibernation in fall was more effective in causing their death than was cold or 

 wet weather during the winter. The average time that the weevils remained in 

 hibernation was 159 days. The extreme length of time that any weevil lived 

 without food, while in hibernation, was 255 days, or Si months. When the cotton 

 plants are allowed to stand in the fields until killed by cold, the average weevil 

 has to go without food for only about 94 days. When cotton plants are de- 

 stroyed before October 12 the average weevil must go over 6 months without food 

 or starve to death. Early destruction of the cotton plants results in starvation 

 of hordes of boll weevils. Moss on the forest trees was found to shelter an enor- 

 mous number of boll weevils during the winter. Of the weevils that spent the 

 winter in Spanish moss, 38 per cent lived througli the winter. Of those hibernat- 

 ing in average materials only 20 per cent lived through. Boll weevils passing 

 the winter in moss emerged from hibernation much later than those hibernating 

 in other materials. Moss-covered trees near the cotton field increase weevil 

 infestation. The length of time that the weevils live after leaving hibernation 

 in spring has an important bearing on the problems of poisoning the weevil and 

 of when to plant the crop to best advantage. The average overwintering boll 

 weevil lived 10.7 days after leaving winter quarters. The maximum length of 

 life, after leaving hibernation, was 44 days." 



The authors consider these results to be indicative of the weevil's hibernat- 

 ing habits in most of the alluvial territory in the Mississippi, Pved River, Black 

 River, and Ouachita valleys of Louisiana, as Mansura has practically the same 

 prevailing temperatures, elevation, and rainfall. 



Experiments with powdered arsenate of lead as a practical boll weevil 

 poison, W. Newell and G. D. Smith ( Crop Pest Com. La. Circ. 33, pp. 252-333, 



