83 



FuLLAWAY (D. T.). Horn Fly Contiol.— Hawaiian Forester S- 

 AgnciiUtmst, Honolulu, xviii, no. 10, October 1921, pp. 219-221 

 1 plate. [Received 2nd February 1922.] 



The control of the horn fly [Lyperosia irritans] is the outstandine 

 entomological problem in Hawaii. In January 1921 a consignment 

 of Omtis phaytopHs, Catharsius molossus and Onihophagus sp was 

 received from the Philippine Isles, but was not reared successfullv 

 Dunng the summer four consignments of other dung beetles chiefly 

 Unthop/mgHS piignax, were received from Austraha. These con- 

 sisted entirely of adults, and they failed to establish themselves 

 Investigations into the habits of these beetles in AustraHa show the 

 advantage m collecting and shipping them in the larval stage as 

 abundance of material can be gathered at any season, and they 'can 

 be shipped wthout loss or injury in this immature condition It 

 \vas further thought that the beetles emerging from the pupal cells 

 would be ready to work immediately on manure. The difficulty 

 arose when they reached Hawaii, owing to the slow progress of the 

 larvae m maturing. The cells containing the larvae could not be 

 placed in the ground in situations similar to those from which they 

 had been removed, as the foreign soil might contain harmful insects 

 and it was known that a small beetle, which in Australia retards the 

 development of these dung beetles, was present in the soil. The 

 cells therefore had to be kept in quarantine. The adults emerged 

 in September, and continued to do so till the end of October 300 in 

 all being liberated. Several species of Staphylinid, Silphid and Histerid 

 beetles, which are predacious on the immature stages of L. irritans 

 were also introduced from AustraHa, and were hberated under conditions 

 favourable to their acclimatisation and estabhshment. 



Endeavours have been made to obtain other enemies from less 

 remote countries, and in October and November the following were 

 received from the south-west United States : Copris colonicus C 

 remotus a small Canthon, a metalhc Phanaeus, Staph^dinid 'and 

 Histend beetles, and the parasites Spalangia sp. and Eucoli'a sp. 



BisHOPp (F. C). The Fowl Tick and how Premises may be freed 

 .^r^ it.— 17.5. Dept. Agrtc, Washington, D.C., Farmers' BuU. 

 1070, rev. edn., October 1921, 16 pp., 9 figs. [Received 6th 

 February 1922.] 



The information contained in this bulletin on Argas Persicus has 

 already been noticed [R.A.E., B, viii, 70]. 



Crumb (S. EJ & Lyon (S. C). U.S. Bur. Ent. Further Observations 

 on the Effect of Chemicals upon Oviposition in the House Fly. 



— //. Econ. Ent., Geneva, N. Y., xiv, no. 6, December 1921 

 pp. 461-465. 



The present observations, carried out in 1918 and 1919 were con- 

 ducted on similar lines to those of 1916 [R.A.E. A iv' 67] The 

 substances tested, however, are less volatile than' those' previously 

 used and were applied in solution direct to the medium, which was 

 bran husks washed and sterilised immediately before use. In addition 

 to carbon dioxide and ammonia thirteen different substances were 

 tested. The various solutions, with the exception of sodium carbonate 

 sodium sulphate and calcium hydroxide, were approximately of equal 



