432 



280,000 individuals having been liberated. In several instances the 

 Bethylid now recorded as Sderodermus domesticus, Kieff. [R.A.E., 

 A, ix, 95], placed on the trunks of infested trees has successfully 

 destroyed the borers. 



MoRSTATT (H.). Die Schadlinge und Krankheiten der Kokospalme. 



[The Pests and Diseases of the Coconut Palm.] — Arb. Biol. 

 Reichsanst. Land- u. Forsticirtsch., Berlin, x, no. 3, 1920, pp. 195- 

 242, 15 hgs. [Received 8th July 1921.] 



This list of enemies of coconut palms includes mammals, birds, 

 insects and diseases. A brief description of the life-history and 

 control of the more important insects is given, with the localities in 

 which they occur and references to previous literature for further 

 details. 



MoRSTATT (H.). Die Schadlinge und Krankheiten der Sorghumhirse 

 (Mtama) in Ostafrika. [The Pests and Diseases of Sorghum in 

 East Africa.] — Arb. Biol. Reichsanst. Land- u Forstwirtsch., 

 Berlin, x, no. 3, 1920, pp. 243-268. [Received 8th July 1921.] 



This paper collates information from various sources with regard to 

 the pests of Sorghum in East Africa. The insect enemies of this 

 crop here dealt with are : Schistocerca peregrina, Oliv. ; Zonocenis 

 clegans, Thunb. ; Conocephalus nitidulus. Scop. ; Brachytrypes 

 membranaceus, Drury ; Gryllotalpa africana, P.B., and Gryllus spp. ; 

 Epilachna similis, Thunb. ; Haltica sp. ; Systates irregularis, Est. ; 

 the Noctuids Sesamia nonagrioides, Lei., and Biisseola sorghicida, 

 Thurau ; the Pyralid, Diatraea orichalcociliella. Strand ; Lygaeus 

 militaris, F. ; Liburnia testacea, Carlini ; Dicranotropis sorghi ; Jassids ; 

 Aphis sacchari, Zehnt., and A. adusta, Zehnt. 



The pests of stored Sorghum are : Calandra oryzae, L., Tribolium 

 ferrugineum, E., and Sitotroga cerealella, Oliv. Clean storage, fumiga- 

 tion and treatment by heat are advocated to prevent infestation. 

 Seed intended for planting may be stored with 1 per cent, of naphtha- 

 line, but if treated in this manner it is not fit for food. 



MoRSTATT (H.). Die wilden Seidenraupen in Ostafrika. [The wild 

 Silk worms in East Africa.] — Arb. Biol. Reichsanst. Land- ii. 

 Forstwirtsch., Berlin, x, no. 3, 1920, pp. 269-282. [Received 

 8th July 1921.] 



A good deal of this infoimation, especially with reference to Anaphe 

 infracta, is quoted from previous authors, including Gowdey's papers : 

 " Experiments on the Domestication of A. infracta, Wlsm.," in 

 Ann. Rept. Dept. Agric. Uganda, 31st March 1911, and "On the 

 Utilization of an Indigenous African Silkworm {A. infracta) in 

 Uganda," in Bull. Ent. Res., iii, 1912; also Dr. Schultze's paper on 

 the silkworms of Africa, especially the social spinners, published 

 by the African Silk Corporation [cf. also R.A.E., A, ii, 530]. Some 

 of the information has already been noticed [R.A.E., A, ii, 547]. The 

 present paper is chiefly concerned with the occurrence of the moths 

 in Bukoba, East Africa, where Anaphe infracta has only been noticed 

 by the author on Bridelia sp. The flight period of the main generation 

 occurs from December to January, feeding takes place from February 

 to June, and spinning from July to the end of October. The various 

 periods of a minor parallel generation occur about six months ahead 

 of the main one. 



