89 



GooT (0. van der). Over eenige engerlingensoorten, die in riettuinen 

 voorliomen. [On certain beetle larvae, found in sugar planta- 

 tions.] — Med. Proef station voor de Java Suiker Industrie, pt. 5, 

 no. 10. (Reprint from Archief voor de Suikerindustrie in Med.- 

 Indie, pp. 275-316), Soerabaia, 1915, 60 pp., 13 figs. 



In February and May of 1914, when Muir from Hawaii was in Java 

 searching for parasites of Adoretus compressus, instructions were given 

 to the plantation coolies to collect all the grubs they could find in order 

 to assist him. The material so collected is dealt with in this paper, 

 which contains descriptions of 16 species with the localities in which 

 they are found and notes on their bionomics and parasites. Adoretus 

 compressus, Web., is attacked both in the larval and adult stages, by 

 Metarrhizium anisopliae and by Bacillus gigas, sp. n., which destroyed 

 numbers of the larvae in the insectary. A Tachinid parasite, Prosena 

 siberita, which is common in Java, also attacks the larvae ; the fly is 

 thought to lay its eggs on the ground and the larvae on hatching seek 

 their host in the soil ; this parasite is thought to have some importance- 

 Other minor enemies are two Asilids, Emphysmnera conopsoides,.Wied.y 

 and Philodicus javanus, Wied. A species of Tiphia and the Ortalid 

 fly, Campylocera robusta, van der Wulp, have been found to be parasitic 

 on the beetles, but the proportion attacked by the latter insect is very 

 variable, though sometimes amounting to 50 per cent. The damage 

 done varies and the numbers of the beetles seem to have some relation 

 to the use of animal manure. Anomala antique, Gyll., lives in vegetable 

 rubbish and is only occasionally harmful. A. obsoleta, Bl., also lives 

 in vegetable rubbish and is of little importance as a pest of sugar-cane. 

 A. pallida, F., was found only in very small numbers. The larvae of 

 Aphodius marginellus, F., are only found in manure and vegetable 

 rubbish and do not attack living plants. Holotrichia constrictor, 

 Burm., is not common and probably of no consequence as a pest of 

 sugar-cane. H. helleri, Brsk., was the commonest larva found in the 

 sugar plantations in 1914 ; the larvae have probably been confused 

 previously with those of Apogonia destructor. Much harm was done 

 by it to the roots of various cultivated grasses. H. leucophthalma, 

 Wied., is probably of small account as a sugar-cane pest. The bionomics 

 of Lepidiota stigma, F., and Leucopholis rorida, F., are also dealt 

 with [see this Review, Ser. A, iv, p. 82]. Oryctes rhinoceros, L., in cane 

 plantations is always found among rotting leaves, etc., and apparently 

 lives its whole life on decaying vegetable matter being therefore 

 harmless to sugar-cane. Protaetiafusca, Herbst, also lives on vegetable 

 refuse, and so far as is known, living plants are not attacked, nor can 

 Xylotrupes gideon, L., be regarded as a pest of sugar-cane. A table 

 is given at the end of the paper showing the characters of the larvae of 

 each of the 16 species. 



PoETEREN (N.van). De "Roode Worm " der Framhozen, Lampronia 

 rubiella, Bjerl(. [The Red Raspberry Worm, Lampronia rubiella, 

 Bjerk.] — Tijdschr. Plantenziekten, Wageningen, xxi, pts. 5-6, 1915, 

 pp. 131-152, 2 plates. [Received 2l3t December 1915.] 



This paper describes the life-history of, and the nature of the 

 damage done by, Incurvaria {Lampronia) rubiella, Bjerk., in Holland, 

 (C243) Wt.P12/91. 1500. 3.16. B.&F.Ltd. Cll^S i. 



