232 



6f other insects, of which the chief was the beetle, Anobiimi paniceum, 

 L. As at first sight this Anobiid might be mistaken for L. serricorne, 

 some of the distinctions between them are mentioned. A. paniceum 

 appears to be a constant pest of both caraway and coriander. It is 

 parasitised by a small black Hymenopteron, as yet unidentified, and 

 experiments show that this parasite is also able to live in L. serricorne 

 and probahly does so imder natural conditions. Anohium larvae in 

 coriander seed were parasitised twice as much as in caraway. Up 

 to the present no injury to fermented tobacco by A. paniceimi has 

 been observed on the East Coast of Sumatra. It has been recorded 

 in North America as a very unimportant pest in this connection. 



The whole of the investigations recorded point to the necessity for 

 inspecting strictly the estate shops, as they provide conditions favour- 

 able to L. serricorne. Infested Curcuma root may be disinfected 

 with about 10 c.c. of carbon bisulphide used in a kerosene tin. 



Honing (J. A ). The Destruction of Tobacco Plants after Harvesting, 

 a necessary Measure against Phthorimaea opercuMla. — Med. Deli 

 Proefstation, Mednn, x, no. 8, December 1917, p. 208. [Received 

 20th March 1918.] 



A circular is j)ublished advising that all tobacco plants be uprooted 

 and burnt after the harvest, as numerous side-roots are developed 

 and the lowest of these remain alive for months after the main root 

 has perished. In the side-roots of three tobacco plants left standing 

 no less than 20 living larvae of Phthorimaea ojjerculella {Lita solanella) 

 were found, together with 6 empty pupal cases. 



RoEPKE (W.). Verslag over het Jaar 1916-17. [Report on the Year 

 1916-17.] — Meded. Proefstation Midden-Java, Salatiga, no. 28, 

 1917, pp. 10-33. [Received 23rd March 1918.] 



The important question of the food-plants of Acrocercops cramerella 

 (cacao moth) received attention during the year. In 1913, Cynometra 

 cauliflora was found to be an important food-j)lant of this pest in 

 spite of the fact that it is an introduced plant from India, where the 

 moth is unknown. Neither the indigenous Cynometra ramijlora nor 

 a related plant, Maniltoa gemmipara, appear to be attacked by 

 the cacao moth. Up to the present some small moths, related to 

 A. cramerella and probably new to science, have been found on Saraca 

 declinata, Banhinia variegata and other plants of this genus, Caesal- 

 pinia sappan and Jatropha curcas. All these moths are attacked by 

 parasites and these j)lants may prove useful, if grown near cacao, as 

 the parasites of A. cramerella may thus find hosts among them at 

 the time that the operations known as " rampassen " [see this Review, 

 Ser. A, i, p. 57] are being carried out. 



This report also contains abstracts from the departmental report of 

 Mr. P. van der Goot. An investigation, as yet incomplete, was made 

 to determine if Helopeltis actually oviposits and its larvae develop 

 on various plants commonly believed to be food-plants of this pest. 

 In addition to cacao it can be definitely said that H. antonii can 

 develop fully on Anona nmricata (sour sop), Bixa orellana, Ceiba 

 pentandra, Eryngium foetidum, Melastoma malabathricum, Psidium 



