442 



afforded for the belief that T. albipes prevented pollination among 

 coconuts. Chrysotnphalus aonidum {Aspidiotus Jlcus) caused injury in 

 young coconut plantations ; a number of parasites were reared from 

 the scales. The following species of boring and grain beetles were 

 recorded during the year : — Xyleborus perforans, WoU., on coconuts ; 

 X. semigranosus, Blandf., a secondary pest of cinnamon, Alhizzia 

 lebbek and Eugenia jambos ; X. abruptus, Samp., a secondary pest of 

 cashew, A. lebbek and E. jambos ; Crossotarsus externedentatus, Fairm., 

 attacking cut branches of Pterocarpus indicus and stems and branches 

 of Ficvs naiifarinn ; Eccoptopterus sexspinosus, Mots., on E. jamboso ; 

 Dinoderus bifoveolatus, Woll., on all species of bamboo except Dendro- 

 calatmis gigantea, and in grain and flour ; Rhizopertha dominica, ¥., 

 and Tribolium castaneum,Tl\)Bt., in lentils ; Calandra oryzae, L., in maize 

 and rice ; Biocalandra frumenti, F., on green coconut leaf-stalks. 



The following scale-insects, in addition to those mentioned above, 

 were recorded during the year : — Gymnaspis grandis, Green, sp. n., on 

 husks of coco-de-mer ; Ischnaspis filiformis, Dougl., on oil palm leaves ; 

 Chrysomphalus (Aspidiotus) dictyospermi, Morg., on Jasniinum, Thun- 

 bergia grandiflora, Pandanus utilis and coconut leaf -bases ; A. lataniae, 

 Sign., on T. grandiflora, coconut leaf -bases, and fruits of bitter and 

 bergamotte oranges ; Chrysomphalus ansei, Green, sp. n., on coconut 

 leaves ; Pseudaonidia (A.) trilobitiformis, Green, on Beaumontia grandi- 

 flora; Parlatoria pergandei, Comst., on T. grandiflora; Pulvinaria 

 antigoni, Green, on Lantana camara and Melia azedarachta : 

 Hemichionaspis aspidistrae on areca nut leaves, Dracaena sp., and 

 Pandanus utilis; Lepidosaphes duponti, Green, sp. n., on coconut leaf- 

 bases ; and Cerataphis lataniae on vanilla leaves. 



Nielsen (J. C). Unders0gelser over entoparasitiske Muscidelarver 

 hos Arthropoder. V. [Researches on Muscid larvae parasitic on 

 Arthropods.] — Videnskb. Meddel.fra Dansk naturh. Foren. Odense, 

 Ixvii, 1916, pp. 9-24, 27 figs. [Received 16th August 1916.] 



Many species of Geometrids occurring on oak, birch and thorn are 

 parasitised in the larval stage by Phorocera caesifrons, Macq. The 

 maggot penetrates into the host, but pupation generally takes place 

 outside its dead body. The pupa hibernates, and there is only one 

 brood annually. The caterpillars of Vanessa io and V. urticae are 

 attacked by Pelatachina tibialis. Fin. Pupation takes place externalh' 

 and the pupae hibernate. The adults of Aelia acuminata, L., are 

 parasitised hy Cistogaster globosa. Fin., Avhich lays its eggs on the dorsal 

 surface of the abdomen beneath the wings. On the death of the host, 

 the parasite pupates in the earth. Gytnnosoma rotundatum, L., and 

 Subdytia roiundiveniris, Fin., infest Chlorochroa juniper irm, L., and 

 Clinocoris (Elasniucha) griseus, L., respectively. 



RoEPKE (W). Het Helopeltis-vraagstuk, in het bijzonder met betrek- 

 king tot Cacao. [The Helopeltis question, especially in connection 

 with Cacao.] — Med. Proefsta. Midden-Java, Batavia, no. 21, 1916, 

 40 + iii pp. [Received 22nd August 1916. ] 



In the dry years of 1913-1915 the damage done by Helopeltis in 

 Java was as great as in 1901-02, which were also years of drought. 

 The external differences between the two species, H. antonii and 



