275 



Additional food-plants include snowberiies and Pninus padiis. The 

 charaeteristic results of feeding were also seen on Cornus sangxinea, 

 C. alba, Ribes aureum, Pnvnus serotina, Rosa canina and Spiraea sp., 

 though no examples were taken on these plants. One female was 

 noticed to lay about 48 eggs from the beginning of August to the 18th 

 August ; these hatched under laboratory conditions in about 17 days. 

 During the present observations the first damage was noticed early in 

 June, but this apparently depends on climatic conditions. 



Schumacher (F.). Lei'copis nigricorms Egg. (Dipt.) als Parasit 

 bei Ptdvinaria betulae, L. {Coccid.)—Z eifschr. f. angeiv. Etitom., 

 Berlin, v, no. 2, 1919, p. 314. [Received .19th April 1920.] 



The Agromyzid fly, Leucopis nigricornis,Y.gg., is recorded as a parasite 

 of Fidvinaria hetulae, L., infesting Prunus cerasifems near Berlin. 

 About 90 per cent, of the scales were thus ii^fested. 



Andres (— ). Etwas tiber die Kupferrote Dorrobstmotte, Plodia 



interpunctelh, Hb. [Notes on the Dried Fruit Moth, Plodia 



inter puncfella, Hb. j Zeitschr. f. angeiv. Entom., Berlin, v, no. 2, 



1919, pp. 316-317. [Received 19th April 1920.] 



Plodia interpuncteUa, Hb., is recorded as infesting various stored 

 products. There are apparently two generations a year. The moths 

 of the first generation are on the wing until September, and hibernation 

 occurs in the larval stage of the second generation. Fumigation with 

 hydroc3^anic acid as for Ephesiia kuhnieUa, Z., is recommended. 



Friederichs (K.). Studien tiber Nashornkafer als Schadlinge der 

 Kokospalme. [Studies on Rhinoceros Beetles as Pests of the 

 Coconut Palm.] — MonograjjJiien zur angew. Entomologie, no. 4, 

 Supplement no. 1 to Zeitschr. f. angeiv. Entomologie, Berlin, vi, 

 1919. 116 pp., 53 figs., 20 plates, 1 map. [Received 19th April 

 1920.] 



Owing to the extensive damage caused by rhinoceros beetles in the 

 coconut plantations of Samoa during 1912-13 an extensive journey 

 was undertaken by the author to ascertain why these beetles are 

 apparently more dangerous to coconut cultivation in these islands 

 than in other palm-growing countries. Observations were also to be 

 made with a view to the possibility of introducing natural enemies to 

 Samoa, but this part of the project had to be abandoned owing to the 

 outbreak of war. The places visited included : the Phihppine 

 Islands, Cochin China, Cambodia, Siam, Singapore, the Malay States, 

 Ceylon and Madagascar. 



The morphology and ecology of various species are described, includ- 

 ing Oryctes rhinoceros, 0. monoceros, 0. boas, and 0. radanui. The 

 prevalence of these beetles and the respective damage caused by 

 them in the various places visited is discussed at length. In Indo- 

 China Xylotriqjes gideon, L., and X. lorqnini, Deyr., were also abundant. 



f684) b2 



