223 



Plithorimaea operculelh (potato moth) the storing demonstrations 

 were discontinued, as the effectiveness of the recommended method of 

 storing had been satisfactorily demonstrated for several years succes- 

 sively. 



In Bengal, the " bhepu " disease of rice was found to be due to the 

 attack of a Cecidomyid fly, probably Cecidomyia oryzae, Wood-Mason. 

 Experiments to check the mango weevil, Crypiorrhynchus mangiferae, 

 by kerosene treatment have given apparently promising results. 



In Burma, tests with seeds of Cajanus indicus, after treatment with 

 carbon bisulphide, showed that their germination was not affected. 



This paper concludes with a list of 64 works, issued during the year 

 ended 30th June 1915, which deal with Indian insects. 



Beeson (C. F. C). Forest Entomology.— Reprint from Ann. Rept. 

 Bd. Scientific Advice for India, 1914-15, Calcutta [1916]. 

 Economic Zoology, pp. 1-5. [Received 11th April 1916.] 



During December and January 1914-15, investigations were carried 

 out in the Buxa and Jalpaiguri Divisions of Bengal in connection with 

 the dying off of sal trees (Shorea robusta). Insects were found to be 

 absent from 36 per cent, of the trees examined, at the time of their 

 death. The remainder contained the following insects, before or 

 shortly after death : — Hoplocerambyx spinicornis, Newm., 30 per cent. ; 

 Diajms furtivus. Samps., 16 per cent. ; Xyleborus major, Steb., 5 per 

 cent. ; Sphaerotrypes siwalikensis, Steb., X.fallax, Eichh., X. andrewesi, 

 Bldfd., Platypus curt us, Chap., and D. 6-spinatus, Chap., 13 per cent. 

 The following species occurred commonly, but in nearly all instances 

 as late arrivals : — Xyleborus laticollis, Bldfd., X. parvulus, Eichh., 

 X. perforans, Woll., X. scJilichii, Steb., X. semigranosus, Bldfd., 

 X. submarginatus, Bldfd., X. spp. n., Eccoptopterus %-spino^us, Motsch., 

 Crossotarsus saundersi. Chap., C. bonvouloiri, Chap., Platypus cupulaius, 

 Chap., P. solidus. Walk., Dialeges pauper, Pasc, Chlorophorus sp. n., 

 Xylotrechus buqueti, Lap. and Gory. 



H. spinicornis is to be regarded as a primary pest, the remainder of 

 the species mentioned above being secondary ones and only attacking 

 trees which have been rendered unhealthy by a root fungus. The 

 life-histories of H. spinicornis and of some of the Scolytids were 

 studied. 



In connection with insects injuring teak, a report on the distribution 

 and seasonal history of the Cossid moth, Duo?nitus ceramicus, Wlk., 

 was circulated in Burma. A study of the Hepialid borer of young 

 trees was begun. The Longicorn, Haplohammus cervinus, Hope, was 

 found to cause fissures and cankerous swellings on the stems of poles 

 and saplings in Upper Burma, Northern Shan States, and Assam. 

 Three Longicorns were bred from Burmese teak, viz : — Glenea galaihea, 

 Thom., Nupserha variabilis, Gah., and Xylotrechus quadripes, Chevr. 

 . Heritiera fomes, Buch. (simdri), attacked by boring beetles, was 

 found in every case to possess diseased roots. The following insects 

 were bred from dead or dying trees : — Scolytidae : Crossotarsus 

 squamidatus, Chap., C. saundersi, Chap, var.. Platypus sp. n., Cryphalus 

 spp., Xyleborus schlichii, Steb., Progenius {riehlii ?). Cerambycidae : 

 Gelonaeiha liirta, Fairm. Lamiidae : Glenea sp. n., a Buprestid 

 three Curculionids. and a Siricid. 



