INSTITUTE, PUSA, FOll 1919-20 83 



(8) Juar (Andropogon Sorghum) heads, affected by 

 what is known as khas {i.e., sterility) disease in Sind, were 

 received through the Assistant Professor of Entomology at 

 Poona. This disease is believed to be due to a minute Ceci- 

 domyiad fly. The affected spikelets do not form any grain 

 and in this particular case many of the aborted growths in 

 the spikelets exhibited a minute hole in their glumes 

 through which the adult insect had apparently emerged. 

 Many of those which did not show such a hole contained 

 a minute red grub, but nothing could be reared out from 

 these. It seems, however, probable that khas is due to a 

 Cecidomyiad. 



These juar heads contained some fully-formed grains, 



all of which were affected by Sitotroga cerealella, a small 



Gelechiad moth commonly found in granaries. It was, 



however, impossible to determine whether infection had 



taken place in the fields. 



On the same heads a few caterpillars of Cbrcyra 

 cephalonica (Galleriadse ; C. S. 1979) (Plate IX, fig. 2), 

 another but less injurious granary pest, were found binding 

 the grains together with silk and nibbling them. In this 

 case also it was impossible to determine whether infection 

 had taken place in the fields. 



A new species of Antispila (ITeliozelidse) was sent in by 

 Mrs. Drake, of Serampore, Bengal, as feeding on Eugenia 

 jamoolana.' Specimens were reared at Pusa from the 

 material received and have been named by Mr. E. Meyrick 

 as Antispila anna, n. sp. (Plate X). 



Stored Grain Pests. The results of our long series of 

 experiments and the details of the successful method of 

 storage under sand evolved therefrom for the storage of 

 grains have been fully described in a paper, by the present 

 writer and Mr. C. C. Ghosh, in the Proceedings of the 

 Third Entomological Meeting, now in the press. Further 

 work was continued during the year, especially with a view 

 to finding out whether there is any infestation in the fields 

 and, if so, to what extent. For this purpose samples of 

 ripe ears of wheat and barley were collected from various 

 fields on the Farm and are now under observation. 



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