473 



days, and the nymphal stage lasts from 13 to 21 days, during which 

 time 5 moults occur. The number of broods during the year has not 

 been definitely ascertained, but there are probably not more than 

 four or five. Tlie chief damage is generally done by the third 

 generation. 



Insects that are frequently found in association with these hoppers 

 are : Hierofjlyphus banian, F., and the Delphacids, Sogata ]ni-sa7ia, 

 Dist. , S. dif'tincta, Dist. , and S. jpallescens, Dist. 



Other rice ])ests include two species of OUarus, Athysanus indicus 

 Dist., A. fusconervosus, Motsch., ThomsonieUa albo?naculata, Dist., 

 Tettigoniella spectra, Dist., Kolla sp., SelenocepJialus virescens, Dist., 

 Paramesus lincaticollis, Dist., Clovia puncta, Wlk. ; Pachidiplosis 

 oryzalis, W. Mason (rice stem fly) ; the moths Schoenobius incertellus 

 {bipunctifer) and Cnaphalocrocis medinalis, and a butterfly Chapra 

 mathias. 



Ramachandra Rao (Y.). Lantana Insects in India. Report on an 

 Inquiry, into the Efficiency of indigenous Insect Pests as a Check 

 on the Spread of Lantana in India. — Mem. Dcpt. Arjrk. India, Puna. 

 Entom. Ser. v, no. 6, June 1920, pp. 239-314, 14 plates, 3 figs. 



The results of these investigations indicate that in India no insect 

 exists that will effectively keep Lantana in check. 



A list is given of 148 species that have been found feeding on this 

 plant. The most efficient of these is the plume moth Platyptilia 

 pusillidactyla , which occurs practically throughout India and breeds 

 in Lantana indica and LJppia geminata, though its increase is checked 

 by natural enemies. The scale Orthc.zia insignis will successfully 

 destroy this plant, but cannot be made use of owing to its polyphagous 

 habits. 



The advisabihty of introducing the Agromyzid fly that keeps down 

 this plant in Hawaii is discussed, and the necessity for careful inves- 

 tigations into the habits of this fly with regard to the possibility of its 

 attacking plants of economic importance in India is emphasised. 



Felt (E. P.). New Indian Gall Midges (Diptera). — Mem. Dept. 

 Agric. India, Pusa. Entom. Ser. vii, no. 1-2, June 1920, pp. 1-1] 



The new Cecidomyiids here described, include: AKphondylia lantanae 

 from galls in flowers of Lantana indica and L. caitara ; Diadiplosis 

 indica reared from larvae preying upon Phen^coccus hirsutus on 

 mulberry and cotton and Pseudococcus corymbatus on cotton ; Rao- 

 diplosis oricntalis, gen. et sp. n., taken on mango stems ; Itonida 

 penniseti from ear-heads of Pennisetum cenchroidcs ; Horidiplosis- fici, 

 gen. et sjj. n.. from pustules on Ficus infectoria ; and Cecidomyia 

 penniseti from ear-heads of Penydsetum typhoideum. 



Lloyd (LI.). Greenhouse White Fly on Tomatoes. — Expt. Sta., 

 Cheshunt, 1920, 2 pp. 



The life-cycle of Aleurodes vaporariorum from egg to adult occupies 

 from 21 to 27 days in the greenhouse in warm weather, but in the spring 

 and autumn it may last from 33 to 42 days. The adult will apparently 

 feed and oviposit on any plant, including weeds, but a marked preference 



