164 



Another Braconid, Hahrobracon (Rhogas) kitcheneri, Dudg. & Gough, 

 has been reared in captivity on the pink boUworm, but has not been 

 found in the field on this host. The Ichneumonid, Limnerium 

 interrupitm, and a Bethylid may also be parasitic upon Pectinophora 

 gossypiellu. 



Insects that are Hable to be confused with the pink bollworm are 

 the Tineid, Pyroderces simplex, Wlsm., which is frequently found in 

 autumn and winter in bolls injured by some species of bollworm. The 

 eggs are laid on the damaged ripe bolls and the larvae feed on the 

 injured seeds and fibre. The pupa occurs on the damaged boll, 

 enclosed in a light cocoon of silk, and is smaller than that of 

 P. gossypielh. The winter is apparently passed chiefly in the larval 

 stage, the moths appearing in April. These probably oviposit on 

 any damaged bolls that are available. The hollyhock moth, 

 CrocidosemM plebiana, Zell., does not attack cotton, but might be 

 confused with P. gossypiella if found on the same food-plant. Another 

 moth, a Pyralid, Cryptoblabes gnidiella, Mill, has also been bred from 

 cotton bolls and might also be mistaken for this pest. 



Caetwright (W.). Treatment of Cotton in the Field as a Combative 

 Measure against Gelechia Attacks. Experiments in 1917. — Agric. 

 Jl. Egypt, Cairo, viii, 1918, pp. 43-53. 



Experiments conducted against Pectinophora gossypiella duriug 1917 

 in continuation and amplification of the "Work of 1916 [see this Review, 

 Ser. A, vi, p. 70] clearly demonstrated the following points : — That 

 reduction of water and complete stoppage after the first week in August 

 increases the yield of cotton, does not damage the fibre and ripens the 

 crop earlier ; that topping in addition further increases the yield on 

 well-developed cotton and does not damage the fibre. 



No direct evidence as to the effect of the treatment on the actual 

 attacks of P. gossypiella was afforded by the experiments. 



Adair (E. W.). Preliminary List of Insects associated with Cotton in 



Egypt^Agric. Jl. Egypt, Cairo, viii, 1918, pp. 80-88. 



Large numbers of insects occur on cotton plants in the field,, especially 

 in the squares, some of them feeding on the plant, others being 

 predatory, and others simply sheltering from the heat of the sun or 

 the dampness of the ground. A list, necessarily incomplete, is here 

 given of such insects, together with the parasites of many of them. 



Van dee Goot (P.). Aphididae of Ceylon.^ — Spolia Zeylanica, Colombo, 

 xi, no. 40, June 1918, pp. 70-75, 2 figs. [Received 10th February 

 1919.] 



A list of Aphids collected in Ceylon during 1913-14 includes : — 

 Macrosiphum rosae, L., on roses ; Microtnyzus nigrum, v.d.G., on 

 ferns and cinnamon ; Toxoptera aurantH, Boy., on a wide range of 

 food-plants ; T. minuta, v.d.G., on one of the Cyperaceae ; . Aphis 

 gossypii, Glov., on Aristolochia indica, on a Euphorbiaceous weed, and 

 on Solanum torvum, being attended on the last plant by the red ant, 

 Oecophylla smaragdina ; A. tavaresi, Del Guer., on citrus ; A. medi- 

 caginis, Koch, on Crotalaria striata ; Longimiguis spathodeae, v.d.G., 



