225 



is given. A similar beetle is Uroplata costipennis, which lives on 

 Sida rhombifolia. The eggs of both are laid on the underside of 

 the leaves of their respective food-plants, and the larvae feed on the 

 parenchyma of the leaves, being sheltered between the two surfaces. 

 Both species pupate within the leaves. The respiration of the plant 

 is interfered with in this way. The remedy advocated is spraying 

 with Bordeaux mixture. 



V. Bargen (A.). Heliothis armigera, Hb., bei Hamburg. — Internat. 

 Ent. Zeitschr., Guben, xiv, no. 22, 5th P'ebruary 1921, p. 176. 



Attention is drawn to the exceptional occurrence of Heliothis 

 ohsoleta {armigera) var. fusca, Ckll., in the vicinity of Hamburg. 

 The species was identified from a moth reared from a larva taken on 

 tomato on 1st August 1920. Pupation occurred on 5th August, and 

 the adult emerged on 28th August. This moth is very rare in North 

 Germany. 



Menzel ( — ) & Garretsen ( — ). Sluipwespen in Hileud Koeda 



[Hymenopterous Parasites in Staiiropus alternits.] — De Thee, 

 Buitenzorg, i, no. 4, December 1920, p. 110, 1 plate. 



Tea planters are warned against destro3dng the white cocoons of 

 H^Tnenopterous parasites of the caterpillars, often present during an 

 outbreak of Stauropus alternus. 



Menzel ( — ) & Garretsen (— ). Eitjes van Sprinkhanen op Thee- 



bladeren. [Orthopterous Eggs in the Leaves of Tea.] — De Thee, 

 Buitenzorg, i, no. 4, December 1920, pp. 111-112, 2 plates. 



Blister-like swellings on the edges of tea leaves proved on investi- 

 gation to be insect eggs, and the larvae that hatched out were found 

 to be those of an Orthopteron. 



Palm (B. T.) & Mjoberg (E.). Bestrijding van Rupsenvraat in Deli- 

 Tabak. II. Rijkelijke Bespuiting van plantbare Bibit. [^Measures 

 against Caterpillar Injury to Tobacco in Deli. IL The thorough 

 Spraying of Seedlings ready for Planting.] — Deli Proefstation, 

 Medan, Vlugschrift no. 6, January 1921, 3 pp., 1 fig. 



The three most dangerous tobacco pests on the east coast of Sumatra 

 are Heliothis, Phytometra [Pliisia) and Prodenia ; the chief injury 

 to leaves is due to them. Their extraordinary fertility and rapid 

 development account for the enormous numbers that appear. Other 

 factors favourable to them are the almost complete absence of natural 

 enemies, the abundance of food during the tobacco season, and the 

 favourable climate. 



Measures against the first generation are therefore necessary, and 

 the methods hitherto adopted must be improved or changed. The 

 beds containing seedlings ready for planting out on the following 

 day must be copiously sprayed with a solution of 2 per cent, lead 

 arsenate and 3 per mille soft soap until they are white all over. The 

 nozzle must not be held too close or the tender plants may be injured. 

 The coating must be quite dry before the plants are watered prior 



