292 Bulletin Jard. Bot. Buitenzorg, Série 111, Vol. IV. Livr. 2. 



very common in tropical countries and described from Java and other 

 islands and by UlCHANGO from the Philippine islands. 

 Sebesy-island, April 28th 1921, No. 5407. 



Literature: 1) D. v. L.Java. III. No. 93. fig. 49; 



2) L. UlCHANGO. a biol. and syst. study of Phillippine plant-galls. 

 PhiL Journ. of Science. Vol. XIV. 1919. p. 544. Plate XII. fig. 2 and 3. 



Fig. I. A midge-gall on An- 

 tidesnia Bunius SPR. XI- 



No. 2. Antidcsma Bunius Spr. 



A leaf-gall caused by a gall-midge. 



A very common gall on this appreciated 

 fruit-tree. They are developed tov^^ards both surfaces 

 of the leaf. On the uppersurface they are semi- 

 globular dark green and glabrous (glossy) swel- 

 lings, measuring about 5 mM. across. On the 

 undersurface the galls are circular discoid swel- 

 lings ; as can be seen in the subjoined figure la. 

 Inside there is a circular flat larval chamber. 



Sebesy-island, in a native-village, April 22nd 

 1921, No. 5092. 



Literature: 1) D. V.L.Java VIII. No. 518 with figure. 



No. 3. Àvicennia marina (FORSK.) ViERH. 

 var. intermedia (ORIFF.) Bakh. 



A leaff-gall caused by a gall-midge: Stefa- 

 niella falcaria FELT. 



A very common gall on this mangrove-plant; 

 ball-shaped excrescences on the mid-rib of the 

 leaf; see the accompanying figure. 



Sebesy-island, tidal-forest. April 23th. 1921. 

 No. 5201. 



Literature: 1) D. v. L. Java. Beitrag III. Marcellia. Vol. IX. 1910. p. 40. 



2) D. V. L. Additional Notes to the article of Mr. E. F. Felt on Javanes e 

 Gall-midges. Treubia. Vol. L 1921. p. 153. 



No. 4. Àvicennia marina (FORSK.) ViERH. var. intermedia (GRIFF.) 



Bakh. 



Leaf-gall caused by a gall-midge: Stcphaniella falcaria FELT. 



A tiny excrescence developed on both sides of the leaf. AIso common 

 in Java but mostly difficult to find ov^ing to its small size. 



Sebesy-island, April 23th 1921. No. 5199. 



Literature: See foregoing gall. 



