DOCTERS VAN Leeuwe n : Galls of Krakatau and Sebesy. 29Q 



No. 26. Fiscus subulata Bl. 



An aerial-root-gall caused by a gall-midge. 



The tops of the aerial-roots are swollen into ballshaped or more or 

 less ftsiform galls, about 4 mM. across. The surface is red-browii. Inside 

 there is a tiny larval chamber. 



Island of Krakatau, about 700 M. January 22nd 1922. No. 6059. 



* 



Literature: D. v. L. Java III. No. 111. 



No. 27. Fiscus variegata REINW. 



A leaf-gall caused by a psyllida. 



A very common gall in Java and already described. Almost ball-shaped 

 on the uppersurface of the leaf and of a yellow or lightgreen colour. On 

 the undersurface only a slight thickening. 



Sebesy, Cocos-jungle, April 22nd 1921. N. 5102. 



Literature: D. v. L. Java. III. No. 112 (erroneously designated as a gall-midge gall). 



No. 28. Fluggea virosa Baill. 



A leaf-gall caused by a gall-mite. 



Tiny nodules on the undersurface (or uppersurface) of the leaves, 

 mostly situated near the margin, on the opposite surface a small opening 

 giving entrance to the gall-cavity. Average size ^/4 mM. Common in Java. 



Sebesy, near a native-village. April 23th 1921. No. 51°29. 



Literature: D. v. L. Java II. No. 43. 



* No. 29. Glochidion philippicum ROB. 

 A leaf-gall caused by a gall-midge. 



Only developed on the undersurface of the leaf. They are tiny oval 

 or grain-like swellings of the mid-rib of a dark green or brown colour. 

 Inside there exists a small larval chamber. See accompanying figure. 

 Average size 1 mM. broad, l'/^rn^- long- Already found by me in Java 

 but not yet described. 



Sebesy, April 23th 1921, secondary forest No. 5152a. 



* No. 30. Glochidion philippicum ROB. 

 A leafgall caused by a gall-mite. 



Only on the undersurface of the leaf there are developed mostly cir- 

 cular granular patches, which hâve a white colour. Average size 3 — 5 mM. 



Sebesy, April 22nd 1921. No. 5075; idem April 23th 1921, secundary 

 forest, N. 5152; idem April 24th 1921. N. 5220. 



* No. 31, Glochidion philippicum ROB. 

 A leaf-gall caused by a gall-mite. 



This is almost the same gall as previously described on Gl. nibnim 

 Bl. from Java, and caused by Pliytoptoclietus tristicims Nal. irregulnr 



