306 Bulletin Jard. bot. Buitenzorg, Série 111, Vol. IV. Livr. 2. 



No. 55. Paederia tomentosa Bl. 



A leaf-gall formed by a gali-gnat: Clinodiplosis paederiae KlEFF. 



Common on Java on Paederiae foetida L. Both parts of the leaf are 

 rolled upwards and covered with long white hairs. The wall of the roU is 

 thick and hard. 



Sebesy, in the forest about 400 M. April 25th 1921, No. 5325. 



Literature: D. v. L. Java I, No. 17, figure 12. 



No. 56. Pericampylus incanus MiERS. 



A leaf-gall caused by a gall-midge. 



The galls are developed on both sides 

 of the leaf-blade. On the uppersurface they 

 are semi-ballshaped, contracted at their base 

 and with a diameter of 1 — 1 V2 rn^- See 

 figure 13. The surface is covered with a 

 layer of short white hairlets. On the under- 

 side is developed a conical or rounded swel- 

 ling densely covered with hairs and about 

 1 mM. in diameter. Also known from Java. 



Sebesy, secondary forest, April 24ht 



1921. No. 5233. 

 Fig. 13. A midge-gall on rericam- 



pyliis incanusMiERS. X 1. Literature: D. v. L. Java V. No. 237. 



No. 57. Piper Bctlc L. 



A leaf-gall caused by a 

 thrips : Gynaikotlirips chavicae 

 (ZiMM.). 



Rollings of both sides of 

 the leafblade with an irregular 

 and light green surface. Also 

 found in Java. See figure 14. 



Sebesy, young forest, April 

 23th. 1921. No. 5128. 



Literature : D. v. L. Java VII. 



No. 474, 

 H. Karny und W. und J. 



DOCTERS VAN LeEUWEN-REYNVAAN, 



Zweite Mitteilung iiber die java- 

 nischen Thysanopterocecidien und 

 deren Bewohner. Zeitschr. f. Wiss. 

 Insektenbiologie, Bd. X. 1914. p. 202. 



No. 58. Piper Betle L. 



A leaf-gall caused by a 

 thrips: Gynaikotlirips chavicae 

 (ZiMM.). 



Fig. 14. A thrips gall on Piper Betle L. X 1. 



