JAVA AND SUMATRA. 227 
Subfamily 6. Echinosomatinae. 
7. Echinosoma yorkense Dourn (?). 
Java; Nongkodjadjar, I. 1911, 1 larva and 1 nymph. 
8. Echinosoma horridum Dourn. 
Java: Nongkodjadjar, I. 1911, 1 Q and 1 nymph. 
9. Echinosoma sumatranum De Haan (?). 
Java: Nongkodjadjar, I. 1911, 1 9 and 2 larvae. 
The specific distinctions of this genus are very vague, and 
probably many species will have to be sunk as mere colour 
variants. Mr. JacoBsoN’s observation, that he took the 
three above mentioned species all together under the bark 
of a dead tree, rather confirms the view, that probably 
they are all one species. 
Family 2. Labiduridae. 
Subfamily 3. Psalinae. 
10. Gonolabis kirbyi Burr. 
Java: Gunung Gedeh, III. 1911, 1 4. 
This is the first specimen that I have seen since I des- 
cribed the species 14 years ago, the first earwig that I 
ever described. 
11. Psalis plebeja Doren. 
Sumatra: Deli, 1 © (collected by pr Bussy). 
Superfamily III. Eupermaprera. 
Family 1. Labiidae. 
Subfamily 5. Spongiphorinae. 
12. Irdex nitidipennis Bormans. 
Java: Nongkodjadjar, I. 1912, 3 § 6’, 699; Gunung 
Gedeh, IIT, 1911,-3 3 ¢, 5.9 9: 
Notes from the Leyden Museum, Vol. XXXIV. 
