28 DERMAPTERA FROM JAVA, 
Superficially the forcipate form is extraordinarily like 
Nala tenuicornis Borm., but the simplest way to distinguish 
it promptly is by the presence, in the latter species, of 
a distinct, though not very strong, keel on the elytra. 
18. Marava grandis Dubr. 
Semarang: Nov. 1910, 1 4. 
Subfamily 2. Labiinae. 
14. Labia mucronata Stal. 
Batavia: Jan., June and Dec. 1908, 4 oo’. — Goe- 
noeng Oengaran: Sept. 1910, 2 OQ. 
15, Labia pilicornis Motsch. 
Semarang, Batavia and Wonosobo: Jan., April, May, 
June, July and November, 1 9’, several QQ and 1 larva. 
16. Labia curvicauda Motsch. 
Goenoeng Oengaran: September, o and Q. -- Sema- 
rang: Jan. and June, 3 QQ. — Wonosobo: April, 1 Q. 
A variable cosmopolitan species. 
17. Prolabia nigrella Dubr. 
Goenoeng Oengaran: June 1910. 
This specimen is of the colour-variety described by me 
under the name of L. myrmeca (Notes Leyden Mus. XXX, 
Note XIII, p. 96, 1908). 
18. Prolabia arachidis Yers. 
Semarang: Oct, and Dec. 1909, 1 4 and 19. 
A cosmopolitan species. 
19. Chaetospania thoracica Dohrn. 
Goenoeng Oengaran: Sept., 1 9. 
Notes from the Leyden Museum, Vol. XXXIV. 
