Dermaptera collected 



by 



Mr. Edw. Jacobson in Simalur, 



by 



Malcolm Burr, D.Sc. F.E.S. 



Mr. van Eecke, of the Leyden Museum, has communi- 

 cated to me some Dermaptera taken by that indefatigable 

 collector Mr. Edward Jacobson, in the Island of Simalur 

 in 191 3. These work out as follows: 



Section PROTODERMAPTERA. 



Family Labiduridae. 



Subfamily Psalinae. 



Genus Titanolabis, Burr. 



1. sp. n. 



Sinabang: (No. 500). 1 <j>, with ova, April 191 3. 



This species differs from the Australian T. co/ossea, Dohrn, 

 in its much smaller size, and longer and narrower thoracic 

 plates. It is not, however, possible to describe it properly 

 without the male. 



Genus Psalis, Serv. 

 I. plebe ja, DOHRN. 

 Sibigo: 1 $ in August. (No. 5054). 

 Lasikin: 1 cf, in April. (No. 2374). 

 A well known, but not very common, Malayan species. 



