124 A NATURALIST IN BORNEO 



issued rapidly from all the spiracles, both abdominal 

 and thoracic, but later they appeared to become 

 comatose and respiration seemed to come to a stand- 

 still, even though the insects were not dead. 



Dr. N. Annandale * was the first to discover Water- 

 Cockroaches, finding them in the Malay Peninsula, 

 the wingless females resting on floating logs, whence 

 they dived into water when disturbed. The winged 

 males were seen to rise from the surface of the water 

 but never to enter it. Since then Dr. Annandale has 

 captured in Lower Burma a winged male which he 

 found swimming on the surface of a pool, and the 

 wingless females and immature males have also been 

 found at Chota Nagpur, whilst another species has 

 been taken in Japan. All the species belong to one 

 sub-family, the Epilamprince, and most of them to the 

 genus Rhicnoda. 



Truly aquatic Orthoptera are distinctly rare, but a 

 good many will jump into water when hard-pressed. 2 

 Once when collecting insects by the margin of a stream 

 at the foot of Mt. Santubong, Sarawak, I saw a tiny Grass- 

 hopper of the sub-family Tetrigincs leap from a rock 

 on which it was resting right into the water and with 

 a few vigorous kicks of its powerful hind-legs it soon 

 reached the bottom of the stream where it clung to a 

 Stone. I dislodged it and frustrated its valiant struggles 

 to reach a pied-a-terre, whereupon, owing to its in- 

 vincible buoyancy, it came bobbing up to the surface 

 like a cork. An Australian species of this sub-family 



1 Entomologist's Record, XII. (1900), p. 75. 



3 Dr. Annandale in a letter pointed out this to me as a very usual 

 occurrence amongst small Indian Orthoptera, and I have observed 

 it frequently in Borneo. 



