On a new species of Calotermes (Cal. 



teetonae nov. sp.) which attacks 



living teak trees 



by 

 Dr. K. W. DamMERMAN, Malang (Java). 



With pi. 3 and 4. 



The forest service of Java called our attention on a peculiar 

 disease of teak trees (Tectona grandis), which was caused by 

 white ants. 



On trees averaging from 20 — 30 years in a teak plantation 

 at Kedoeng-Djati near Samarang local swellings were found 

 at a height of about 3 — 6 M. Inside these swellings a species 

 of Calotermes was found, which proved to be a new one ] ). 

 The species resembles Calotermes assmuthi HOLMGR., which 

 is found in India. In the succeeding pages a description of 

 the species & its life history will be found. 



Calotermes teetonae nov. spec. 



Imago. Length 8 — 10 mm, upperside of the body chestnut 

 brown, head dark brown, eyes black, lower surface, antennae 

 & legs yellow brown. 



The ocelli lie quite close to the eyes, the antennae have 

 18 — 19 joints. The pronotum has the same breadth as the 

 head and is more than twice as broad as it is long and the 

 corners are roundish. 



The legs are short, the tibiae possess on their extremities 

 three strong thorns, the onychium is well developed. The 

 front margin of the wings is straight. The radius of the fore- 

 wings is connected by many cross veins with the costalis, 



a ) This was also confirmed by Prof. Holmgren of Stockholm. 



